CN106896430A - A kind of combined type VR lens combinations - Google Patents
A kind of combined type VR lens combinations Download PDFInfo
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- CN106896430A CN106896430A CN201710277544.6A CN201710277544A CN106896430A CN 106896430 A CN106896430 A CN 106896430A CN 201710277544 A CN201710277544 A CN 201710277544A CN 106896430 A CN106896430 A CN 106896430A
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- lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- 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
- G02B27/0101—Head-up displays characterised by optical features
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
Present invention system provides a kind of combined type VR lens combinations, is related to VR lens combinations.The present invention includes lens and screen, and lens include two faces of S1, S2, and the optics significant surface of S2 is provided with Fresnel structure part and non-spherical structure part, and visual acuity region is set in the correspondence screen of non-spherical structure part.Simultaneously be applied on one of face of lens for Fresnel surface structure and non-spherical structure part by the present invention, can effectively reduce the thickness of lens, and then reduces the volume of lens combination, moreover it is possible to substantially reduce the generation of veiling glare, improves the quality of imaging.
Description
Technical field
The present invention relates to VR lens combinations, a kind of combined type VR lens combinations are specifically disclosed.
Background technology
The opticator of VR systems is typically coordinated using screen and lens, allows users to see 3- at the moment clearly by lens
The image of 7cm screens, uses non-spherical lens VR lens more, and the structure of non-spherical lens is as shown in a of Fig. 1；Due to differently
Area, crowd's interpupillary distance of different sexes are differed, and to adapt to the crowd of different interpupillary distances, the aspherical external diameter of VR lens needs the ratio for doing
It is larger, meanwhile, VR systems have big visual field, a demand of short rear cut-off distance, the focal length of lens generally need to be made it is smaller, main flow
The VR focal lengths of lens are all in 40mm or so；Need to be made than larger, focal length smaller because aspherical external diameter needs to be made, cause
The VR lens thicknesses of formation increase the volume of whole VR systems than larger.
To reduce the volume of VR systems, it is necessary to further reduce thickness, the volume of VR lens, the VR lens of prior art are adopted
With Fresnel Lenses, the structure of Fresnel Lenses is as shown in the b of Fig. 1；Fresnel Lenses is relative to non-spherical lens, volume and weight
Amount reduces more than 40%, thickness reduction by more than 50%, but Fresnel Lenses has zigzag fashion, and saw coast side of tooth (is pulled out
Die face) contrast of imaging can be reduced；Fresnel Lenses is processed to be formed by mould, processing structure such as Fig. 2 of Fresnel Lenses
It is shown, there is a R angle between the working face and non-working surface of sawtooth, ultimately result in imaging and the problem of ghost image, smear occur,
A such as Fig. 3 show the imaging effect of non-spherical lens, and such as b of Fig. 3 show the imaging effect of Fresnel Lenses.
The content of the invention
Based on this, it is necessary to for prior art problem, there is provided a kind of combined type VR lens combinations, volume, thickness are smaller,
The generation of the veiling glares such as smear, ghost image can be substantially reduced, image quality is high.
To solve prior art problem, the present invention discloses a kind of combined type VR lens combinations, including lens and screen, lens
Including two faces of S1, S2, the optics significant surface of S2 is provided with Fresnel structure part and non-spherical structure part, non-spherical structure portion
Visual acuity region in correspondence screen is divided to set.
Further, the optics significant surface of S1 is non-spherical structure or planar structure.
Further, S1 is towards human eye, S2 screen-orienteds.
Further, S2 is at least divided into two regions S21, S22 along the side of lens axis, and S21 is non-spherical structure portion
Point, S22 is Fresnel structure part.
Further, near lens axis, S22 is away from lens axis for S21.
Human eye and screen respectively positioned at the both sides of lens, S1 towards human eye, S2 screen-orienteds, S2 has been arranged alternately aspherical
Structure division and Fresnel structure part, while the visual acuity region of non-spherical structure part correspondence screen is set, work as screen
Central area be visual acuity region, the central area of non-spherical structure part correspondence screen is set, make visual acuity region
Image enter human eye by non-spherical structure part, can effectively eliminate veiling glare, image quality is improved, while S2 is provided with phenanthrene
Nie Er structure divisions, can effectively reduce the volume and thickness of lens.
Beneficial effects of the present invention are：The present invention discloses a kind of combined type VR lens combinations, by Fresnel surface structure and non-
Spherical structure part is applied on one of face of lens simultaneously, can effectively reduce the thickness of lens, and then reduce lens
The volume of system, moreover it is possible to substantially reduce the generation of veiling glare, improves the quality of imaging.
Brief description of the drawings
Fig. 1 is the structural representation of non-spherical lens and Fresnel Lenses.
Fig. 2 is the machining sketch chart of formation Fresnel texture in lens.
