CN105807419B - Ocular lens head - Google Patents
Ocular lens head Download PDFInfo
- Publication number
- CN105807419B CN105807419B CN201410844010.3A CN201410844010A CN105807419B CN 105807419 B CN105807419 B CN 105807419B CN 201410844010 A CN201410844010 A CN 201410844010A CN 105807419 B CN105807419 B CN 105807419B
- Authority
- CN
- China
- Prior art keywords
- lens
- head
- ocular
- focal length
- effective focal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of ocular lens head includes sequentially the first lens, the second lens, the third lens and the 4th lens from object side to mesh side along optical axis.There is first lens positive refractive power, the second lens there is positive refractive power, the third lens there is negative refractive power, the 4th lens to have positive refractive power.This ocular lens head, the first lens, the second lens, the third lens and the 4th lens meet the following conditions：6≤f1×f2/f≤90；0.2≤|f3/f|≤0.6；0.32≤f4/ f≤0.64, wherein f are the effective focal length of ocular lens head, f1For the effective focal length of the first lens, f2For the effective focal length of the second lens, f3For the effective focal length of the third lens, f4For the effective focal length of the 4th lens.
Description
Technical field
The present invention is about a kind of ocular lens head.
Background technology
Known simple eye digital camera mostly uses optical profile type picture window, user to be watched in real time via optical profile type picture window
The scene to be shot.Use the scene and image sensing to be seen via optical profile type picture window the advantages of optical profile type picture window
There is no that the visual field is poor between the scene that component is captured, but optical profile type picture window causes to make because including ridge-roof type pentaprism
Can not reduce volume with the simple eye digital camera of optical profile type picture window, this be using optical profile type picture window the shortcomings that.And other one
Kind of paraxonic formula picture window causes to be seen via paraxonic formula picture window because the optical axis of its optical axis and the camera lens of camera is inconsistent
Have that the visual field is poor between the scene that scene and image sensing component are captured, visual field when especially shooting short distance object is poor, will
Visual field when significantly greater than shooting long range object is poor.
Invention content
The technical problem to be solved in the present invention is, excessive or have the visual field for picture window volume in the prior art
The defect of difference provides a kind of ocular lens head, minimizes but still has good optical property.
The present invention is to solve its technical problem the technical scheme adopted is that providing a kind of ocular lens head along optical axis from object
Side to mesh side includes sequentially the first lens, the second lens, the third lens and the 4th lens.First lens have positive refractive power, the
There is two lens positive refractive power, the third lens there is negative refractive power, the 4th lens to have positive refractive power.This ocular lens head, first
Lens, the second lens, the third lens and the 4th lens meet the following conditions：6≤f1×f2/f≤90；0.2≤|f3/f|≤0.6；
0.32≤f4/ f≤0.64, wherein f are the effective focal length of ocular lens head, f1For the effective focal length of the first lens, f2For the second lens
Effective focal length, f3For the effective focal length of the third lens, f4For the effective focal length of the 4th lens.
Wherein the second lens, the third lens and a 4th lens at least lens are made of plastic material.
Wherein the 4th lens include convex surface, this is convex surface facing mesh side.
Wherein the second lens, the third lens and a 4th lens at least lens are non-spherical lens.
The ocular lens head for implementing the present invention, has the advantages that：Can arrange in pairs or groups with high-resolution liquid crystal display becomes
Digital camera or the electronic viewing window for carrying escope can avoid the visual field difference caused by using paraxonic formula picture window and ask
Topic, there will not be the excessive problem of reflective picture window volume.The ocular lens head of the present invention has miniaturization but still with good
Optical property, and have the function of diopter adjustment.
Description of the drawings
To enable above-mentioned purpose, feature and the advantage of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly simultaneously coordinates
Attached drawing elaborates.
Fig. 1 is the lens configuration schematic diagram of the first embodiment of ocular lens head according to the present invention.
Fig. 2A is the longitudinal aberration diagram of the ocular lens head of Fig. 1.
Fig. 2 B are the curvature of field figures of the ocular lens head of Fig. 1.
