U.S. patent application number 14/439793 was filed with the patent office on 2015-10-15 for lens edging system, edging size management device, edging size management method and method of manufacturing spectacle lens.
The applicant listed for this patent is HOYA CORPORATION. Invention is credited to Takashi DAIMARU, Takahiro SUZUE.
Application Number | 20150290762 14/439793 |
Document ID | / |
Family ID | 50684571 |
Filed Date | 2015-10-15 |
United States Patent
Application |
20150290762 |
Kind Code |
A1 |
SUZUE; Takahiro ; et
al. |
October 15, 2015 |
LENS EDGING SYSTEM, EDGING SIZE MANAGEMENT DEVICE, EDGING SIZE
MANAGEMENT METHOD AND METHOD OF MANUFACTURING SPECTACLE LENS
Abstract
A lens edging system includes: edgers to edge a spectacle lens;
and an edging size management device used in connection with the
edgers. The edging size management device has a memory unit
configured to store and hold information for each model of the
edger. When a lens material is edged using an edging tool of the
edger, in association with a type of the lens material to be edged
by the edger, and a type of the edging tool used by the edger,
information is stored and held in the memory unit regarding edging
characteristics of the edger obtained by at least one of the
edgers, and an edger of the same model as at least one of the
edgers has a correction unit configured to correct an edging
parameter based on the information when edging is performed to the
lens material using the edging tool of the edger.
Inventors: |
SUZUE; Takahiro; (Tokyo,
JP) ; DAIMARU; Takashi; (Tokyo, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HOYA CORPORATION |
Tokyo |
|
JP |
|
|
Family ID: |
50684571 |
Appl. No.: |
14/439793 |
Filed: |
November 1, 2013 |
PCT Filed: |
November 1, 2013 |
PCT NO: |
PCT/JP2013/079668 |
371 Date: |
June 15, 2015 |
Current U.S.
Class: |
451/5 |
Current CPC
Class: |
B24B 27/0023 20130101;
B24B 9/148 20130101; B24B 49/02 20130101; B24B 27/0076
20130101 |
International
Class: |
B24B 9/14 20060101
B24B009/14 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 6, 2012 |
JP |
2012-244552 |
Claims
1. A lens edging system comprising: a plurality of edgers
configured to perform edging to a spectacle lens; and an edging
size management device used in connection with the plurality of
edgers, the edging size management device comprising a memory unit
configured to store and hold information for each model of the
edger, regarding edging characteristics when a lens material is
edged using an edging tool of the edger, in association with a type
of the lens material to be edged by the edger, and a type of the
edging tool used by the edger, wherein the information stored and
held in the memory unit is the information regarding edging
characteristics of the edger obtained by at least one of the
plurality of edgers, and an edger of the same model as at least one
of the plurality of edgers comprises a correction unit configured
to correct an edging parameter for the edging based on the
information stored and held in the memory unit when edging is
performed to the lens material using the edging tool of the
edger.
2. The lens edging system according to claim 1, wherein an edger of
the same model as the edger other than at least one of the
plurality of edgers is configured to adjust an edging size of at
least one type of the lens material which is previously defined as
a reference so that an error between a desired size and a real size
of a spectacle lens after edging is suppressed within an allowable
range, and thereafter the correction unit is configured to correct
the edging parameter when performing edging to the lens material
other than at least one type of the lens material defined as a
reference.
3. An edging size management device used in connection with a
plurality of edgers that perform edging to a spectacle lens,
comprising: a memory unit configured to store and hold information
for each model of the edger, wherein the information regarding
edging characteristics for edging a lens material by the edger
using an edging tool, is stored and held in association with a type
of the lens material to be edged by the edger and a type of the
edging tool used by the edger; an acquisition unit configured to
acquire information regarding edging characteristic of at least one
of the plurality of edgers, as the information stored and held in
the memory unit; and a management unit configured to control so
that an edging parameter for the edging is corrected by the edger
of the same model as at least one of the plurality of edgers, based
on the information stored and held in the memory unit, when edging
is performed to the lens material by the edger using the edging
tool.
4. An edging size management method of managing an edging size for
a plurality of edgers that perform edging to a spectacle lens,
comprising: acquiring information regarding edging characteristic
for performing edging to a lens material by at least one of the
plurality of edgers using an edging tool, in association with all
types of lens materials to be edged by the edger and all types of
edging tools used by the edger, storing and holding the information
regarding edging characteristics acquired by at least one of the
edgers, in association with a model of the edger, a type of the
lens material, and a type of the edging tool; and correcting an
edging parameter for the edging based on the already stored and
held information regarding the edging characteristic, when edging
is performed to the lens material by an edger of the same model as
the at least one of the plurality of edgers, using the edging
tool.
5. A method of manufacturing a spectacle lens, wherein a spectacle
lens is formed by edging using the edger, with an edging size
managed by the edging size management method of claim 4.
Description
TECHNICAL FIELD
[0001] The present invention relates to a lens edging system for
edging a spectacle lens, an edging size management device, an
edging size management method, and a method of manufacturing a
spectacle lens.
BACKGROUND ART
[0002] In general, edgers for edging a spectacle lens perform
edging to a plurality of types of lens materials using a plurality
of types of edging tools selectively according to the lens material
to be edged. Also, size adjustment for edging (called simply size
adjustment hereafter) is performed by such edgers as pre-processing
before actually edging the lens materials. Such a size adjustment
is performed to various lens materials to be edged and various
tools used for edging the lens materials respectively at a
predetermined stage, of introducing such a device or exchanging
tools, so that the error between the real size of a spectacle lens
after edging and a desired size is suppressed within an allowable
range (prescribed allowable value or less for framing a spectacle
lens into a spectacle frame without problem). Specifically, the
axis distance between the rotation axis of the lens material and
the rotation axis of the edging tool is adjusted as the size
adjustment for edging, for example (see, for example, Patent
Document 1).
RELATED ART DOCUMENTS
Patent Documents
[0003] {Patent Document 1}
[0004] Japanese Patent No. 4772342
DISCLOSURE OF THE INVENTION
Problems to be Solved by the Invention
[0005] However, in the conventional size adjustment as described
above, size adjustment needs to be performed to all types of lens
materials to be edged, individually for each edging tool used by
the edger. As a result, in the case of constructing a lens edging
system including a plurality of edgers in a spectacle lens edging
center, for example, size adjustment is required for each of the
plurality of edgers, and much time is required for this size
adjustment as a result. Therefore, there is a strong need for
simplification of the labor of performing size adjustment for each
edger, especially in the case that there are a plurality of
edgers.
