CN107144967A - A kind of light-duty eyepiece applied to virtual implementing helmet - Google Patents
A kind of light-duty eyepiece applied to virtual implementing helmet Download PDFInfo
- Publication number
- CN107144967A CN107144967A CN201710525787.7A CN201710525787A CN107144967A CN 107144967 A CN107144967 A CN 107144967A CN 201710525787 A CN201710525787 A CN 201710525787A CN 107144967 A CN107144967 A CN 107144967A
- Authority
- CN
- China
- Prior art keywords
- lens
- eyepiece
- focal length
- duty
- light
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 239000000571 coke Substances 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 7
- 238000009738 saturating Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 201000009310 astigmatism Diseases 0.000 abstract description 4
- 230000004075 alteration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
Abstract
The present invention provides a kind of light-duty eyepiece applied to virtual implementing helmet, including the first lens arranged in order along optical axis from image space to object space, the second lens, the 3rd lens, the 4th lens and the 5th lens, first lens, the second lens and the 3rd lens are collectively forming a lens group, and the lens group meets following conditional with whole eyepiece：∣ fz/f ∣ >=4, wherein, fz is the combined focal length of the first lens, the second lens and the 3rd lens, and f is the focal length of whole eyepiece.4th lens meet following conditional with whole eyepiece：0.8 ≤ ∣ f4/f ∣≤1.2, wherein f4 is the focal length of the 4th lens.5th lens meet following conditional with whole eyepiece：∣ f5/f ∣ >=4, wherein, f5 is the focal length of the 5th lens.The goggle structure significantly reduces the eyeglass weight of optical system, while effectively controlling the aberrations such as astigmatism, secondary color difference；It has it is lightweight, as matter is high, small, the features such as target surface is big of distorting.
Description
Technical field
The present invention relates to lens technology field, more particularly to a kind of light-duty eyepiece applied to virtual implementing helmet.
Background technology
Virtual reality technology (VR) is pursued as in recent years emerging hot spot technology by various circles of society, realizes that VR is visual
The mode of function can simply be summarised as two kinds：The monolithic free surface lens 1. mobile phone screen is arranged in pairs or groups；2. using OLED screen curtain
The eyepiece that many eyeglasses of arranging in pairs or groups are constituted, is mainly used in the VR helmets.The first mainly relies on mobile phone, and cell phone software of arranging in pairs or groups is real
Existing, form is simple, frequently as introduction product；It is common in the high-end VR helmets second, there is independent sensor and processor, can
To realize stronger feeling of immersion.For second scheme, the weight of eyepiece is influenceed as the key factor of equipment experience effect, by
Larger in the usual eyeglass volume of eyepiece, full glass camera lens is difficult control weight, and the poor ability of plastic lens correction astigmatism, secondary color is not
Foot.
The content of the invention
The present invention provides a kind of light-duty eyepiece applied to virtual implementing helmet, solves in the prior art, applied to VR
The technical problems such as eyepiece weight weight, the scarce capacity that volume is big and astigmatism, secondary color are poor of the helmet.
In order to solve the above-mentioned technical problem, the technical solution used in the present invention is：
A kind of light-duty eyepiece applied to virtual implementing helmet, including arranged in order along optical axis from image space to object space
One lens, the second lens, the 3rd lens, the 4th lens and the 5th lens, first lens, the second lens and the 3rd lens are common
With a lens group is formed, the lens group meets following conditional with whole eyepiece：
∣ fz/f ∣ >=4, wherein, fz is the combined focal length of the first lens, the second lens and the 3rd lens, and f is whole eyepiece
Focal length.
Further, the 4th lens meet following conditional with whole eyepiece：
0.8 ≤ ∣ f4/f ∣≤1.2, wherein f4 is the focal length of the 4th lens.
Further, the 5th lens meet following conditional with whole eyepiece：
∣ f5/f ∣ >=4, wherein, f5 is the focal length of the 5th lens.
Preferably, first lens have positive light coke, and second lens have positive light coke, the 3rd lens
With negative power, the 4th lens have positive light coke, and the 5th lens have positive light coke.
Further, focal length, refractive index and the center curvature radius of the first lens to the 5th lens meet following article
Part：
| Focal length | Refractive index | The face of eyeglass first | The face of eyeglass second |
| 25.5≤f1≤45.3 | 1.63≤n1≤1.78 | 14.7≤R1≤25.3 | 40.5≤R2≤72.3 |
| 15.2≤f2≤33.8 | 1.49≤n2≤1.60 | 8.5≤R3≤17.5 | 80≤R4 or R4≤- 80.0 |
| -7.6≤f3≤-17.0 | 1.60≤n2≤1.68 | 80≤R5 or R5≤- 80.0 | 5.1≤R6≤10.6 |
| 0.8≤∣f4/f∣≤1.2 | 1.75≤n4≤1.92 | 11.7≤R7≤22.3 | -77.4≤R8≤-20.3 |
| ∣f5/f∣≥4 | 1.49≤n5≤1.60 | 5.8≤R9≤12.5 | 5.8≤R10≤12.5 |
Wherein, f1 to f5 corresponds respectively to the first lens to the focal length of the 5th lens in order；N1 to n5 distinguishes in order
Corresponding to the refractive index of the first lens to the 5th lens；R1, R3, R5, R7 and R9 correspond respectively to the first lens in order
Five lens are towards the center curvature radius of the side surface of image space one, and R2, R4, R6, R8 and R10 correspond respectively to the first lens in order
To the 5th lens towards the center curvature radius of the side surface of object space one；"-" number represents that direction is negative.