Fig. 2 C are the distortion figures of the ocular lens head of Fig. 1.
Fig. 2 D are the lateral chromatic aberration figures of the ocular lens head of Fig. 1.
Fig. 3 is the lens configuration schematic diagram of the second embodiment of ocular lens head according to the present invention.
Fig. 4 A are the longitudinal aberration diagrams of the ocular lens head of Fig. 3.
Fig. 4 B are the curvature of field figures of the ocular lens head of Fig. 3.
Fig. 4 C are the distortion figures of the ocular lens head of Fig. 3.
Fig. 4 D are the lateral chromatic aberration figures of the ocular lens head of Fig. 3.
Fig. 5 is the lens configuration schematic diagram of the 3rd embodiment of ocular lens head according to the present invention.
Fig. 6 A are the longitudinal aberration diagrams of the ocular lens head of Fig. 5.
Fig. 6 B are the curvature of field figures of the ocular lens head of Fig. 5.
Fig. 6 C are the distortion figures of the ocular lens head of Fig. 5.
Fig. 6 D are the lateral chromatic aberration figures of the ocular lens head of Fig. 5.
Specific implementation mode
Referring to Fig. 1, Fig. 1 is the lens configuration schematic diagram of the first embodiment of ocular lens head according to the present invention.Connect mesh
Camera lens 1 includes sequentially the first lens L11, the second lens L12, the third lens L13 and the 4th from object side to mesh side along optical axis OA1
Lens L14.First lens L11 has positive refractive power, and it is convex surface that object side S12, which is concave surface image side surface S13, object side S12 with
Image side surface S13 is all spherical face.Second lens L12 has positive refractive power, and object side S14 is that convex surface image side surface S15 is convex
Face, object side S14 are spherical face, and image side surface S15 is non-spherical surface.The third lens L13 has negative refractive power, object side
S16 is that concave surface image side surface S17 is concave surface, and object side S16 and image side surface S17 is all non-spherical surface.4th lens L14 has just
Refractive power, object side S18 are that convex surface image side surface S19 is convex surface, and object side S18 is non-spherical surface, and image side surface S19 is spherical surface
Surface.One object O1 (such as small-sized liquid crystal display device) is placed between object side and the first lens L11 when use, and human eye (is not schemed
Show) be located at pupil (Exit Pupil) face EP1, you can watch the magnified image of object O1, about 10 times of enlargement ratio with
On.In addition, changing the space D 1 of object O1 and the first lens L111, can adjust diopter, adjusting range between -3D~+1D it
Between, it is adjusted by diopter, myopia or long sight user can not wear myopia or spectacles for long sight, can also understand and watch object O1's
Magnified image.
In addition, to enable the ocular lens head of the present invention to keep good optical property, the ocular lens head 1 in first embodiment
Three conditions under need to meeting：
6≤f11×f12/f1≤90 (1)
0.2≤|f13/f1|≤0.6 (2)
0.32≤f14/f1≤0.64 (3)
Wherein, f1 is the effective focal length of ocular lens head 1, f11For the effective focal length of the first lens L11, f12For the second lens
The effective focal length of L12, f13For the effective focal length of the third lens L13, f14For the effective focal length of the 4th lens L14.
Utilize the design of said lens so that ocular lens head 1 can effectively shorten camera lens total length, correct aberration, and have
There is diopter adjustment function.
Table one is the relevant parameter table of each lens of ocular lens head 1 in Fig. 1, and one data of table show the ocular lens of the present embodiment
First 1 effective focal length is equal to 24.9902mm, camera lens total length is equal to 42.5482mm.
Table one
The non-spherical surface recess degree z of each lens is obtained by following equation in table one：
Z=ch2/{1+[1-(k+1)c2h2]1/2}+Ah4+Bh6+Ch8
Wherein：
c：Curvature；
h：Lens surface any point to optical axis vertical range；
k：Circular cone coefficient；
A~C：Asphericity coefficient.
Table two is the relevant parameter table of the non-spherical surface of each lens in table one, and wherein k is circular cone coefficient (Conic
Constant), A~C is asphericity coefficient.