[0006] An object of the present invention is to provide a lens
edging system capable of simplifying the labor of performing size
adjustment for each edger in the case that there are a plurality of
edgers, a lens size management device, an edging size management
method, and a method of producing a spectacle lens.
Means for Canceling the Problem
[0007] In order to achieve the above-described object, the present
invention is made.
[0008] According to a first aspect of the present invention, there
is provided a lens edging system including:
[0009] a plurality of edgers configured to perform edging to a
spectacle lens; and
[0010] an edging size management device used in connection with the
plurality of edgers, the edging size management device comprising a
memory unit configured to store and hold information for each model
of the edger, regarding edging characteristics when a lens material
is edged using an edging tool of the edger, in association with a
type of the lens material to be edged by the edger, and a type of
the edging tool used by the edger,
[0011] wherein the information stored and held in the memory unit
is the information regarding edging characteristics of the edger
obtained by at least one of the plurality of edgers, and
[0012] an edger of the same model as at least one of the plurality
of edgers comprises a correction unit configured to correct an
edging parameter for the edging based on the information stored and
held in the memory unit when edging is performed to the lens
material using the edging tool of the edger.
[0013] According to a second aspect of the present invention, there
is provided the system of the first aspect, wherein an edger of the
same model as the edger other than at least one of the plurality of
edgers is configured to adjust an edging size of at least one type
of the lens material which is previously defined as a reference so
that an error between a desired size and a real size of a spectacle
lens after edging is suppressed within an allowable range, and
thereafter the correction unit is configured to correct the edging
parameter when performing edging to the lens material other than at
least one type of the lens material defined as a reference.
[0014] According to a third aspect of the present invention, there
is provided an edging size management device used in connection
with a plurality of edgers that perform edging to a spectacle lens,
including:
[0015] a memory unit configured to store and hold information for
each model of the edger, wherein the information regarding edging
characteristics for edging a lens material by the edger using an
edging tool, is stored and held in association with a type of the
lens material to be edged by the edger and a type of the edging
tool used by the edger;
[0016] an acquisition unit configured to acquire information
regarding edging characteristic of at least one of the plurality of
edgers, as the information stored and held in the memory unit;
and
[0017] a management unit configured to control so that an edging
parameter for the edging is corrected by the edger of the same
model as at least one of the plurality of edgers, based on the
information stored and held in the memory unit, when edging is
performed to the lens material by the edger using the edging
tool.
[0018] According to a fourth aspect of the present invention, there
is provided an edging size management method of managing an edging
size for a plurality of edgers that perform edging to a spectacle
lens, comprising:
[0019] acquiring information regarding edging characteristic for
performing edging to a lens material by at least one of the
plurality of edgers using an edging tool, in association with all
types of lens materials to be edged by the edger and all types of
edging tools used by the edger,
[0020] storing and holding the information regarding edging
characteristics acquired by at least one of the edgers, in
association with a model of the edger, a type of the lens material,
and a type of the edging tool; and
[0021] correcting an edging parameter for the edging based on the
already stored and held information regarding the edging
characteristic, when edging is performed to the lens material by an
edger of the same model as the at least one of the plurality of
edgers, using the edging tool.
[0022] According to a fifth aspect of the present invention, there
is provided a method of manufacturing a spectacle lens, wherein a
spectacle lens is formed by edging using the edger, with an edging
size managed by the edging size management method of claim 4.
Effects of the Invention
[0023] According to the present invention, the labor of performing
size adjustment for each edger can be simplified in the case that
there are a plurality of edgers.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG. 1 is a block diagram showing a configuration example of
an entire lens edging system according to an embodiment of the
present invention.
[0025] FIG. 2 is an explanatory view showing a specific example of
information regarding the edging characteristic of an edger, stored
in a database part of a server device in a lens edging system
according to an embodiment of the present invention.
[0026] FIG. 3 is an explanatory view showing a specific example of
a size management table managed by a management unit in a
correction management program part of a client device in a lens
edging system according to an embodiment of the present
invention.
[0027] FIG. 4 is a flowchart showing a specific example of a
procedure of a size management according to an embodiment of the
present invention.
MODE FOR CARRYING OUT THE INVENTION
[0028] An embodiment of the present invention will be described
hereinafter with reference to the drawings.
[0029] Explanation for this embodiment is itemized in the following
order.
[0030] 1. Schematic structure of entire lens edging system
[0031] 2. Structure of edgers
[0032] 3. Structure of a size management device
[0033] 4. Procedure of size management
[0034] 5. Procedure of manufacturing spectacle lens
[0035] 6. Effects of the present embodiment
[0036] 7. Modified example, etc.
1. Schematic Structure of Entire Lens Edging System
[0037] First, the structure of an entire lens edging system
according to this embodiment will be described.
[0038] FIG. 1 is a block diagram showing an example of a schematic
structure of an entire lens edging system according to an
embodiment.
[0039] The lens edging system is used for edging a spectacle lens
and, for example, is constructed in a spectacle lens edging center.
More specifically, the lens edging system includes a plurality of
edgers 10 disposed in a spectacle lens edging center, a
three-dimensional circumferential measuring device 20, a management
device 30, and a communication line 40 connecting these
devices.
[0040] In the lens edging system with such a structure, the
plurality of edgers 10 are respectively configured to edge a
spectacle lens. Different models may coexist in the plurality of
edgers 10.
[0041] The three-dimensional circumferential length measuring
device 20 is configured to measure the circumferential length of
each spectacle lens after edging.
[0042] The management device 30 functions as a size management
device used in connection with the plurality of edgers 10 and
includes a server device 31 and a client device 32 in this
embodiment. While these server device 31 and client device 32 both
have a function as a computer, they are different in that the
server device 31 controls and manages the operation of the entire
system, whereas the client server 32 controls and manages the
operation of each of the edgers 10. A plurality of client devices
32 may be provided in view of the number of the edgers 10 present
in the system and the number of the edgers 10 that can be managed
by the client device 32. Although in this embodiment, the server
device 31 and the client device 32 are provided separately, these
devices may be provided integrally as one device.
[0043] <2. Structure of Edgers>
[0044] Next, the edgers 10 in the lens edging system will be
described more specifically.
[0045] As described above, the edger 10 is configured to edge a
spectacle lens. Edging is performed to an uncut lens having a
predetermined shape. By this edging, the outer edge of an uncut
lens is processed into a shape that can be fitted into a spectacle
frame. The edger 10 performs such edging using a plurality of types
of edging tools selectively. The edging tool called here is a
cutting/grinding tool used for the circumferential edge of the
uncut lens, specifically, there are beveling tools, flattening
tools, beveling/polishing tools, flattening/polishing tools,
etc.