Preferably, first lens and the 4th lens are glass lens, and second lens, the 3rd lens and the 5th are saturating
Mirror is plastic lens.
The present invention provide a kind of light-duty eyepiece applied to virtual implementing helmet, including along optical axis from image space to object space according to suitable
Sequence arrangement the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens, first lens, the second lens and
3rd lens are collectively forming a lens group, and the lens group meets following conditional with whole eyepiece：∣ fz/f ∣ >=4, wherein, fz
For the combined focal length of the first lens, the second lens and the 3rd lens, f is the focal length of whole eyepiece.4th lens with it is whole
Eyepiece meets following conditional：0.8 ≤ ∣ f4/f ∣≤1.2, wherein f4 is the focal length of the 4th lens.5th lens with it is whole
Eyepiece meets following conditional：∣ f5/f ∣ >=4, wherein, f5 is the focal length of the 5th lens.
The goggle structure significantly reduces the eyeglass weight of optical system, while effectively controlling the poor iseikonia of astigmatism, secondary color
Difference；It has it is lightweight, as matter is high, small, the features such as target surface is big of distorting.
Brief description of the drawings
Fig. 1 is a kind of light-duty goggle structure schematic diagram applied to virtual implementing helmet of the invention；
Fig. 2 is the MTF figures of the eyepiece under visible light；
Fig. 3 is the distortion curve figure of the eyepiece.
Embodiment
Below in conjunction with the accompanying drawings, embodiments of the present invention are specifically illustrated, accompanying drawing is only for reference and explanation is used, are not constituted pair
The limitation of scope of patent protection of the present invention.
The eyepiece use 2 sheet glass eyeglasses, 3 glass lens, it is ensured that while Performance of Optical System ensure material it is low into
Originally with eyeglass easy processing；Design emergent pupil is 15mm, and correspondence OLED sizes are 0.5inch；It is D to design diopter adjustable extent
=-6 to+4；Optical distortion full filed at maximum absolute value is less than 2.5%；Optical system rim ray relative illumination is 80%
More than；It is only 25g that system, which has assembled product weight,.
Concrete structure as shown in figure 1, a kind of light-duty eyepiece applied to virtual implementing helmet, including along optical axis from image space to
The first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4 and the 5th lens 5 that object space is arranged in order, the first lens 1,
Second lens 2 and the 3rd lens 3 are collectively forming a lens group, and lens group meets following conditional with whole eyepiece：
∣ fz/f ∣ >=4, wherein, fz is the combined focal length of the first lens 1, the second lens 2 and the 3rd lens 3, and f is whole mesh
The focal length of mirror.
4th lens 4 meet following conditional with whole eyepiece：
0.8 ≤ ∣ f4/f ∣≤1.2, wherein f4 is the focal length of the 4th lens.
5th lens 5 meet following conditional with whole eyepiece：
∣ f5/f ∣ >=4, wherein, f5 is the focal length of the 5th lens.
First lens 1 have positive light coke, and the second lens 2 have positive light coke, and the 3rd lens 3 have negative power, the
Four lens 4 have positive light coke, and the 5th lens 5 have positive light coke.
Focal length, refractive index and the center curvature radius of first lens to the 5th lens meet following condition：
| Focal length | Refractive index | The face of eyeglass first | The face of eyeglass second |
| 25.5≤f1≤45.3 | 1.63≤n1≤1.78 | 14.7≤R1≤25.3 | 40.5≤R2≤72.3 |
| 15.2≤f2≤33.8 | 1.49≤n2≤1.60 | 8.5≤R3≤17.5 | 80≤R4 or R4≤- 80.0 |
| -7.6≤f3≤-17.0 | 1.60≤n2≤1.68 | 80≤R5 or R5≤- 80.0 | 5.1≤R6≤10.6 |
| 0.8≤∣f4/f∣≤1.2 | 1.75≤n4≤1.92 | 11.7≤R7≤22.3 | -77.4≤R8≤-20.3 |
| ∣f5/f∣≥4 | 1.49≤n5≤1.60 | 5.8≤R9≤12.5 | 5.8≤R10≤12.5 |
Wherein, f1 to f5 corresponds respectively to the focal length of the lens 5 of the first lens 1 to the 5th in order；N1 to n5 divides in order
Not Dui Yingyu the first lens to the 5th lens refractive index；R1, R3, R5, R7 and R9 correspond respectively to the first lens extremely in order
5th lens are towards the center curvature radius of the side surface of image space one, and it is saturating that R2, R4, R6, R8 and R10 correspond respectively to first in order
Center curvature radius of the mirror to the 5th lens towards the side surface of object space one；"-" number represents that direction is negative.
