U.S. patent application number 10/193151 was filed with the patent office on 2003-01-16 for sighting device.
Invention is credited to Burzel, Timo, Rompf, Thomas, Schiller, Jurgen.
Application Number | 20030012015 10/193151 |
Document ID | / |
Family ID | 7691171 |
Filed Date | 2003-01-16 |
United States Patent
Application |
20030012015 |
Kind Code |
A1 |
Schiller, Jurgen ; et
al. |
January 16, 2003 |
Sighting device
Abstract
A sighting device has an illuminating device for making a
colored target available. A brightness sensor (23) is assigned to
the illuminating device (6) for detecting the brightness in the
target region and a programmable control unit (15) is provided via
which the operation of the sighting device can be adjusted.
Inventors: |
Schiller, Jurgen; (Wetzlar,
DE) ; Burzel, Timo; (Lahnau, DE) ; Rompf,
Thomas; (Lahnau, DE) |
Correspondence
Address: |
Walter Ottesen
Patent Attorney
P.O. Box 4026
Gaithersburg
MD
20885-4026
US
|
Family ID: |
7691171 |
Appl. No.: |
10/193151 |
Filed: |
July 12, 2002 |
Current U.S.
Class: |
362/110 |
Current CPC
Class: |
F41G 1/30 20130101; G02B
23/105 20130101; F41G 1/34 20130101 |
Class at
Publication: |
362/110 |
International
Class: |
F41G 001/34 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 12, 2001 |
DE |
101 33 302.1 |
Claims
What is claimed is:
1. A sighting device comprising: an illuminating device for
providing a colored target mark; and, a programmable control unit
for adjusting the operation of the sighting device.
2. The sighting device of claim 1, further comprising a brightness
sensor connected to said control unit for detecting brightness in
the region of the target.
3. The sighting device of claim 1, wherein said illuminating device
is signal connected to said control unit; said illuminating device
includes means for operating the same utilizing ambient light; and,
said illuminating device further including an additional energy
source or light source.
4. The sighting device of claim 2, further comprising an input unit
via which data is read into said control unit.
5. The sighting device of claim 2, wherein data is supplied to said
control unit via said brightness sensor.
6. The sighting device of claim 1, wherein data is supplied to said
control unit via induction.
7. The sighting device of claim 2, wherein the form of the target
mark is selected from the data read into said control unit.
8. The sighting device of claim 1, wherein the brightness of said
target mark is adapted to the requirements of the person utilizing
said sighting device via the input of data.
9. The sighting device of claim 1, further comprising means for
activating a function via input of data which function indicates
the exhaustion of an additional energy source or a drop below a
predetermined minimum voltage.
10. The sighting device of claim 1, wherein a function is activated
from inputted data so that said illuminating device for
illuminating said target mark is switched off after a predetermined
time span.
11. The sighting device of claim 10, wherein an operator-controlled
element is provided for activating said illuminating device.
12. A method for operating a sighting device which includes an
illuminating device for providing a colored target mark; and, a
programmable control unit for adjusting the operation of the
sighting device; the method comprising the steps of: providing a
program by inputting data into said control unit; and, operating
said sighting device in accordance with said program.
13. The method of claim 12, comprising the further step of causing
said control unit to drive said illumination device for providing
the desired brightness of said target mark.
14. The method of claim 12, comprising the further step of causing
said control unit to drive said illuminating device for providing
the desired form of said target mark.
15. The method of claim 12, wherein said control unit drives the
various energy sources and light sources to make said target mark
available with the desired brightness.
16. A method for manufacturing a sighting device including an
illumination device for providing a colored target mark; and, a
programmable control unit for adjusting the operation of the
sighting device; the method comprising the steps of: eliminating
manufacturing scattering by subjecting said sighting device to a
known brightness or scene; detecting the brightness of the target
mark utilizing a brightness sensor mounted at the position of the
eye of the person sighting; supplying this information to said
programmable control unit to obtain a value; and, adjusting said
target mark to predetermined standardized brightness based on said
value.
17. The method of claim 16, wherein the manufacturing scattering is
eliminated based on several known degrees of brightness.
Description
FIELD OF THE INVENTION
[0001] The invention relates to a sighting device wherein
illumination is provided for making a colored target mark
available.
BACKGROUND OF THE INVENTION
[0002] A beam-spot target device is disclosed in an article
entitled "Der springende Punkt" in the publication "Visier", No. 6,
(1991). The red beam spot of the beam-spot target device assumes
the task of the rear sight and the front sight. The shooter only
has to direct the red spot onto the target and pull the trigger.
Eye spacing, focusing or centering of the graticule as in a
telescopic sight become unnecessary because of a different
operation in a beam-spot target device.
[0003] This beam-spot target device includes an automatic
light-intensity controller so that a clearly outlined point having
the size of a two-mark coin can be seen on a 25 m disc in bright
sunshine. In twilight, the red beam spot of the beam-spot sighting
device becomes a shining star in a disadvantageous manner. This
star could cover the base of a beer can.
[0004] European Patent 0,651,225 discloses a sighting device with
which a colored target is imaged in the eye of the person sighting.