[0046] There are a plurality of types of uncut lens materials to be
edged. Therefore, the edgers 10 are required to edge a plurality of
types of lens materials.
[0047] However, there is sometimes a difference in edging
properties between the lens materials to be edged (e.g. easy or
difficult to cut) depending on the type. In order to respond to
such a difference in edging properties, several edging modes are
prepared for the edger 10, so that edging conditions at a device
side (such as a tool driving speed) can be varied by switching the
edging modes.
[0048] There is no necessity for a coincidence between the number
of the types of the lens materials to be edged and the number of
the edging modes of the edger 10, and in this embodiment, more
types of the lens materials than the number of edging modes are
assumed to be edged.
[0049] Also, the edger 10 is configured to respond to size
adjustment performed as a pre-processing of the edging. Therefore,
the edger 10 has a function as an adjustment unit 11.
[0050] The adjustment unit 11 has a function of responding to
adjustment of the size. The size adjustment is performed by an
operator of the edger 10 or a maintenance technician, etc. at a
predetermined stage of introducing the device or exchanging tools,
to suppress the error between the real size of a spectacle lens
after edging and a desired size within an allowable range.
Specifically, as the size adjustment, for example a predetermined
lens is actually edged, and its real size after edging is measured.
Then, in order to suppress the error between the real size and a
desired size within an allowable range, an edging condition for
canceling the error is previously set for the edger 10. More
specifically, as the edging condition for canceling the error, a
correction value is previously set at the edger 10 side, for
correcting an edging parameter such as the axis distance between
the lens rotation axis and the edging tool rotation axis and the
edging tool diameter (offset). Such a size adjustment may be
performed using a publicly-known technique (see, for example,
Patent Document 1), and as a specific example, the size adjustment
is performed as follows; the operator, etc., inputs the correction
value into an operation panel of the edger 10 (not shown) for
correcting the edging parameter.
[0051] The edger 10 is also configured to respond to correction of
the edging parameter as the processing for edging. Therefore, the
edger 10 has a function as a correction unit 12.
[0052] The correction unit 12 has a function of responding to the
correction of the edging parameter. Similarly to the abovementioned
size adjustment, the edging parameter is corrected to cancel the
error between the real size and the desired size of the spectacle
lens after edging so as to be set in an allowable range. However,
the edging parameter is corrected before performing edging by the
edger 10, namely, the edging parameter is corrected in an operation
stage of the edger 10. In this point, correction of the edging
parameter is different from the size adjustment performed in a
preparation stage of the edger 10 as the pre-processing of the
edging. Also, correcting the edging parameter is not performed by
the operator of the edger 10 etc., unlike the edging size
adjustment but performed based on the information from the client
device 32 connected to the edger 10. Specifically, when the edger
10 is notified of the correction value for canceling the error from
the client device 32, an edging amount reflecting this correction
value is determined, and thereafter edging is performed. This
function as the correction unit 12 can be realized by setting a
control program of the edger 10 to control so that the correction
value from the client device 32 is received (refers to the client
device 32 for the correction value in some cases), and the edger 10
is driven based on this correction value.
[0053] The edger 10 is configured using a publicly-known technique
in the point other than the abovementioned point, and therefore
explanation therefore is omitted here.
3. Structure of a Size Management Device
[0054] Next, in the lens edging system, the management device 30
that functions as an edging size management device will be
described more specifically.
[0055] As described above, the management device 30 includes the
server device 31 and the client device 32, which will be
sequentially described hereinafter.
[0056] (Structure of a Server Device)
[0057] The server device 31 is composed of a computer that manages
and controls an overall operation of the lens edging system, and
uniformly manages the information regarding the edging performed in
the lens edging system. Specifically, the server device 31 is
connected to a terminal device not shown installed in a spectacle
shop via a wide-area network such as the Internet and receives an
order from this terminal device. When the order is received, the
server device 31 manages the information regarding the job in
accordance with the order, and manages the results of measuring the
circumferential length of a lens after edging obtained by the
three-dimensional circumferential measuring device 20, in
association with the information regarding the job.
[0058] Also, the server device 31 includes a database part 33 and
is configured to store and hold each kind of information in the
database part 33. As each kind of information stored and held in
the database part 33, there is the information in the system,
regarding the edging characteristics of the edger 10, other than
the information managed uniformly in the system (e.g. information
regarding a job and the related information). Namely, the database
part 33 functions as a memory unit that stores and holds the edging
characteristics of the edger 10.
[0059] Information regarding the edging characteristics of the
edger 10 is used to specify the edging characteristics of each of
the edgers 10 when edging a lens material using an edging tool.
Specifically, for example, there is on the information regarding
edging characteristics, or the information for specifying a
dimension of the real size after edging with respect to an
externally indicated edging size, namely, information for
specifying the error between a desired size and the real size after
edging.
[0060] The information regarding edging characteristics stored and
held in the database part 33 will be hereinafter described more
specifically with a specific example.
[0061] FIG. 2 is an explanatory view showing a specific example of
the information regarding the edging characteristic stored and held
in the database part 33 according to this embodiment.
[0062] As shown in the figure, the information regarding the edging
characteristic is stored and held in association with the type of
the lens material to be edged by the edger 10 and the type of the
edging tool used by the edger 10. Namely, the information regarding
the edging characteristic is stored and held in the database part
33 for each type of edging tool, e.g. beveling tool (see FIG. 2
(a)), flattening tool (see FIG. 2 (b)), beveling/polishing tool
(see FIG. 2 (c)), flattening/polishing tool (see FIG. 2 (d)), etc.
and for each type of lens material to be edged, e.g. Material A to
Material I. Also, each type of the lens material has each
corresponding edging mode (e.g. Mode A to Mode D) of the edger 10
used for edging the lens material.
[0063] A specific content of the information regarding the edging
characteristic, includes a correlated value of a theoretical lens
circumferential length value obtained by realizing an outer shape
(outline) as a previously set reference (called "reference shape"
hereafter), an actual lens circumferential value obtained by edging
a specific power lens (such as zero power lens (Plano), and S+4.00
lens and S-7.00 lens) into a reference shape respectively, an
average value of an actual measured circumferential length of a
plurality of lenses, and a value obtained by converting a
difference in the circumferential length between the
circumferential length reference value and the average value of the
actual measured circumferential lengths, to a value in a lens
radial direction (called a "radius converted value of the
circumferential difference").
