U.S. patent application number 14/468386 was filed with the patent office on 2015-03-05 for sighting device and method.
The applicant listed for this patent is Asia Optical International Ltd., Sintai Optical (Shenzhen) Co., Ltd.. Invention is credited to Ming-Yung Huang.
Application Number | 20150059225 14/468386 |
Document ID | / |
Family ID | 52581193 |
Filed Date | 2015-03-05 |
United States Patent
Application |
20150059225 |
Kind Code |
A1 |
Huang; Ming-Yung |
March 5, 2015 |
Sighting Device and Method
Abstract
A sighting device includes an optical element, a light source,
and a main body. The light source is disposed on an object side of
the optical element to generate light which passes through the
optical element and arrives at an image side of the optical
element. The main body houses the optical element and the light
source. The main body includes an upright part and an extended
part. The extended part extends from the upright part toward the
object side. The light source is disposed in the extended part. The
optical element is disposed in the upright part. A sighting method
includes operating the sighting device.
Inventors: |
Huang; Ming-Yung; (Taichung,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Sintai Optical (Shenzhen) Co., Ltd.
Asia Optical International Ltd. |
Shenzhen City
Tortola |
|
CN
GB |
|
|
Family ID: |
52581193 |
Appl. No.: |
14/468386 |
Filed: |
August 26, 2014 |
Current U.S.
Class: |
42/113 |
Current CPC
Class: |
F41G 1/30 20130101 |
Class at
Publication: |
42/113 |
International
Class: |
F41G 1/34 20060101
F41G001/34 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 28, 2013 |
TW |
102130745 |
Claims
1. A sighting device, comprising: an optical element; a light
source disposed on an object side of the optical element to
generate light which passes through the optical element and arrives
at an image side of the optical element; a main body housing the
optical element and the light source, wherein the main body
comprises an upright part and an extended part, the extended part
extends from the upright part toward the object side, the light
source is disposed in the extended part, and the optical element is
disposed in the upright part.
2. The sighting device as claimed in claim 1, wherein the optical
element comprises a first surface and a second surface, the first
surface faces the object side, and the second surface faces the
image side.
3. The sighting device as claimed in claim 2, wherein the first
surface is convex and the second surface is concave.
4. The sighting device as claimed in claim 2, wherein the optical
element further comprises a reflecting coating disposed on the
first surface.
5. The sighting device as claimed in claim 4, further comprising a
lens attached to the reflecting coating.
6. The sighting device as claimed in claim 2, wherein the first
surface is aspheric.
7. The sighting device as claimed in claim 2, wherein the second
surface is aspheric.
8. The sighting device as claimed in claim 2, wherein the first
surface and the second surface are aspheric.
9. The sighting device as claimed in claim 1, wherein the light
source is located at a focus of the optical element.
10. A sighting method, comprising: providing a sighting device
which comprises an optical element, an extended part, and a light
source disposed in the extended part; mounting the sighting device
on a gun, with the extended part extending towards a muzzle of the
gun; using an eye to observe an object through the sighting device,
wherein the eye and the light source are on different sides of the
optical element.
11. The sighting method as claimed in claim 10, wherein the
sighting device further comprises an upright part with the optical
element disposed in therein, and the extended part extends from the
upright part towards the muzzle of the gun.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention relates to a sighting device and a sighting
method.
[0003] 2. Description of the Related Art
[0004] Referring to FIG. 1, in shooting, a sighting device 30 is
usually matched with a gun 20 to enhance the hit accuracy.
[0005] Referring to FIG. 2, the sighting device 30 includes a main
body 31, an optical element (such as lens) 32, and a light source
33 (such as red light-emitting diode). The optical element 32 and
the light source 33 are installed in the main body 31.
[0006] In operation, light is emitted from the light source 33 and
reflected by the optical element 32 to user's eyes 40 so that the
user can see a red dot on the optical element 32. Then, the user
aims the red dot at a distant target 10, pulls the trigger, and
fires the gun 20.
[0007] FIG. 3A, FIG. 3B, and FIG. 3C illustrate the producing
procedure of the optical element 32. As shown in FIG. 3A, a round
lens 60 is cut along its diameter to obtain two pieces of
semicircle lens wherein reference numeral 61 represents the cutting
line. As shown in FIG. 3B, each of the semicircle lenses is cut
along cutting lines 62 to obtain the optical element 32 shown in
FIG. 3C.
[0008] The round lens 60 has a center C. After cutting, the center
C is located at the bottom of the optical element 32. Referring to
FIG. 2, during assembly of the sighting device 30, the light source
33 is located to aim at the center C.
[0009] Conventionally, the light source 30 of the sighting device
30 and user's eye 40 are on the same side of the optical element
32. As a result, too much light emitted from the light source 33
goes into user's eyes that is uncomfortable for the user.