Table two
Its effective focal length of the ocular lens head 1 of first embodiment f1=24.9902mm, the effective focal length f1 of the first lens L111
=33.663mm, the effective focal length f1 of the second lens L122The effective focal length f1 of=34.447mm, the third lens L133=-
5.429mm, the effective focal length f1 of the 4th lens L144F1 can be obtained by above-mentioned data in=8.375mm1×f12/ f1=46.402,
|f13/ f1 |=0.217, f14/ f1=0.335 can all meet requirement of the above-mentioned condition (1) to condition (3).In addition, object O1 with
The space D 1 of first lens L111=12.1mm, diopter is equal to 0D (not adjusting diopter) at this time.
In addition, the optical property of the ocular lens head 1 of first embodiment also can reach requirement, this can find out from Fig. 2A to 2D.
It is longitudinal aberration (Longitudinal Aberration) figure of the ocular lens head 1 of first embodiment shown in Fig. 2A.Fig. 2 B
Shown in, it is the curvature of field (Field Curvature) figure of the ocular lens head 1 of first embodiment.It is shown in fig. 2 C, it is the first implementation
Distortion (Distortion) figure of the ocular lens head 1 of example.It is the lateral chromatism of the ocular lens head 1 of first embodiment shown in Fig. 2 D
Poor (Lateral Color) figure.
It can be seen that by Fig. 2A, the ocular lens head 1 of first embodiment is 0.486 μm to wavelength, 0.588 μm, 0.656 μm of light
Longitudinal aberration value caused by line is between -30 ㎜ between 20 ㎜.It can be seen that by Fig. 2 B, the ocular lens head 1 of first embodiment is right
Wavelength be the meridian direction (Tangential) caused by 0.588 μm of light with the sagitta of arc (Sagittal) the direction curvature of field between-
50 ㎜ are between 25 ㎜.It can be seen that by Fig. 2 C, produced by the light that the ocular lens head 1 of first embodiment is 0.588 μm to wavelength
Distortion between 0.0% to 0.8%.It can be seen that by Fig. 2 D, the ocular lens head 1 of first embodiment is 0.486 μm to wavelength,
0.588 μm, 0.656 μm of light lateral chromatism difference caused by different field heights is between -110 μm to 0 μm.It is obvious
The longitudinal aberration of the ocular lens head 1 of first embodiment, the curvature of field, distortion, lateral chromatic aberration can be corrected effectively, to obtain preferably
Optical property.
Referring to Fig. 3, Fig. 3 is the lens configuration schematic diagram of the second embodiment of ocular lens head according to the present invention.Connect mesh
Camera lens 2 includes sequentially the first lens L21, the second lens L22, the third lens L23 and the 4th from object side to mesh side along optical axis OA2
Lens L24.First lens L21 has positive refractive power, and it is convex surface that object side S22, which is concave surface image side surface S23, object side S22 with
Image side surface S23 is all spherical face.Second lens L22 has positive refractive power, and object side S24 is that convex surface image side surface S25 is convex
Face, object side S24 are spherical face, and image side surface S25 is non-spherical surface.The third lens L23 has negative refractive power, object side
S26 is that concave surface image side surface S27 is concave surface, and object side S26 and image side surface S27 is all non-spherical surface.4th lens L24 has just
Refractive power, object side S28 are that convex surface image side surface S29 is convex surface, and object side S28 is non-spherical surface, and image side surface S29 is spherical surface
Surface.One object O2 (such as small-sized liquid crystal display device) is placed between object side and the first lens L21 when use, and human eye (is not schemed
Show) be located at pupil (Exit Pupil) face EP2, you can watch the magnified image of object O2, about 10 times of enlargement ratio with
On.In addition, changing the space D 2 of object O2 and the first lens L211, can adjust diopter, adjusting range between -3D~+1D it
Between, it is adjusted by diopter, myopia or long sight user can not wear myopia or spectacles for long sight, can also understand and watch object O2's
Magnified image.