[0064] Also, as specific examples of the information regarding the
edging characteristic, a device side correction value and a
parameter correction value can be given, in addition to the
abovementioned information. These device side correction value and
parameter correction value are both used to suppress the error
between the real size of a lens after edging and a desired size
within an allowable range. However, the device side correction
value and the parameter correction value are different from each
other in the point that the device side correction value is set and
used at the edger 10 side, and meanwhile the parameter correction
value is used by notifying the edger 10 of this value from the
client device 32. Also, they are different from each other in the
point that the device side correction value is used for size
adjustment, whereas the parameter correction value is used for
correcting the edging parameter. The following relationship is
established between the device side correction value and the
parameter correction value: "radius converted value of the
circumferential difference"="device side correction
value"+"parameter correction value."
[0065] The information regarding the edging characteristic as
described above is stored and held in the database part 33
individually for each model of the edgers 10 when the edgers 10 of
a plurality of models coexist in the system.
[0066] Such information regarding the edging characteristic in the
database part 33 is obtained by actually edging the specific power
lens by at least one of the plurality of edgers 10 in the system.
The number of the at least one of the edgers 10 that performs
actual edging may be one when there is only one model in the
system, although when a plurality of models coexist in the system,
the number must be the same as that of the models or larger.
[0067] (Client Device)
[0068] The client device 32 includes a computer that controls and
manages the operation of each edger 10 in the system under the
management and control by the server device 31. Specifically, the
client device 32 receives information regarding a job managed by
the server device 31 from the server device 31 and notifies the
edger 10 of this information to execute the job (i.e. edging of a
spectacle lens), thereby controlling the job processing operation
performed by the edger 10. Also, the client device 32, prior to the
job processing, acquires information regarding edging
characteristics obtained by at least one edger 10 in the system,
sends the acquired information to the server device 31, and
requests the server device 31 to store and hold the
information.
[0069] To perform such processing, the client device 32 includes a
control program part 34 and a correction management program part
35.
[0070] The control program part 34 is configured to manage and
control the job executed by the edgers 10. Namely, the control
program part 34 has the functions of receiving information
regarding the job from the server device 31, notifying the edger 10
of the information to execute the job (job execution instruction),
etc. These functions may be realized by using a publicly-known
technique, and therefore detailed explanation therefore is omitted
here.
[0071] The correction management program part 35 which is not
included in conventional systems, is configured to notify the edger
10 of correcting the edging parameter when the job is executed by
the edger 10, based on the information stored and held in the
database part 33 of the server device 31. To perform such
processing, the correction management program part 35 has a
function as an acquisition unit 36 and a management unit 37.
[0072] The acquisition unit 36 has a function of acquiring
information regarding the edging characteristic obtained by at
least one edger 10 in the system and sending the acquired
information to the server device 31 so that the information is
stored and held in the database part 33 of the server device 31.
The information regarding the edging characteristic may be acquired
using the publicly-known technique. As a specific example, it can
be considered that the information regarding the edging
characteristics is obtained by using a display device such as a
display of the client device 32 and an input device such as a
keyboard, so that display GUI (Graphical User Interface) screen is
displayed to prompt input of the information, and each kind of
information is imputed by the operator, etc., from the input
device. As the other example, it can be considered that the client
device 32 acquires the information regarding the edging
characteristic from the edger 10, by receiving each kind of
information inputted by the operator, etc., using the operation
panel, etc., of at least one edger 10.
[0073] The management unit 37 has a function of managing the edger
10 to correct the edging parameter when the control program part 34
gives an instruction of executing the job to the edger 10, and the
edger 10 executes the job according to this instruction. The
management of edging parameter correction is performed using a size
management table for each edger 10. Namely, the management unit 37
creates a size management table for each edger 10 and, using the
created size management table, notifies the edger 10 of the
correction value managed by the size management table, so that the
edging parameter is corrected individually for each edger 10.
[0074] FIG. 3 is an explanatory view showing a specific example of
the size management table managed by the management unit 37 of the
correction management program part 35 of this embodiment.
[0075] As shown in the figure, the size management table is created
for each edger 10 to manage (store and hold) the type of lens
material to be edged by the edger 10 (Material A, Material B, the
type of edging tool used by the edger 10 (beveling tool, flattening
tool, and correction values H11, H12, . . . in association with one
another, wherein the correction values H11, H12 . . . are required
for correcting the edging parameter by combining the above types
respectively. As described later in detail, the "parameter
correction value" is read from the database part 33 and then stored
and held in the section of the correction values H11, H12, . . . in
the size management table.
[0076] It can be considered that the correction management program
part 35 having the function as the acquisition unit 36 and the
management unit 37 is realized by a software program run by the
client device 32, which is a computer. In this case, the correction
management program part 35 as a software program is installed on
the client device 32 and is used. However, the present invention is
not necessarily limited thereto, and as long as the client device
32 is accessible, the correction management program part 35 may
exist in the server device 31 or other client device 32 in the
system.
4. Procedure of Size Management
[0077] Next, the procedure of the size management in the lens
edging system with above structure will be described.
[0078] FIG. 4 is a flowchart showing a specific example of the
procedure of the size management according to this embodiment.
[0079] (Processing by First Edger)
[0080] In the lens edging system of this embodiment, when the first
edger 10 of a certain model is introduced, first, the size
adjustment is performed by the edger 10 (Step 101; the step is
abbreviated as simply "S" hereafter). The edging size adjustment is
performed by an operator etc. using a function of the edger 10 as
the adjustment unit 11.
[0081] Specifically, an unedged plano lens of a predetermined lens
material (e.g. Material A) is edged into a reference shape of a
desired size by the first edger 10. A circular shape in plan view
with a circumferential length as a reference value, can be
considered as the reference shape of a desired size. This is
because by having the circular shape in plan view, measurement of
the real size described later can be easy. Further, the plano lens
is selected to be edged, because an influence of a lens curve can
be eliminated, thereby making it easy to perform outline edging and
real size measurement with high precision.
[0082] The outline edging is performed to the plano lens, using
each type of edging tool by the first edger 10. Therefore, the
plano lens after outline edging is obtained by the number of all
types of the edging tools used by the first edger 10.
[0083] After the outline edging is performed to the plano lens, the
real size of the circumferential length of the plano lens after
edging is measured. This size measurement may be performed using
the three-dimensional circumferential length measuring device 20 in
the system, but the present invention is not limited thereto. For
example, the measurement may be performed by an operator etc. using
vernier calipers or any other measuring device.