Fig. 3 is the imaging schematic diagram of non-spherical lens and Fresnel Lenses.
Fig. 4 is the structural representation of lens in the embodiment of the present invention one.
Fig. 5 is the light path schematic diagram of the embodiment of the present invention one.
Fig. 6 is the optical property schematic diagram of the embodiment of the present invention one.
Fig. 7 is the structural representation of lens in the embodiment of the present invention two.
Fig. 8 is the light path schematic diagram of the embodiment of the present invention two.
Fig. 9 is the optical property schematic diagram of the embodiment of the present invention two.
Figure 10 is the structural representation of lens in the embodiment of the present invention three.
Figure 11 is the light path schematic diagram of the embodiment of the present invention three.
Figure 12 is the optical property schematic diagram of the embodiment of the present invention three.
Specific embodiment
It is specific purposes, the function that can further appreciate that feature of the invention, technological means and reached, with reference to
Accompanying drawing is described in further detail with specific embodiment to the present invention.
Referring to figs. 1 to Figure 12.
The present invention discloses a kind of combined type VR lens combinations, including lens and screen, and lens include two faces of S1, S2, S2
Optics significant surface be provided with Fresnel structure part and non-spherical structure part, vision is quick in the correspondence screen of non-spherical structure part
Sensillary area domain is set, the vision system treatment visual sensitivity highest region only one of which small range of human eye, visual acuity region
Refer to just the image-region of attractive eye notice concentration, visual acuity regional effect quality evaluation of the people to whole image,
Even if the picture quality in the low region of human eye interest level has declined, perception of the human eye to the area image be affected by it compared with
It is small.
The one side S2 of lens is provided with Fresnel structure part, the thickness of lens can be effectively reduced, so as to reduce VR
The volume of lens combination, additionally, S2 is additionally provided with non-spherical structure part, according to the visual acuity area of screen in different VR systems
Domain, the visual acuity region of the position of non-spherical structure part correspondence screen is set, make the larger region of human eye notice into
As quality is high, veiling glare will not be produced.The present invention can also significantly improve image quality while lens volume is reduced.
Embodiment one, with reference to Fig. 4, with lens axis as line of demarcation, S2 the side of lens axis include S21, S22,
S23, S21, S22, S23 set gradually away from lens axis, and S21 and S23 is Fresnel structure part, and S22 is aspherical knot
Structure part, S1 is non-spherical structure, and S1 is towards human eye, S2 screen-orienteds.
Table 1, the design parameter of embodiment one
Table 2, the aspheric design parameter of embodiment one
According to table 1, the parameter designing VR lens combinations of table 2, the imaging system index path of formation refers to Fig. 5, the light of imaging
Learn performance refer to Fig. 6, in Fig. 6 leftmost curve be curvature of field curve, right side graph be distortion curve, the curvature of field is the letter of filed curvature
Claim, be a kind of aberration that object plane forms curved surface picture, distortion is that vertical (transverse direction) magnifying power changes with the increase of visual field and drawn
Rise it is a kind of lose the similar aberration of image, the abscissa of curvature of field curve is defocusing amount, ordinate is image height, the horizontal seat of distortion curve
Amount of distortion, ordinate are designated as image height.Visual acuity region the correspondence S22, S22 of screen are set to aspherical knot in the present embodiment
Structure part, making the imaging in visual acuity region will not produce veiling glare, and image quality is high, while S21 and S23 is Fresnel structure portion
Point, can effectively reduce the volume and weight of lens.
Embodiment two, with reference to Fig. 7, with lens axis as line of demarcation, S2 includes S21, S22 in the side of lens axis,
S21, S22 set gradually away from lens axis, and S21 is non-spherical structure part, and S22 is Fresnel structure part, and S1 is aspheric
Face structure, S1 is towards human eye, S2 screen-orienteds.
Table 3, the design parameter of embodiment two
Table 4, the aspheric design parameter of embodiment two
According to table 3, the parameter designing VR lens combinations of table 4, the imaging system light path of formation refers to Fig. 8, the optics of imaging
Performance refers to Fig. 9, in Fig. 9 leftmost curve be curvature of field curve, right side graph be distortion curve, the curvature of field is the abbreviation of filed curvature,
It is a kind of aberration of object plane formation curved surface picture, distortion is that vertical (transverse direction) magnifying power changes caused one with the increase of visual field
Kind lose the similar aberration of image, the abscissa of curvature of field curve is defocusing amount, ordinate is image height, and the abscissa of distortion curve is
Amount of distortion, ordinate are image height.Visual acuity region the correspondence S21, S21 of screen are set to non-spherical structure portion in the present embodiment
Point, making the imaging in visual acuity region will not produce veiling glare, and image quality is high, while S22 is Fresnel structure part, Neng Gouyou
Effect reduces the volume and weight of lens.