In addition, to enable the ocular lens head of the present invention to keep good optical property, the ocular lens head 2 in second embodiment
Three conditions under need to meeting：
6≤f21×f22/f2≤90 (4)
0.2≤|f23/f2|≤0.6 (5)
0.32≤f24/f2≤0.64 (6)
Wherein, f2 is the effective focal length of ocular lens head 2, f21For the effective focal length of the first lens L21, f22For the second lens
The effective focal length of L22, f23For the effective focal length of the third lens L23, f24For the effective focal length of the 4th lens L24.
Utilize the design of said lens so that ocular lens head 2 can effectively shorten camera lens total length, correct aberration, and have
There is diopter adjustment function.
Table three is the relevant parameter table of each lens of ocular lens head 2 in Fig. 3, and three data of table show the ocular lens of the present embodiment
First 2 effective focal length is equal to 24.9876mm, camera lens total length is equal to 45.3141mm.
Table three
The non-spherical surface recess degree z of each lens is obtained by following equation in table three：
Z=ch2/{1+[1-(k+1)c2h2]1/2}+Ah4+Bh6+Ch8
Wherein：
c：Curvature；
h：Lens surface any point to optical axis vertical range；
k：Circular cone coefficient；
A~C：Asphericity coefficient.
Table four is the relevant parameter table of the non-spherical surface of each lens in table three, and wherein k is circular cone coefficient (Conic
Constant), A~C is asphericity coefficient.
Table four
Its effective focal length of the ocular lens head 2 of second embodiment f2=24.9876mm, the effective focal length f2 of the first lens L211
=11.299mm, the effective focal length f2 of the second lens L222The effective focal length f2 of=22.241mm, the third lens L233=-
9.778mm, the effective focal length f2 of the 4th lens L244F2 can be obtained by above-mentioned data in=15.119mm1×f22/ f2=
10.057、|f23/ f2 |=0.391, f24/ f2=0.605 can all meet requirement of the above-mentioned condition (4) to condition (6).In addition,
The space D 2 of object O2 and the first lens L211=8.0mm, diopter is equal to -1D at this time.
In addition, the optical property of the ocular lens head 2 of second embodiment also can reach requirement, this can find out from Fig. 4 A to 4D.
It is longitudinal aberration (Longitudinal Aberration) figure of the ocular lens head 2 of second embodiment shown in Fig. 4 A.Fig. 4 B
Shown in, it is the curvature of field (Field Curvature) figure of the ocular lens head 2 of second embodiment.It is the second implementation shown in Fig. 4 C
Distortion (Distortion) figure of the ocular lens head 2 of example.It is the lateral chromatism of the ocular lens head 2 of second embodiment shown in Fig. 4 D
Poor (Lateral Color) figure.
It can be seen that by Fig. 4 A, the ocular lens head 2 of second embodiment is 0.486 μm to wavelength, 0.588 μm, 0.656 μm of light
Longitudinal aberration value caused by line is between -20 ㎜ between 25 ㎜.It can be seen that by Fig. 4 B, the ocular lens head 2 of second embodiment is right
Wavelength be the meridian direction (Tangential) caused by 0.588 μm of light with the sagitta of arc (Sagittal) the direction curvature of field between-
38 ㎜ are between 30 ㎜.It can be seen that by Fig. 4 C, produced by the light that the ocular lens head 2 of second embodiment is 0.588 μm to wavelength
Distortion between -0.5% to 0.0%.It can be seen that by Fig. 4 D, the ocular lens head 2 of second embodiment is 0.486 μ to wavelength
M, 0.588 μm, 0.656 μm of light lateral chromatism difference caused by different field heights is between -70 μm to 0 μm.It is aobvious
See that the longitudinal aberration of the ocular lens head 2 of second embodiment, the curvature of field, distortion, lateral chromatic aberration can be corrected effectively, to obtain compared with
Good optical property.