First lens 1 and the 4th lens 4 are glass lens, and the second lens 2, the 3rd lens 3 and the 5th lens 5 are that plastics are saturating
Mirror.Specifically, the first glass lens element is concave-convex meniscus shaped lens, and the 4th glass lens element is lenticular lens.
From Fig. 2 to 3 as can be seen that the eyepiece has as matter is high, distort the good optical property such as small.
Above disclosed is only presently preferred embodiments of the present invention, it is impossible to the rights protection model of the present invention is limited with this
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (6)
1. a kind of light-duty eyepiece applied to virtual implementing helmet, it is characterised in that including along optical axis from image space to object space according to suitable
Sequence arrangement the first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens, first lens, the second lens and
3rd lens are collectively forming a lens group, and the lens group meets following conditional with whole eyepiece：
∣ fz/f ∣ >=4, wherein fz is the combined focal length of the first lens, the second lens and the 3rd lens, and f is Jiao of whole eyepiece
Away from.
2. a kind of light-duty eyepiece applied to virtual implementing helmet according to claim 1, it is characterised in that the described 4th
Lens meet following conditional with whole eyepiece：
0.8 ≤ ∣ f4/f ∣≤1.2, wherein f4 is the focal length of the 4th lens.
3. a kind of light-duty eyepiece applied to virtual implementing helmet according to claim 2, it is characterised in that the described 5th
Lens meet following conditional with whole eyepiece：
∣ f5/f ∣ >=4, wherein, f5 is the focal length of the 5th lens.
4. a kind of light-duty eyepiece applied to virtual implementing helmet according to claim 3, it is characterised in that：Described first
Lens have positive light coke, and second lens have positive light coke, and the 3rd lens have negative power, and the described 4th is saturating
Mirror has positive light coke, and the 5th lens have positive light coke.
5. a kind of light-duty eyepiece applied to virtual implementing helmet according to claim 4, it is characterised in that described first
Focal length, refractive index and the center curvature radius of lens to the 5th lens meet following condition：
Wherein, f1 to f5 corresponds respectively to the first lens to the focal length of the 5th lens in order；N1 to n5 is corresponded to respectively in order
In the refractive index of the first lens to the 5th lens；R1, R3, R5, R7 and R9 correspond respectively to the first lens to the 5th saturating in order
Mirror is towards the center curvature radius of the side surface of image space one, and R2, R4, R6, R8 and R10 correspond respectively to the first lens in order
Center curvature radius of five lens towards the side surface of object space one；"-" number represents that direction is negative.
6. a kind of light-duty eyepiece applied to virtual implementing helmet according to claim 5, it is characterised in that：Described first
Lens and the 4th lens are glass lens, and second lens, the 3rd lens and the 5th lens are plastic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710525787.7A CN107144967A (en) | 2017-06-30 | 2017-06-30 | A kind of light-duty eyepiece applied to virtual implementing helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710525787.7A CN107144967A (en) | 2017-06-30 | 2017-06-30 | A kind of light-duty eyepiece applied to virtual implementing helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107144967A true CN107144967A (en) | 2017-09-08 |
Family
ID=59786116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710525787.7A Pending CN107144967A (en) | 2017-06-30 | 2017-06-30 | A kind of light-duty eyepiece applied to virtual implementing helmet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107144967A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358425A (en) * | 2018-11-02 | 2019-02-19 | 杭州有人光电技术有限公司 | A kind of full HD eyepiece optical system of virtual reality device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06175045A (en) * | 1992-12-01 | 1994-06-24 | Asahi Optical Co Ltd | Eyepiece |
| JPH07294809A (en) * | 1994-04-28 | 1995-11-10 | Sony Corp | Projection lens |
| JP2002207164A (en) * | 2001-01-10 | 2002-07-26 | Asahi Optical Co Ltd | Attachment lens for camera |
| CN206930847U (en) * | 2017-06-30 | 2018-01-26 | 东莞市宇瞳光学科技股份有限公司 | A kind of light-duty eyepiece applied to virtual implementing helmet |
-
2017
- 2017-06-30 CN CN201710525787.7A patent/CN107144967A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06175045A (en) * | 1992-12-01 | 1994-06-24 | Asahi Optical Co Ltd | Eyepiece |
| JPH07294809A (en) * | 1994-04-28 | 1995-11-10 | Sony Corp | Projection lens |
| JP2002207164A (en) * | 2001-01-10 | 2002-07-26 | Asahi Optical Co Ltd | Attachment lens for camera |
| CN206930847U (en) * | 2017-06-30 | 2018-01-26 | 东莞市宇瞳光学科技股份有限公司 | A kind of light-duty eyepiece applied to virtual implementing helmet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109358425A (en) * | 2018-11-02 | 2019-02-19 | 杭州有人光电技术有限公司 | A kind of full HD eyepiece optical system of virtual reality device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Pinguang Inventor after: Mi Shilong Inventor after: Liu Guanlu Inventor after: He Jianwei Inventor after: Mao Caiying Inventor before: Mi Shilong |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170908 |