BRIEF SUMMARY OF THE INVENTION
[0010] The invention provides a sighting device, in which the light
source and user's eyes are on different sides of the optical
element. The light source is installed on the object side, which is
different from the conventional light source installed on the image
side. Therefore, the assembly and aiming operation of the sighting
device of the invention can be accomplished in different situations
to meet different demands. The assembly and aiming operation of the
sighting device of the invention are more flexible. User's eyes are
effectively protected because light into user's eyes is
reduced.
[0011] The sighting device in accordance with an exemplary
embodiment of the invention includes an optical element and a light
source. The light source is disposed on an object side of the
optical element to generate light which passes through the optical
element and arrives at an image side of the optical element.
[0012] In another exemplary embodiment, the optical element
includes a first surface and a second surface, the first surface
faces the object side, and the second surface faces the image
side.
[0013] In yet another exemplary embodiment, the first surface is
convex and the second surface is concave.
[0014] In another exemplary embodiment, the optical element further
includes a reflecting coating disposed on the first surface.
[0015] In yet another exemplary embodiment, the sighting device
further includes a lens attached to the reflecting coating.
[0016] In another exemplary embodiment, the first surface is
aspheric.
[0017] In yet another exemplary embodiment, the second surface is
aspheric.
[0018] In another exemplary embodiment, the first surface and the
second surface are aspheric.
[0019] In yet another exemplary embodiment, the light source is
located at a focus of the optical element.
[0020] In another exemplary embodiment, the sighting device further
includes a main body which houses the optical element and the light
source.
[0021] In yet another exemplary embodiment, the main body includes
an upright part and an extended part, the extended part extends
from the upright part toward the object side, and the light source
is disposed in the extended part.
[0022] In another exemplary embodiment, the main body includes an
upright part and an extended part, the extended part extends from
the upright part toward the object side, and the optical element is
disposed in the upright part.
[0023] The invention further provides a sighting method, including
the steps of providing a sighting device which comprises an optical
element, an extended part, and a light source disposed in the
extended part; mounting the sighting device on a gun, with the
extended part extending towards a muzzle of the gun; using an eye
to observe an object through the sighting device, wherein the eye
and the light source are on different sides of the optical
element.
[0024] In an exemplary embodiment, the sighting device further
comprises an upright part with the optical element disposed in
therein, and the extended part extends from the upright part
towards the muzzle of the gun.
[0025] A detailed description is given in the following embodiments
with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The invention can be more fully understood by reading the
subsequent detailed description and examples with references made
to the accompanying drawings, wherein:
[0027] FIG. 1 depicts a conventional sighting device mounted on a
gum;
[0028] FIG. 2 is a schematic view of the conventional sighting
device;
[0029] FIGS. 3A, 3B, and 3C depict the producing procedure of an
optical element of the conventional sighting device;
[0030] FIG. 4 is a schematic view of a sighting device in
accordance with the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0031] The following description is of the best-contemplated mode
of carrying out the invention. This description is made for the
purpose of illustrating the general principles of the invention and
should not be taken in a limiting sense. The scope of the invention
is best determined by reference to the appended claims.
[0032] Referring to FIG. 4, a sighting device 50 in accordance with
an embodiment of the invention includes a main body 51, an optical
element (such as lens) 52, and a light source 53 (such as red
light-emitting diode).
[0033] In operation, light is emitted from the light source 53,
pass through the optical element 52, and enters user's eyes 40 so
that the user can see a red dot on the optical element 52. Then,
the user aims the red dot at a distant target 10, pulls the
trigger, and fires the gun 20.
[0034] The optical element 52 includes a first surface 521 and a
second surface 522. The first surface 521 faces the object side of
the optical element 52, and the second surface 522 faces the image
side of the optical element 52.
[0035] The first surface 521 of the optical element 52 can be
convex, and the second surface can be concave; that is to say, the
shape of the optical element 52 is meniscus.
[0036] The first surface 521 of the optical element 52 can be
aspheric, or the second surface can be aspheric, or both first
surface 521 and second surface 522 are aspheric.
[0037] A reflecting coating (not shown) can be coated on the first
surface 521 to reduce the light penetrating the optical element 52
thereby avoiding the damage to user's eyes caused by intense light.
Furthermore, a piece of lens (not shown) can be attached to the
reflecting coating for providing protection.
[0038] The main body 51 includes an upright part 511 and an
extended part 512. The extended part 512 extends from the upright
part 511 toward the object side of the optical element 52. The
optical element 52 is installed in the upright part 511, and the
light source 53 is installed in the extended part 512. During
assembly, the light source 53 is located to aim at the center C' of
the uncut optical element 52. Therefore, the light source 53 is
located on the focus of the optical element 52.
[0039] The light source 53 of the sighting device and user's eye 40
are on the different sides of the optical element 52. The light
source 53 is installed on the object side, which is different from
the conventional light source 33 installed on the image side.
Therefore, the assembly and aiming operation of the sighting device
of the invention can be accomplished in different situations to
meet different demands. The assembly and aiming operation of the
sighting device of the invention are more flexible. User's eyes are
effectively protected because light into user's eyes is
reduced.
* * * * *