Referring to Fig. 5, Fig. 5 is the lens configuration schematic diagram of the 3rd embodiment of ocular lens head according to the present invention.Connect mesh
Camera lens 3 includes sequentially the first lens L31, the second lens L32, the third lens L33 and the 4th from object side to mesh side along optical axis OA3
Lens L34.First lens L31 has positive refractive power, and it is convex surface that object side S32, which is concave surface image side surface S33, object side S32 with
Image side surface S33 is all spherical face.Second lens L32 has positive refractive power, and object side S34 is that convex surface image side surface S35 is convex
Face, object side S34 are spherical face, and image side surface S35 is non-spherical surface.The third lens L33 has negative refractive power, object side
S36 is that concave surface image side surface S37 is concave surface, and object side S36 and image side surface S37 is all non-spherical surface.4th lens L34 has just
Refractive power, object side S38 are that convex surface image side surface S39 is convex surface, and object side S38 is non-spherical surface, and image side surface S39 is spherical surface
Surface.One object O3 (such as small-sized liquid crystal display device) is placed between object side and the first lens L31 when use, and human eye (is not schemed
Show) be located at pupil (Exit Pupil) face EP3, you can watch the magnified image of object O3, about 10 times of enlargement ratio with
On.In addition, changing the space D 3 of object O3 and the first lens L311, can adjust diopter, adjusting range between -3D~+1D it
Between, it is adjusted by diopter, myopia or long sight user can not wear myopia or spectacles for long sight, can also understand and watch object O3's
Magnified image.
In addition, to enable the ocular lens head of the present invention to keep good optical property, the ocular lens head 3 in 3rd embodiment
Three conditions under need to meeting：
6≤f31×f32/f3≤90 (7)
0.2≤|f33/f3|≤0.6 (8)
0.32≤f34/f3≤0.64 (9)
Wherein, f3 is the effective focal length of ocular lens head 3, f31For the effective focal length of the first lens L31, f32For the second lens
The effective focal length of L32, f33For the effective focal length of the third lens L33, f34For the effective focal length of the 4th lens L34.
Utilize the design of said lens so that ocular lens head 3 can effectively shorten camera lens total length, correct aberration, and have
There is diopter adjustment function.
Table five is the relevant parameter table of each lens of ocular lens head 3 in Fig. 5, and five data of table show the ocular lens of the present embodiment
First 3 effective focal length is equal to 24.9872mm, camera lens total length is equal to 44.0176mm.
Table five
The non-spherical surface recess degree z of each lens is obtained by following equation in table five：
Z=ch2/{1+[1-(k+1)c2h2]1/2}+Ah4+Bh6+Ch8
Wherein：
c：Curvature；
h：Lens surface any point to optical axis vertical range；
k：Circular cone coefficient；
A~C：Asphericity coefficient.
Table six is the relevant parameter table of the non-spherical surface of each lens in table five, and wherein k is circular cone coefficient (Conic
Constant), A~C is asphericity coefficient.
Table six
Its effective focal length of the ocular lens head 3 of 3rd embodiment f3=24.9872mm, the effective focal length f3 of the first lens L311
=69.824mm, the effective focal length f3 of the second lens L322The effective focal length f3 of=27.505mm, the third lens L333=-
9.244mm, the effective focal length f3 of the 4th lens L344F3 can be obtained by above-mentioned data in=13.076mm1×f32/ f3=
76.860、|f33/ f3 |=0.370, f34/ f3=0.523 can all meet requirement of the above-mentioned condition (7) to condition (9).In addition,
The space D 3 of object O3 and the first lens L311=10.8mm, diopter is equal to -1D at this time.
In addition, the optical property of the ocular lens head 3 of 3rd embodiment also can reach requirement, this can find out from Fig. 6 A to 6D.
It is longitudinal aberration (Longitudinal Aberration) figure of the ocular lens head 3 of 3rd embodiment shown in Fig. 6 A.Fig. 6 B
Shown in, it is the curvature of field (Field Curvature) figure of the ocular lens head 3 of 3rd embodiment.It is that third is implemented shown in Fig. 6 C
Distortion (Distortion) figure of the ocular lens head 3 of example.It is the lateral chromatism of the ocular lens head 3 of 3rd embodiment shown in Fig. 6 D
Poor (Lateral Color) figure.