The sighting device includes a light source which includes a
luminescent material. Furthermore, the sighting device has an
additional light source, which can be switched in, and a sensor.
The sensor is so mounted that it is irradiated by natural light in
an undisturbed manner. The in-switchable light source is operated
at maximum power when high intensity of the natural light is
detected. The brightness of the target mark is fixedly pregiven in
dependence upon the detected brightness of the surroundings.
SUMMARY OF THE INVENTION
[0005] It is an object of the invention to provide a sighting
device which is improved in such a manner that the nature of the
target mark and the operation of the sighting device can be adapted
to the individual needs of the person sighting.
[0006] The sighting device of the invention includes: an
illuminating device for providing a colored target mark; and, a
programmable control unit for adjusting the operation of the
sighting device.
[0007] It is possible to adapt the operation of the sighting device
to the needs of the person sighting by providing the sighting
device with a programmable control unit.
[0008] It has been shown that different persons sighting perceive
different degrees of brightness of the target as pleasing. By
providing the programmable control unit, it is now possible to
adapt the brightness of the target to the person sighting.
[0009] A base brightness can be inputted. Furthermore, it can be
additionally provided that the person sighting can pregive a
brightness range wherein the brightness of the target mark varies,
for example .+-.25% or .+-.20% with reference to the base
brightness.
[0010] In a preferred embodiment, the person sighting can select
the form of the target mark by means of the programmable control
unit.
[0011] Furthermore, it can be provided that the person sighting can
preset so that an illumination is automatically switched off after
a predetermined time such as 8, 15, 30 minutes or a few hours. As
the programmable control unit, this illumination is provided as a
component of the illuminating device and is for the illumination of
the target mark.
[0012] It has been shown to be especially advantageous that the
illumination of the sighting device is automatically switched off
by the control unit when non-use of the sighting device is
detected. The non-use can, for example, be detected by a constant
value of a brightness sensor for detecting the brightness in the
region of the target or by a motion sensor.
[0013] In a preferred embodiment, an actuating element (preferably
a press button) is provided by means of which the illumination of
the target mark can be again activated.
[0014] It has been shown to be advantageous that the ambient light
is used for the illumination of the target mark whereby the energy
requirement of the illuminated target mark can be considerably
reduced. For example, a solar cell or a light source containing
luminescent material is suitable. The illuminating device is
further provided with an additional energy source or a further
light source so that the wanted target mark brightness can always
be adjusted.
[0015] A luminescent diode has been shown to be especially suitable
as an additional light source and a battery has been shown to be
especially suitable as an additional energy source. The use of a
rechargeable battery leads to a further reduction of the energy
requirement of the sighting device because the battery can be
recharged by means of the solar cell.
[0016] In a preferred embodiment of the sighting device, an input
unit is provided via which the data can be read into the control
device especially by the person sighting.
[0017] It has also been shown to be advantageous to use a
brightness sensor as the input.
[0018] Desired data can be read in via different light signals to
which different meanings are assigned in the control unit. The
generation of corresponding light patterns can, for example, take
place by means of an operator-controlled element which works in the
manner of a remote control. It can also be provided that an LED is
correspondingly driven by a PC for supplying the predetermined
light sequences. The input of the data into the programmable
control unit via the brightness sensor affords the advantage that
no additional component is required which contributes to a cost
savings. A further advantage is that the sighting device has a
closed housing and therefore a dirtying of the input unit in the
context of a use of the sighting device cannot occur.
[0019] Furthermore, it has been shown to be advantageous to input
the data into the programmable control unit by means of induction.
The signals, which are required for such a data transmission, can
be generated very simply by applying current/voltage to a coil. The
closed off nature of the sighting device can be maintained even
with this type of transmission.
[0020] The input of data via a card (which is pulled through a
slot-shaped input unit) is, however, also possible especially when
an intense dirtying of the sighting device is not anticipated
during use.
[0021] As an advantageous method for operating the sighting device,
it has been shown that the illumination is driven by the
programmable control device in dependence upon the detected
brightness in the region of the target. It can be sufficient to
drive the illuminating device only by means of the ambient
brightness for making available the target mark with the
corresponding brightness. However, it can also be necessary to
switch in an additional energy source or light source to supplement
the ambient brightness or to switch over to the additional light
source or energy source.
[0022] It has been shown to be advantageous that a photodiode can
be provided as a brightness sensor which, in the context of the
manufacturing process of the sighting device, is standardized in
that the brightness sensor is irradiated with known light
intensities. In this way, the scattering of the photodiodes can be
compensated. The signals, which belong to the respective light
intensities, can be stored in the control unit.
[0023] It is, however, possible to assign a separate storage medium
to the sensor by means of which a standardization of the values,
which are stored by the sensor, is undertaken. The control unit can
then be supplied with standardized signals.
[0024] It has been further shown to be advantageous to undertake a
standardization of the entire apparatus in that a scene of known
brightness is viewed via the sighting device and the brightness of
the target mark is detected by means of a sensor mounted at the
location of the eye of the viewer and the values, which are
detected by this sensor, are supplied to the programmable control
unit so long until the detected brightness of the target mark
corresponds to a predetermined standard value. Preferably, various
standard values for different brightnesses of the scene are
predetermined. In this way, it can be ensured in a simple and cost
effective manner that all sighting devices exhibit the same basic
characteristics.
BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The invention will now be described with reference to the
drawings wherein:
[0026] FIG. 1 is a schematic of a sighting device according to an
embodiment of the invention; and,
[0027] FIG. 2 is a schematic of a reflex sighting device according
to another embodiment of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION
[0028] The sighting device 1 shown in FIG. 1 is provided with a
programmable control unit 15 which is a component of an
illuminating arrangement 5. The sighting device 1 includes an
illuminating device 6 for making available an illuminated target
mark 7 as disclosed in U.S. patent application Ser. No. 09/708,180,
filed Nov. 7, 2000, incorporated herein by reference. This
illuminating device 6 includes a luminous diode 10 which is mounted
at the center of a cover glass 8. In the sighting device shown in
FIG. 1, the lenses mounted in the sighting device are not shown for
the sake of clarity.
[0029] The target mark can also be provided by means of a cover
glass. A recess is introduced into the cover glass which appears as
a target mark when the cover glass is peripherally illuminated.
Such a peripheral illumination can be especially made available by
luminescent material. Furthermore, a luminescent diode can be
provided as a light source for a peripheral illumination.
[0030] In this embodiment, a solar cell 29 is provided via which
the LED 10 can be driven. The LED 10 is mounted in the cover glass
or on the cover glass 8. If the energy made available by the solar
cell 29 is not sufficient for making available the target mark 7
with the desired brightness, then an additional battery 31 or
batteries are used for making available the target mark 7 at the
desired brightness. The batteries can be additional or exclusively
for the illumination of the target mark 7. In this embodiment, a
rechargeable battery 31 is appropriate which can be recharged by
the solar cell 29. The target mark 7, which is generated in the
desired brightness, is imaged into the eye 19 of the person
viewing.
[0031] For the detection of the brightness in the target region, a
partially transmissive layer 27 is arranged on the optical axis 21
of the sighting device 1. With this layer 27, a fraction (for
example, 1% of the incident radiation) is supplied to the photo
sensor 25 used as a brightness sensor.
[0032] An input unit 17 is provided for the input of data into the
programmable control unit 15. The data can be read in via the input
unit 17 by means of induction. With these data, the brightness and
form of the target mark 7 can be matched to the individual
requirements of the person viewing. Furthermore, a time duration
can be defined after which the illuminating device 6 of the target
mark 7 is automatically switched off. Furthermore, a selection can
be made as to whether the illuminating device 6 is switched off
only with a detected non-use. It can be activated so that the
brightness of the target mark can be varied in a predetermined
sequence when the capacity of the battery is virtually exhausted or
the voltage, which is made available by the battery, drops below a
predetermined threshold value.
[0033] FIG. 2 shows a reflex sighting unit 3 wherein the target
mark 7 is reflected into the eye of the person sighting. In this
reflex sighting unit 3, an illuminating device 6 is provided which
has a luminescent material 33. The light obtained in this way is
coupled into the reflex sighting unit via a light conductor 35. The
illuminating device 6 further includes a light source 9 which is
operated by a battery 31. The colored light, which is outputted by
the illuminating device 6, is reflected at a mirror 11 in the
direction of a partially transmissible mirror 13 which is
reflectant at the wavelength of the light of the target mark 7.
This partially reflecting mirror 13 is mounted on a lens arranged
at the object end in the reflex sighting unit. Further lenses,
which are provided in the reflex sighting unit are not shown for
reasons of clarity. The light, which is reflected by the
partially-transmissible mirror 13, is reflected into the eye 19 of
the person sighting.
[0034] A brightness sensor 23 is provided for sensing the
brightness in the region of the target. The values, which are
generated by this brightness sensor 23, are supplied to a
programmable control unit 15 via which, inter alia, the light
source 9 can be driven. A sensor 24 for the detection of the light
production from the luminescent material is also provided and this
sensor likewise is in signal connection with the programmable
control unit 15. A determination is made in the programmable
control unit 15 in dependence upon the values of the sensors (23,
24) as to whether the drive of the additional light source 9 is
necessary in order to be able to make the target available with the
desired brightness.
[0035] The brightness sensor 23 is utilized as an input unit for
inputting data into the control unit 15.
[0036] However, a separate input unit 17' can also be provided
which has the form of a slot or a connector. To prevent a dirtying
of this input unit 17', the input unit is provided with a closure
18 which can be removed for inputting data.
[0037] If the input unit 17' is configured to have a slot shape,
then the data of the control unit 15 can be read in in that a card
or magnetic card is introduced through the slot.
[0038] With the reading in of data, it is possible to undertake an
adaptation of the sighting device to the needs of the person
sighting as described already with respect to FIG. 1.
[0039] It is understood that the foregoing description is that of
the preferred embodiments of the invention and that various changes
and modifications may be made thereto without departing from the
spirit and scope of the invention as defined in the appended
claims.
* * * * *