[0084] Then, the operator etc. compares a desired size
(circumferential length reference value) with the real size and
performs the size adjustment to the first edger so that the error
is suppressed within an allowable range. Specifically, the error
between the desired size and the real size is calculated by the
radius converted value for example, and thereafter by operating the
operation panel of the first edger 10 by the operator, etc., the
correction value of the edging parameter (such as a tool diameter
of the edging tool) is previously set at the edger 10 side, for
each type of the edging tool, so that the calculated error is
canceled. Such processing may be performed using the function
(publicly-known function) specific to the first edger 10.
[0085] Thus, the first edger 10 can perform outline edging to the
plano lens made of at least predefined lens material so that the
error between the desired size and the real size is suppressed in
an allowable range, even if any type of the edging tool is used. In
other words, the edging characteristic described later can be
properly grasped.
[0086] After the size adjustment is performed to the first edger
10, the edging characteristic of this edger 10 is grasped (S102).
The edging characteristic is grasped by actually performing edging
to the specific power lens so that the outer shape is a reference
shape of a desired size, and measuring the real size of the
spectacle lens after edging. The reference shape of a desired size
is the same as the case of the abovementioned plano lens. It can be
considered that the real size is also measured using the
three-dimensional measuring device 20 in the system, similarly to
the case of the abovementioned plano lens. However, the present
invention is not limited thereto, and the measurement may be
performed using vernier calipers or any other measuring device.
[0087] Specifically, an unedged specific power lens (such as zero
power lens (Plano), S+4.00 lens, S-7.00 lens) is prepared, and
[0088] The circumference of each specific power lens is actually
edged into the reference shape of a desired size by the first edger
10, and the lens circumferential length after edging (i.e. the real
size of each specific power lens after edging) is measured.
[0089] By using the measurement result thus obtained, the
difference between the circumferential length and the reference
value of the circumferential length (i.e. the error between a
desired size and the real size) can be calculated. Thus, the edging
characteristic of the first edger 10 can be specified. Namely, in
the case of the plano lens, the outline edging can be performed so
as to suppress the error between the desired size and the real size
in an allowable range. However, when the specific power lens is
selected to be edged, what kind of error is generated or whether
the error is suppressed in the allowable range, can be grasped as
the edging characteristic of the specific power lens.
[0090] Also, in the first edger 10, the edging characteristic is
grasped for all types of lens materials to be edged by this edger
10, and for all types of edging tools used by this edger 10.
Accordingly, by grasping the edging characteristics of all types of
lenses, an influence of the difference between types of the lens
material or the difference between edging tools can be recognized.
Namely, how the edging characteristics of the first edger 10 is
influenced by the above difference can be recognized.
[0091] By grasping the edging characteristic using the
abovementioned method, information regarding the edging
characteristic of the first edger 10 (specifically, each value
constituting the information shown in FIG. 2 for example) is
specified.
[0092] As described above, the edging characteristic is grasped for
the first edger 10, which is at least one edger 10 in the system.
However, "at least one" suggests the possibility that the edging
characteristic is grasped for each of the plurality of edgers 10 of
the same model. When the edging characteristic is grasped for each
of the plurality of edgers 10, high precision and high reliability
can be expected for the result of grasp. However, as described
above, the edging characteristic is preferably grasped by the first
edger 10 only, in consideration of the labor of grasping the edging
characteristic.
[0093] Here, the size adjustment is performed to the first edger 10
by the operator, etc., as needed, using the device side correction
value (for example, see FIG. 2). The size adjustment here is
performed to each type of the edging tool, with the predefined lens
material (such as material A) as a reference. This lens material
will be hereinafter referred to as "reference glass material."
Specifically, first, difference of the circumferential length
(called circumferential difference hereafter) of the specific power
lens made of the reference glass material is measured, then the
obtained value is converted to a radius converted value, and this
value is grasped by the operator, etc. For example, when the edging
tool is a beveling tool (for example, see FIG. 2 (a)), the radius
converted value of the circumferential difference is "0.00"
regarding the reference glass material, and when the edging tool is
a beveling/polishing tool (for example, see FIG. 2 (c)), the radius
converted value of the circumferential difference is "0.01"
regarding the reference glass material. Then, when the radius
converted value of the circumferential difference is grasped,
regarding the reference glass material, the grasped radius
converted value of the circumferential difference is previously set
by an operation of the operator, etc., at the edger 10 side, for
each type of the edging tool, as the device side correction value
of the edger 10, by using the function of the first edger 10 as the
adjustment unit 11. The device-side correction value set at the
edger 10 is called a "machine offset value" hereafter." Thus, for
example, regarding the beveling tool, the machine offset value is
set to "0.00" or non-setting state (for example, see FIG. 2 (a)),
whereas regarding the beveling/polishing tool, the machine offset
value is set to "0.01" (for example, see FIG. 2 (c)). Even in a
case that the edger 10 can have a plurality of edging modes (such
as mode A to mode D), a value in common with all edging modes is
set. Such processing may be performed using the function
(publicly-known function) specific to the first edger 10.
[0094] By performing such a size adjustment, the first edger 10 can
perform outline edging to the lens made of at least the reference
glass material, so as to suppress the error between the desired
size and the real size within an allowable range, even if any kind
of the edging tool is used. In other words, regarding at least the
lens made of the reference glass material, edging characteristics
can be uniform (standardized) even in a case of using any type of
the edging tool.
[0095] (Processing by Edging Size Management Device)
[0096] Thereafter, the client device 32 acquires information
regarding the edging characteristic of the first edger 10 so that
the acquired information is stored and held in the database part 33
of the server device 31 (S104).
[0097] Specifically, in the client device 32, the acquisition unit
36 of the correction management program part 35 displays the GUI
screen to prompt the input of the information so that the operator,
etc., can input each kind of information.
[0098] It can be considered that the input of each kind of
information is performed using the input device of the client
device 32. The input of each kind of information may also be
performed using the operation panel etc. of the first edger 10,
which is connected to the client device 32. The information
inputted here is the information obtained in the abovementioned
step (S102), which is the information regarding the edging
characteristic of the first edger 10. More specifically, it is the
information regarding each item shown in FIG. 2. Among these items,
input of the reference value of the circumferential length and the
actually measured circumferential length is essential. However, the
other item may be acquired by inputting it in the GUI screen
similarly to a required input item, or may be acquired by the
acquisition unit 36 by calculating from the input content of the
required input item.
[0099] Thus, the information regarding the edging characteristic
shown in FIG. 2 is stored and held in the database part 33 of the
server device 31. Storing and holding in the database part 33 is
performed in association with the information for identifying the
model of the first edger 10 (Namely, individually for each model of
the edger 10).
[0100] (Processing by Second and Subsequent Edger)
[0101] Here, explanation is given for a case that edger 10 of the
same model as the first edger 10 is newly introduced to the lens
edging system. The newly introduced edger 10 is called as second
and subsequent edger 10 hereafter.
[0102] When the second and subsequent edger 10 is introduced,
first, size adjustment is performed to each of the edgers 10
(S105a, S105b, . . . ). The size adjustment is performed by the
operation of the operator, etc., using the function of the edger 10
which is the adjustment unit 11 of this edger 10.
[0103] However, the size adjustment performed to the second and
subsequent edger 10 is different from the size adjustment performed
to the first edger 10 in the following point.
[0104] Since the edging characteristic of the second and the
subsequent edger 10 is not grasped like the case performed by the
first edger 10, the size adjustment for appropriately grasping the
edging characteristic, is not required. Therefore, regarding the
second and subsequent edger 10, the pre-size adjustment using the
plano lens like the case performed by the first edger 10, is not
performed, and instead, the size adjustment using the specific
power lens made of the reference glass material is performed.
[0105] Specifically, each of the second and subsequent edger 10
performs edging to an unedged zero power lens (Plano) made of the
glass material, so that the outer shape is the reference shape of a
desired size (namely, the size in which the circumferential length
has the reference value). Then, the real size of the
circumferential length of the zero power lens after edging is
measured. The measurement may be performed using the
three-dimensional circumferential length measuring device 20.
However, the present invention is not limited thereto, and for
example, the measurement may be performed by the operator etc.
using vernier calipers or any other measuring device.
[0106] Such edging and measurement are performed by each of the
second and subsequent edger 10, for each edging tool used by each
edger 10. Accordingly, the measurement result can be obtained
regarding the power zero lens after outline edging and the real
size, by the number of all types of the edging tools used by the
second and subsequent edger 10.
[0107] Thereafter, the operator etc. compares the desired size
(reference value of the circumferential length) and the real size,
calculates the error between the desired size and the real size
using the radius converted value, and operates the operation panel
of the second and subsequent edger 10 so that the correction value
is previously set for each type of the edging tool, which is the
value of correcting the edging parameter (such as tool diameter of
the edging tool) at the edger 10 side as the machine offset value,
so as to cancel the calculated error. Such processing may be
performed using the function (publicly-known function) specific to
the second and subsequent edgers 10.
[0108] By performing such a size adjustment, the outline edging can
be performed by the second and subsequent edger 10 made of at least
the reference glass material, so that the error between the desired
size and the real size is suppressed within the allowable range,
even when any type of edging tool is used. Namely, similarly to the
first edger 10, the edging characteristic can be uniform
(standardized) when edging to at least the reference glass
material, even if any type of edging tool is used.
[0109] (Processing by Edging Size Management Device)
[0110] Subsequently, the client device 32 creates a size management
table (for example, see FIG. 3), for each edger 10, regarding the
edger 10 that exists in the edging system, namely, first, second
and subsequent edger 10 (S106).
[0111] Specifically, in the client device 32, the management unit
37 of the correction management program part 35 recognizes the type
of the lens material (material A, material B, . . . ) to be edged
by the edger 10, and the type of the edging tool (beveling tool,
flattening tool, . . . ) used by the edger 10, for each edger 10
under management. Although these types are recognized for each
edger 10, the same recognition result is obtained when the edger 10
is the same model. When the type of lens material and the type of
edging tool are recognized, a framework (pattern) is created for
managing (storing and holding) these types in a table form in
association with correction values H11, H12, . . . for correcting
the edging parameter. The table is thus created as a size
management table for each edger 10. Creation of the table, and
acquisition of the information required for creating the table, may
be performed using the publicly-known technique, and the method
itself is not particularly limited.
[0112] After the size management table is created for each edger
10, a value (an initial value) is stored in each section of the
correction values H11, H12, . . . in the size management table
(S107).
[0113] Specifically, in the client device 32, first, the management
unit 37 of the correction management program part 35 accesses the
database part 33 of the server device 31 to read "a parameter
correction value" out of the information regarding the acquired
edging characteristics of the first edger 10. The "parameter
correction value" is associated with each type of lens material and
each type of edging tool. When the "parameter correction value," is
read, the management unit 37 of the correction management program
part 35 stores the obtained "parameter correction value" in the
corresponding section of the correction values H11, H12, . . . in
the size management table, in association with the type of the lens
material and the type of the edging tool. Thus, the size management
table is completed, in which the "parameter correction value" is
stored, out of the information regarding the acquired edging
characteristic of the first edger 10, as correction values H11, H12
. . . for correcting the edging parameter.
[0114] According to such a size management table, correction values
H11, H12 . . . can be managed (stored and held) for each type of
the lens material, and further for each type of the edging tool.
Accordingly, when the correction value is managed by the edger 10
side, considerably various types of correction values for each type
of the lens material and for each type of the edging tool can be
uniformly managed, unlike the case that the edger 10 can respond to
only a single correction value or only the correction value for
each edging mode (such as mode A to mode D). Namely, the management
of the correction value of the edging parameter that cannot be
realized by a conventional technical knowledge, can be
realized.
[0115] Although the size management table thus completed is
provided for each edger 10, the content of the table is the same
for the edger 10 of the same model, at least at the point when the
size management table is completed. Namely, the "parameter
correction value" acquired for the first edger 10, is stored in
both of the size management table for the first edger 10, and the
size management table for the second and subsequent edger 10.
[0116] After completion of the size management table, correction
values H11, H12, . . . in the size management table may be suitably
updated according to an operation state of each edger 10. For
example, the following case can be considered: the real size of the
circumferential length of the lens after edging is measured at a
predetermined stage after operation of the edger 10, and based on
the measurement result, correction values H11, H12, . . . may be
changed to new correction values so that the error between the
desired size and the real size is suppressed within an allowable
range. In this case, the real size of the lens after edging is not
under an influence of the operation state of the edger 10 (for
example, an influence of a progress of wear of the edging tool).
Namely, regardless of the operation state of the edger 10, accuracy
of the edging performed to the spectacle lens can be improved,
which can be achieved by creation of the size management table for
each edger 10 by the management unit 37 of the correction
management program part 35 in the client device 32. In other words,
it can be said that creation of the size management table for each
edger 10 contributes to improvement of the accuracy of the edging
after operation of each edger 10.
[0117] Through the abovementioned procedure, the preparatory stage
of the lens edging system of this embodiment is completed. Namely,
after the abovementioned steps (S101 to S107), the lens edging
system of this embodiment is advanced to the operation stage of
performing edging to the spectacle lens.
[0118] In the operation stage, the server device 31 monitors
presence or absence of an order (i.e. presence or absence of a job)
for the spectacle lens. When the job occurs, each type of
information required for executing the job is managed in the
database part 33, and a job number unique to the job is barcoded
and outputted. The barcoded job number is attached to an uncut lens
to be edged under this job, and sent to the first edger 10 or any
one of the second and subsequent edger 10 that performs the edging.
Hereinafter, the first edger 10 or any one of the second and
subsequent edgers 10 that performs the edging is simply called the
edger 10.
[0119] When the barcoded uncut lens is sent, the edger 10 reads the
barcode with a barcode reader of the edger 10 to recognize the job
number and notifies the client device 32 of this job number. Based
on this job number, the client device 32 requests the server device
31 to notify the client device 32 of the information regarding the
job specified by this job number. Then, when the requested
notification (each kind of information) is received from the server
device 31, the client device 32 notifies the edger 10 which is a
request source, of each kind of information. Each kind of
information to notify the edger 10, includes job identification
data (such as a job number), lens data (such as a product code to
specify a lens material, a lens power, a lens thickness, a front
surface shape curve value, a rear surface shape curve value, the
kind of antireflection film, and the kind of lens color), edged
shape data (such as spectacle lens frame's three- and
two-dimensional edging shapes, a theoretical circumferential
length, distinction between a left eye and a right eye, and a
frame/pattern, etc.), edging condition data (such as the kind of
lens material and the kind of edging tool, etc.).
[0120] Also, in the client device 32, in addition to the
abovementioned notification of each kind of information, the
correction management program part 35 has a function as the
management unit 37, to access the information stored in the size
management table for the selected edger 10, and read from the size
management table the correction value of the edging parameter
(namely, corresponding "parameter correction value") in association
with the type of the lens material and the type of the edging tool
according to the job executed by the edger 10, and notify the edger
10 of the selected "parameter correction value" read from the size
management table (S108).
[0121] Thus, the edger 10 is notified of the "parameter correction
value" read from the size management table, from the client device
32 as the information, in addition to each kind of information such
as lens data, edged shape data, and edging condition data, etc., to
execute the job by the edger 10.
[0122] (Processing by Edger that Performs Edging Job)
[0123] Meanwhile, when e the edger 10 is notified of the
abovementioned each kind of information from the client device 32
to execute the job, the edger 10 starts execution of the edging job
based on the notification, namely, the based on the content of each
kind of information.
[0124] At this time, when executing the edging job, the edger 10
has a function as the correction unit 12 to receive the
notification of the "parameter correction value", and determine an
edging amount reflecting the received "parameter correction value".
Namely, based on the received "parameter correction value", the
edging parameter specified by the each kind of information from the
client device 32, specifically the edging tool diameter (offset
amount), is corrected using the "parameter correction value"
(S109a, S109b, S109c).
[0125] The abovementioned correction by the correction unit 12 is
performed based on the size management table managed by the client
device 32. The size management table is capable of collectively
managing an extremely wide variety of correction values for each
type of lens material and each type of edging tool. Accordingly, by
correcting the edging parameter by the correction unit 12, each of
the all types of lens materials to be edged by the edger 10, can be
appropriately corrected, irrespective of the edging mode which can
be set in the edger 10. Also, each of the all types of edging tools
that can be used by the edger 10, can be appropriately
corrected.
[0126] After the edging parameter is corrected by the correction
unit 12, the edger 10 performs edging to a spectacle lens using the
edging parameter after the correction, with a size after correction
(S110a, S110b, S110c).
[0127] At this time, for example, the second and subsequent edger
10 corrects the edging parameter based on the "parameter correction
value" acquired by the first edger 10, namely, based on the
information regarding the edging characteristic of the device other
than its own device. However, in the second and subsequent edger
10, the size adjustment is performed prior to the edging reflecting
the result of correcting the edging parameter (S105a, 8105b), so
that the edging characteristic is uniform (standardized).
Accordingly, even when the edging parameter is corrected based on
the "parameter correction value" acquired by the first edger 10,
appropriate edging can be performed by the second and subsequent
edger 10, reflecting the result of correcting the edging parameter
(or capable of suppressing the error between the desired size and
the real size within an allowable range), similarly to the case of
the first edger 10.
[0128] In the lens edging system of this embodiment, the size
management is performed through the abovementioned procedure, when
edging is performed to the spectacle lens by the edger 10.
5. Procedure of Manufacturing a Spectacle Lens
[0129] Next, the procedure of manufacturing a spectacle lens using
the abovementioned lens edging system will be described
briefly.
[0130] In the lens edging system, when the server device 31
receives an order from a spectacle shop, the uncut lens with
barcoded job number is sent to one of the edgers 10 as a job
execution body. Then, based on the results of reading the barcode
by the edger 10, the edger 10 is notified of each kind of
information required for executing the job, from the client device
32. At this time, as already described, the edger 10 is notified of
the correction value of the edging parameter together, from the
client device 32. Namely, the edger 10 is notified of the
correction value of the edging parameter (e.g. a correction value
converted to a radius value) for each job (each order from the
spectacle shop).
[0131] Here, when the uncut lens is set, which is made of the lens
material ordered from the spectacle shop, edging is started by the
edger 10 to form the circumferential edge of the set uncut lens
into the edged shape suited to the order from the spectacle
shop,
[0132] At this time, an amount for edging the uncut lens by the
edger 10 is the amount reflecting the notification from the client
device 32, namely, reflecting the correction value. Namely, the
edger 10 performs edging to the spectacle lens, while correcting
the edging parameter for each job (for each order from the
spectacle shop), under management of the edging size by the sever
device 31 and the client device 32. Then, after the edging by the
edger 10 is ended, the spectacle lens after edging is taken out
from the edger 10, and the client device 32 is notified of the end
of the edging from the edger 10, and the server device 31 is also
notified accordingly from the client device 32.
[0133] Through the abovementioned procedure, the spectacle lens is
manufactured according to the order from the spectacle shop, in the
lens edging system of this embodiment.
6. Effects of this Embodiment
[0134] According to this embodiment, the following effects can be
obtained.
[0135] In this embodiment, the information regarding the edging
characteristic is grasped by the first edger 10 as at least one of
the edgers 10 in the lens edging system, and the information
regarding the edging characteristic is stored and held in the
database part 33, and based on the stored and held information, the
correction management program part 35 creates the size management
table for each edger 10.
[0136] When each edger 10 edges the spectacle lens, the edging
parameter (specifically tool diameter of the edging tool for
example) for the edging is corrected based on the information
regarding the content managed by the size management table, namely,
the edging characteristic grasped by the first edger, for not only
the first edger 10 but also the second and subsequent edger 10.
Therefore, according to the lens edging system of this embodiment,
even when the edging is performed by either one of the first edger
10 and the second and subsequent edger 10, the error between the
desired size and the real size of the spectacle lens after the
edging is suppressed within an allowable range by correcting the
edging parameter.
[0137] Moreover, according to this embodiment, the edging parameter
is corrected based on the information regarding the edging
characteristic grasped by the first edger 10, not only for the
first edger 10 but also for the second and subsequent edger 10.
Namely, in the case of the same model, the edging parameter is
corrected for the second and subsequent edger 10 as well, by using
the information as it is for the edging characteristic of the first
edger 10. Accordingly, regarding the second and subsequent edger
10, the size adjustment for each edging tool may be performed, to
at least the lens made of the reference glass material, when the
lens is introduced in the lens edging system, and there is no
necessity for performing the size adjustment individually for all
types of the lens material to be edged by the edger 10. Namely, the
edging characteristic of the second and subsequent edger 10 is not
required to be grasped unlike the case with the first edger 10.
Therefore, even when the lens edging system including a plurality
of edgers is constructed, the labor of the size adjustment in the
second and subsequent edger 10 can be considerably simplified.
[0138] It can be said that this is very effective for constructing
the lens edging system responding to a so-called custom-made lens
(lens manufactured based on various specifications for not only the
lens prescription but also the lens material and the
circumferential edging of the lens, in each order from a client).
This is because regarding the custom-made lens, the edger is
required to respond to various lens materials and edging tools,
etc., and a remarkable effect appears in simplifying the size
adjustment for the second and subsequent edger 10.
[0139] Also, in this embodiment, the second and subsequent edger 10
performs size adjustment for each type of the edging tool, so that
the error is suppressed in the allowable range, between the desired
size and the real size of the spectacle lens after edging made of
the reference glass material (namely, at least one type of the lens
material previously defined as a reference), and corrects the
edging parameter based on the edging characteristic of the first
edger 10 when edging is performed to the lens material other than
the reference glass material. Namely, the second and subsequent
edger 10, performs size adjustment to the lens made of the
reference glass material, so that the edging characteristics are
uniform (standardized) corresponding to mainly the first edger 10.
Accordingly, even when the edging parameter is corrected based on
the edging characteristic of the first edger 10, appropriate edging
can be performed, reflecting the result of correcting the edging
parameter for the second and subsequent edger 10, similarly to the
case of the first edger 10 (namely, the error between the desired
size and the real size can be suppressed in the allowable range).
In this case, the "parameter correction value" for the first edger
10 is not simply applied to the second and subsequent edger, but a
technical concept is realized so that the difference of the edging
characteristics between each kind of lens materials, is applied to
the second and subsequent edger 10 based on a relation with the
edging characteristic of the reference glass material.
[0140] Moreover, in this embodiment, the edging parameter is
corrected using the size management table managed by the correction
management program part 35 for any one of the first edger 10 and
the second and subsequent edger 10. Accordingly, unlike the case
that the correction values is managed for each edging mode (e.g.
Mode A to Mode D) at each edger 10 side, an extremely wide variety
of correction values for each type of lens material and for each
type of edging tool used by each edger 10 can be managed
collectively. This is because although the number of the edging
mode in which the edger 10 can be set, is naturally limited in
terms of a memory storage capacity of storing information in this
edger 10, a larger information memory storage capacity can be used
compared with the edger 10, by setting the edging mode at the
management program part 35 of the client device 32. Namely,
management of the correction value of the edging parameter that
cannot be performed by a conventional technique, can be realized,
and therefore suitable edging can be performed to each of the
spectacle lenses having various specifications. It can be said that
this is very effective for constructing the lens edging system
particularly responding to the custom-made lens.
7. Modified Example Etc.
[0141] Embodiments of the present invention have been described
above. However, the above-described disclosure shows an exemplary
embodiment of the present invention. Namely, the technical scope of
the present invention is not limited to the abovementioned
exemplary embodiment.
[0142] For example, although in the above-described embodiment, the
correction management program part 35 that manages the correction
of the edging parameter by each edger 10 is disposed in the client
device 32, the correction management program part 35 may be
disposed in any location in the lens edging system and may be
disposed in another device (e.g. the server device 31).
[0143] Also, although the above-described embodiment shows an
example of managing the edging parameter by the correction
management program part 35, using the size management table for
each edger 10, the present invention is not necessarily limited
thereto. As already described above, by using the size management
table for each edger 10, the operation state of the edger 10 can be
prevented from being influenced by the result of edging. However,
in the case of performing only the correction of the edging
parameter by each edger 10 at an initial stage of the operation,
each edger 10 can be notified of the "parameter correction value"
required for correcting the edging parameter, even if there is no
size management table, by reading the stored and held information
from the database part 33 every time correcting the edging
parameter.
[0144] Moreover, regarding the transfer of each kind of information
between the client device 32 and each edger 10, such as the
transfer of a "parameter correction value," the specific method is
not particularly limited. Namely, the transfer of each kind of
information may be performed mainly by the client device 32 to each
edger 10 or may be performed mainly by each edger 10 in such a
manner as requesting the information from the client device 32 as
needed, or reading the information from the size management table,
etc., of the client device 32.
[0145] Furthermore, the above-described embodiment shows an example
of executing the job by each edger 10, each edger 10, the server
device 31, and the client device 32 installed in the edging center,
according to the order from a terminal device installed at the
spectacle shop. However, the present invention is not necessarily
limited thereto. For example, the edging job can be executed
according to the order from the terminal device installed not in
the spectacle shop but in the edging center. Specifically, it is
conceivable to construct a mechanism of measuring a spectacle frame
shape by a measurement device installed in the edging center, then
framing the edged lens into a spectacle frame whose shape is
measured, and delivering the edged lens from the edging center as a
finished product.
DESCRIPTION OF THE REFERENCE NUMERAL
[0146] 10 edger [0147] 11 adjustment unit [0148] 12 correction unit
[0149] 20 three-dimensional circumferential length measuring device
[0150] 30 management device (edging size management device) [0151]
31 server device [0152] 32 client device [0153] 33 database part
(memory unit) [0154] 34 control program part [0155] 35 correction
management program part [0156] 36 acquisition unit [0157] 37
management unit [0158] 40 communication line
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