It can be seen that by Fig. 6 A, the ocular lens head 3 of 3rd embodiment is 0.486 μm to wavelength, 0.588 μm, 0.656 μm of light
Longitudinal aberration value caused by line is between -30 ㎜ between 25 ㎜.It can be seen that by Fig. 6 B, the ocular lens head 3 of 3rd embodiment is right
Wavelength be the meridian direction (Tangential) caused by 0.588 μm of light with the sagitta of arc (Sagittal) the direction curvature of field between-
35 ㎜ are between 28 ㎜.It can be seen that by Fig. 6 C, produced by the light that the ocular lens head 3 of 3rd embodiment is 0.588 μm to wavelength
Distortion between 0.0% to 1.0%.It can be seen that by Fig. 6 D, the ocular lens head 3 of 3rd embodiment is 0.486 μm to wavelength,
0.588 μm, 0.656 μm of light lateral chromatism difference caused by different field heights is between -110 μm to 0 μm.It is obvious
The longitudinal aberration of the ocular lens head 3 of 3rd embodiment, the curvature of field, distortion, lateral chromatic aberration can be corrected effectively, to obtain preferably
Optical property.
Although the present invention has been disclosed as a preferred embodiment, it is not limited to the present invention, the technology of this field
Personnel still can make some changes and embellishment without departing from the spirit and scope of the present invention, therefore protection scope of the present invention
When subject to as defined in claim.
Claims (8)
1. a kind of ocular lens head, which is characterized in that include sequentially from object side to mesh side along optical axis：
First lens, first lens have positive refractive power；
Second lens, second lens have positive refractive power；
The third lens, the third lens have negative refractive power；And
4th lens, the 4th lens have positive refractive power, and include convex surface, should be convex surface facing the mesh side；
Wherein the ocular lens head, first lens, second lens, the third lens and the 4th lens meet following article
Part：
0.32≤f4/f≤0.64
6≤f1×f2/f≤90
0.2≤|f3/f|≤0.6
Wherein, f is the effective focal length of the ocular lens head, f1For the effective focal length of first lens, f2For the effective of second lens
Focal length, f3For the effective focal length of the third lens, f4For the effective focal length of the 4th lens.
2. ocular lens head as described in claim 1, which is characterized in that second lens, the third lens and the 4th are thoroughly
A mirror at least lens are made of plastic material.
3. ocular lens head as claimed in claim 2, which is characterized in that second lens, the third lens and the 4th are thoroughly
A mirror at least lens are non-spherical lens.
4. ocular lens head as described in claim 1, which is characterized in that second lens, the third lens and the 4th are thoroughly
A mirror at least lens are non-spherical lens.
5. ocular lens head as described in claim 1, which is characterized in that it is convex that the object side of first lens, which is concave surface image side surface,
Face.
6. ocular lens head as described in claim 1, which is characterized in that it is convex that the object side of second lens, which is convex surface image side surface,
Face.
7. ocular lens head as described in claim 1, which is characterized in that it is recessed that the object side of the third lens, which is concave surface image side surface,
Face.
8. ocular lens head as described in claim 1, which is characterized in that the object side of the 4th lens is convex surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844010.3A CN105807419B (en) | 2014-12-30 | 2014-12-30 | Ocular lens head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844010.3A CN105807419B (en) | 2014-12-30 | 2014-12-30 | Ocular lens head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105807419A CN105807419A (en) | 2016-07-27 |
| CN105807419B true CN105807419B (en) | 2018-09-18 |
Family
ID=56420010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410844010.3A Active CN105807419B (en) | 2014-12-30 | 2014-12-30 | Ocular lens head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105807419B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106970464B (en) * | 2017-01-11 | 2019-06-21 | 玉晶光电(厦门)有限公司 | Eyepiece optical system |