Embodiment three, with reference to Figure 10, with lens axis as line of demarcation, S2 the side of lens axis include S21, S22,
S23, S21, S22, S23 set gradually away from lens axis, and S21 and S23 is Fresnel structure part, and S22 is aspherical knot
Structure part, S1 is planar structure, and S1 is towards human eye, S2 screen-orienteds.
Table 5, the design parameter of embodiment three
Table 6, the aspheric design parameter of embodiment three
According to table 5, the parameter designing VR lens combinations of table 6, the imaging system index path of formation refers to Figure 11, the light of imaging
Learn performance refer to Figure 12, in Figure 12 leftmost curve be curvature of field curve, right side graph be distortion curve, the curvature of field is the letter of filed curvature
Claim, be a kind of aberration that object plane forms curved surface picture, distortion is that vertical (transverse direction) magnifying power changes with the increase of visual field and drawn
Rise it is a kind of lose the similar aberration of image, the abscissa of curvature of field curve is defocusing amount, ordinate is image height, the horizontal seat of distortion curve
Amount of distortion, ordinate are designated as image height.Visual acuity region the correspondence S22, S22 of screen are set to aspherical knot in the present embodiment
Structure part, making the imaging in visual acuity region will not produce veiling glare, and image quality is high, while S21 and S23 is Fresnel structure portion
Point, can effectively reduce the volume and weight of lens.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (5)
1. a kind of combined type VR lens combinations, including lens and screen, it is characterised in that the lens include two faces of S1, S2,
The optics significant surface of the S2 is provided with Fresnel structure part and non-spherical structure part, the aspheric component correspondence screen
Visual acuity region is set in curtain.
2. a kind of combined type VR lens combinations according to claim 1, it is characterised in that the optics significant surface of the S1 is
Non-spherical structure or planar structure.
3. a kind of combined type VR lens combinations according to claim 1, it is characterised in that the S1 is described towards human eye
S2 is towards the screen.
4. a kind of combined type VR lens combinations according to claim 1, it is characterised in that the S2 is along the one of lens axis
Side is at least divided into two regions S21, S22, and the S21 is the aspheric component, and the S22 is the Fresnel structure portion
Point.
5. a kind of combined type VR lens combinations according to claim 4, it is characterised in that the S21 is near the lens
Optical axis, the S22 is away from the lens axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277544.6A CN106896430A (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710277544.6A CN106896430A (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
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| CN106896430A true CN106896430A (en) | 2017-06-27 |
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| CN201710277544.6A Pending CN106896430A (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019214A1 (en) * | 2017-07-25 | 2019-01-31 | 苏州亮宇模具科技有限公司 | Ar optical face mask lens |
| CN109407301A (en) * | 2018-11-30 | 2019-03-01 | 重庆爱奇艺智能科技有限公司 | A kind of eyepiece and headset equipment |
| CN111443479A (en) * | 2017-10-13 | 2020-07-24 | 玉晶光电(厦门)有限公司 | Eyepiece optical system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204595338U (en) * | 2015-05-12 | 2015-08-26 | 成都理想境界科技有限公司 | Wear-type virtual reality display device |
| CN106405833A (en) * | 2016-06-01 | 2017-02-15 | 乐视控股（北京）有限公司 | Head-wearing virtual reality device |
| CN206863257U (en) * | 2017-04-25 | 2018-01-09 | 广东烨嘉光电科技股份有限公司 | A kind of combined type VR lens combinations |
-
2017
- 2017-04-25 CN CN201710277544.6A patent/CN106896430A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204595338U (en) * | 2015-05-12 | 2015-08-26 | 成都理想境界科技有限公司 | Wear-type virtual reality display device |
| CN106405833A (en) * | 2016-06-01 | 2017-02-15 | 乐视控股（北京）有限公司 | Head-wearing virtual reality device |
| CN206863257U (en) * | 2017-04-25 | 2018-01-09 | 广东烨嘉光电科技股份有限公司 | A kind of combined type VR lens combinations |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019019214A1 (en) * | 2017-07-25 | 2019-01-31 | 苏州亮宇模具科技有限公司 | Ar optical face mask lens |
| CN111443479A (en) * | 2017-10-13 | 2020-07-24 | 玉晶光电(厦门)有限公司 | Eyepiece optical system |
| CN109407301A (en) * | 2018-11-30 | 2019-03-01 | 重庆爱奇艺智能科技有限公司 | A kind of eyepiece and headset equipment |
| CN109407301B (en) * | 2018-11-30 | 2021-06-15 | 重庆爱奇艺智能科技有限公司 | Eyepiece and head-mounted equipment |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |
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| RJ01 | Rejection of invention patent application after publication |