| US11048069B2 (en) * | 2017-11-23 | 2021-06-29 | Newmax Technology Co., Ltd. | Three-piece infrared single wavelength projection lens system |
| JP2019215411A (en) * | 2018-06-12 | 2019-12-19 | 株式会社ザクティ | Eyepiece optical system, electronic view finder, and imaging apparatus |
| EP3877802A2 (en) * | 2018-11-09 | 2021-09-15 | Snap Inc. | Projection lens with four spherical glass elements |
| CN111538162A (en) * | 2020-06-04 | 2020-08-14 | 歌尔光学科技有限公司 | Optical system and augmented reality device |
| CN114236864A (en) * | 2021-11-23 | 2022-03-25 | 青岛歌尔声学科技有限公司 | Optical module and head-mounted display equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5815317A (en) * | 1996-03-14 | 1998-09-29 | Nikon Corporation | Eyepiece with broad visibility |
| US5875057A (en) * | 1996-12-24 | 1999-02-23 | Minolta Co., Ltd. | Eyepiece lens system |
| CN1668956A (en) * | 2002-07-18 | 2005-09-14 | 精工精密株式会社 | Lens device |
| TW200842427A (en) * | 2007-04-27 | 2008-11-01 | Hon Hai Prec Ind Co Ltd | Apparatus and method for assembling lens modules |
| TW201219882A (en) * | 2010-11-10 | 2012-05-16 | Largan Precision Co | Optical imaging lens assembly |
| TW201239443A (en) * | 2011-03-31 | 2012-10-01 | Largan Precision Co Ltd | Optical image system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0954259A (en) * | 1995-08-10 | 1997-02-25 | Nikon Corp | Eyepiece lens |
| JPH10311956A (en) * | 1997-05-14 | 1998-11-24 | Olympus Optical Co Ltd | Finder |
| JP2009008956A (en) * | 2007-06-28 | 2009-01-15 | Sharp Corp | Imaging lens, imaging unit, and personal digital assistance incorporating the imaging unit |
| JP6079111B2 (en) * | 2012-10-04 | 2017-02-15 | 株式会社ニコン | Eyepiece optical system, optical equipment |
-
2014
- 2014-12-30 CN CN201410844010.3A patent/CN105807419B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5815317A (en) * | 1996-03-14 | 1998-09-29 | Nikon Corporation | Eyepiece with broad visibility |
| US5875057A (en) * | 1996-12-24 | 1999-02-23 | Minolta Co., Ltd. | Eyepiece lens system |
| CN1668956A (en) * | 2002-07-18 | 2005-09-14 | 精工精密株式会社 | Lens device |
| TW200842427A (en) * | 2007-04-27 | 2008-11-01 | Hon Hai Prec Ind Co Ltd | Apparatus and method for assembling lens modules |
| TW201219882A (en) * | 2010-11-10 | 2012-05-16 | Largan Precision Co | Optical imaging lens assembly |
| TW201239443A (en) * | 2011-03-31 | 2012-10-01 | Largan Precision Co Ltd | Optical image system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105807419A (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105807419B (en) | Ocular lens head | |
| CN106291886B (en) | Wide-angle lens | |
| CN105388609B (en) | A kind of optical eyepiece camera lens and wear display equipment | |
| EP2368149B1 (en) | Improved binocular viewing device | |
| TWI537594B (en) | Near infrared lens assembly | |
| CN106371197B (en) | Imaging lens | |
| CN105572839B (en) | Imaging lens | |
| JP6257171B2 (en) | Eyepiece optical system and imaging apparatus having the same | |
| US9420186B2 (en) | Finder optical system and image capturing apparatus | |
| JP2014074814A (en) | Ocular optical system, optical device, and observation method | |
| CN108802976A (en) | Imaging lens | |
| CN108957709A (en) | Wide-angle lens | |
| CN103777317A (en) | Thin lens | |
| CN110058385A (en) | Wide-angle lens | |
| JP2014224850A (en) | Eyepiece optical system | |
| TWI480576B (en) | Wide-angle lens | |
| JPWO2017022670A1 (en) | Eyepiece optics and electronic viewfinder | |
| TWI529420B (en) | Eyepiece assembly | |
| CN109407274A (en) | A kind of day and night confocal optics camera lens | |
| JP6435783B2 (en) | Eyepiece optics | |
| US20170168319A1 (en) | Hands-free binocular device | |
| CN108957708A (en) | Telephoto lens | |
| CN109143554A (en) | A kind of zoom lens | |
| CN105093483B (en) | Imaging lens | |
| CN108345086A (en) | Imaging lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |