CN206863257U - A kind of combined type VR lens combinations - Google Patents
A kind of combined type VR lens combinations Download PDFInfo
- Publication number
- CN206863257U CN206863257U CN201720441986.5U CN201720441986U CN206863257U CN 206863257 U CN206863257 U CN 206863257U CN 201720441986 U CN201720441986 U CN 201720441986U CN 206863257 U CN206863257 U CN 206863257U
- Authority
- CN
- China
- Prior art keywords
- lens
- structure part
- screen
- combined type
- utility
- 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
Landscapes
- Lenses (AREA)
Abstract
The utility model system provides a kind of combined type VR lens combinations, is related to VR lens combinations.The utility model includes lens and screen, and lens include two first surface, second surface faces, and the optics significant surface of second surface is provided with Fresnel structure part and non-spherical structure part, and non-spherical structure part corresponds to visual acuity region in screen and set.Fresnel surface structure and non-spherical structure part are applied on one of face of lens by the utility model simultaneously, can effectively reduce the thickness of lens, and then reduce the volume of lens combination, moreover it is possible to substantially reduce the generation of veiling glare, improve the quality of imaging.
Description
Technical field
VR lens combinations are the utility model is related to, specifically disclose a kind of combined type VR lens combinations.
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, VR lens use non-spherical lens more, and the structure of non-spherical lens is as shown in Fig. 1 a；Due to differently
Area, crowd's interpupillary distance of different sexes differ, and to adapt to the crowd of different interpupillary distances, the aspherical external diameter of VR lens needs the ratio done
It is larger, meanwhile, VR systems have big visual field, the demand of short rear cut-off distance, and the focal length of lens usually requires to be made smaller, main flow
The VR focal lengths of lens are all in 40mm or so；Because aspherical external diameter needs to be made bigger, focal length needs to be made smaller, cause
The VR lens thicknesses of formation are bigger, increase the volume of whole VR systems.
To reduce the volume of VR systems, it is necessary to further reduce the thickness of VR lens, volume, the VR lens of prior art are adopted
With Fresnel Lenses, the structure of Fresnel Lenses is as shown in Fig. 1 b；Fresnel Lenses is relative to non-spherical lens, volume and again
Amount, which reduces more than 40%, thickness, reduces 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, a R angle between the working face and non-working surface of sawtooth be present, 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, as Fig. 3 b show the imaging effect of Fresnel Lenses.
Utility model content
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 utility model discloses a kind of combined type VR lens combinations, including lens and screen,
Lens include two first surface, second surface faces, and the optics significant surface of second surface is provided with Fresnel structure part and aspheric
Face structure division, non-spherical structure part correspond to visual acuity region in screen and set.
Further, the optics significant surface of first surface is non-spherical structure or planar structure.
Further, first surface is towards human eye, second surface screen-oriented.
Further, side of the second surface along lens axis is at least divided into two region first round profile surfaces, the second profiles
Face, first round profile surface are non-spherical structure part, and the second contoured surface is Fresnel structure part.
Further, first round profile surface is close to lens axis, and the second contoured surface is away from lens axis.
Human eye and screen are located at the both sides of lens respectively, and first surface is towards human eye, second surface screen-oriented, the second table
Face has been arranged alternately non-spherical structure part and Fresnel structure part, at the same non-spherical structure part correspond to screen vision it is quick
Sensillary area domain is set, and when the central area of screen is visual acuity region, setting non-spherical structure part corresponds to the center of screen
Domain, the image in visual acuity region is entered human eye by non-spherical structure part, can effectively eliminate veiling glare, improve imaging matter
Amount, while second surface is provided with Fresnel structure part, can effectively reduce the volume and thickness of lens.
The beneficial effects of the utility model are：The utility model discloses a kind of combined type VR lens combinations, by Fresnel surface
Structure and non-spherical structure part are applied on one of face of lens simultaneously, can effectively reduce the thickness of lens, and then
The volume of lens combination is reduced, 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 that Fresnel texture is formed in lens.
Fig. 3 is the imaging schematic diagram of non-spherical lens and Fresnel Lenses.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the structural representation of lens in the utility model embodiment one.
Fig. 6 is the light path schematic diagram of the utility model embodiment one.
Fig. 7 is the optical property schematic diagram of the utility model embodiment one.
Fig. 8 is the structural representation of lens in the utility model embodiment two.
Fig. 9 is the light path schematic diagram of the utility model embodiment two.
Figure 10 is the optical property schematic diagram of the utility model embodiment two.
Figure 11 is the structural representation of lens in the utility model embodiment three.
Figure 12 is the light path schematic diagram of the utility model embodiment three.
Figure 13 is the optical property schematic diagram of the utility model embodiment three.
Embodiment
For feature of the present utility model, technological means and the specific purposes reached, function can be further appreciated that, below
The utility model is described in further detail with embodiment with reference to accompanying drawing.
Referring to figs. 1 to Figure 13.
The utility model discloses a kind of combined type VR lens combinations, including lens 10 and screen 20, and lens 10 include first
12 two surface 11, second surface faces, the optics significant surface of second surface 12 are provided with Fresnel structure part and non-spherical structure
Part, non-spherical structure part correspond to visual acuity region in screen 20 and set, the vision system processing visual sensitivity of human eye
Highest region only has a small range, and visual acuity region just refers to the image-region that attractive eye notice is concentrated, vision
Sensitizing range affects quality evaluation of the people to whole image, even if the picture quality in the low region of human eye interest level is
Decline, perception of the human eye to the area image is affected by it smaller.
A face second surface 12 of lens 10 is provided with Fresnel structure part, can effectively reduce the thickness of lens 10
Degree, so as to reduce the volume of VR lens combinations, in addition, second surface 12 is additionally provided with non-spherical structure part, according to different VR
The visual acuity region of screen 20 in system, the visual acuity region of the position correspondence screen 20 of non-spherical structure part is set
Put, make the larger regional imaging quality of human eye notice high, veiling glare will not be produced.The utility model is reducing the volume of lens 10
Image quality can also be significantly improved simultaneously.
Embodiment one, with reference to figure 5, using the optical axis of lens 10 as line of demarcation, second surface 12 wraps in the side of the optical axis of lens 10
Include first round profile surface 121, the second contoured surface 122, third round profile surface 123, first round profile surface 121, the second contoured surface the 122, the 3rd
Contoured surface 123 is set gradually away from the optical axis of lens 10, and first round profile surface 121 and third round profile surface 123 are Fresnel structure portion
Point, the second contoured surface 122 is non-spherical structure part, and first surface 11 is non-spherical structure, first surface 11 towards human eye 30,
The screen-oriented 20 of second surface 12.
Table 1, the design parameter of embodiment one
Table 2, the aspheric design parameter of embodiment one
According to the parameter designing VR lens combinations of table 1, table 2, the imaging system index path of formation is with reference to figure 6, the light of imaging
Performance is learned with reference to figure 7, in Fig. 7 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 and drawn with the increase of visual field
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
It is designated as amount of distortion, ordinate is image height.Corresponding second contoured surface 122 in the visual acuity region of screen 20 in the present embodiment, second
Contoured surface 122 is arranged to non-spherical structure part, makes the imaging in visual acuity region will not produce veiling glare, and image quality is high, together
When the first round profile surface 121 and third round profile surface 123 be Fresnel structure part, can effectively reduce the volume and again of lens 10
Amount.
Embodiment two, with reference to figure 8, using the optical axis of lens 10 as line of demarcation, second surface 12 wraps in the side of the optical axis of lens 10
First round profile surface 121, the second contoured surface 122 are included, first round profile surface 121, the second contoured surface 122 are set successively away from the optical axis of lens 10
Put, first round profile surface 121 is non-spherical structure part, and the second contoured surface 122 is Fresnel structure part, and first surface 11 is non-
Spherical structure, first surface 11 is towards human eye 30, the screen-oriented 20 of second surface 12.
Table 3, the design parameter of embodiment two
Table 4, the aspheric design parameter of embodiment two
According to the parameter designing VR lens combinations of table 3, table 4, the imaging system light path of formation is with reference to figure 9, the optics of imaging
Performance with reference to figure 10, in Figure 10 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 and drawn with the increase of visual field
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
It is designated as amount of distortion, ordinate is image height.The visual acuity region of screen 20 corresponds to first round profile surface 121 in the present embodiment, and first
Contoured surface 121 is arranged to non-spherical structure part, makes the imaging in visual acuity region will not produce veiling glare, and image quality is high, together
When the second contoured surface 122 be Fresnel structure part, can effectively reduce the volume and weight of lens 10.
Embodiment three, with reference to figure 11, using the optical axis of lens 10 as line of demarcation, second surface 12 wraps in the side of the optical axis of lens 10
Include first round profile surface 121, the second contoured surface 122, third round profile surface 123, first round profile surface 121, the second contoured surface the 122, the 3rd
Contoured surface 123 is set gradually away from the optical axis of lens 10, and first round profile surface 121 and third round profile surface 123 are Fresnel structure portion
Point, the second contoured surface 122 is non-spherical structure part, and first surface 11 is planar structure, and first surface 11 is towards human eye 30, the
The screen-oriented 20 of two surface 12.
Table 5, the design parameter of embodiment three
Table 6, the aspheric design parameter of embodiment three
According to the parameter designing VR lens combinations of table 5, table 6, the imaging system index path of formation is with reference to figure 12, the light of imaging
Performance is learned with reference to figure 13, in Figure 13 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 and drawn with the increase of visual field
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
It is designated as amount of distortion, ordinate is image height.Corresponding second contoured surface 122 in the visual acuity region of screen 20 in the present embodiment, second
Contoured surface 122 is arranged to non-spherical structure part, makes the imaging in visual acuity region will not produce veiling glare, and image quality is high, together
When the first round profile surface 121 and third round profile surface 123 be Fresnel structure part, can effectively reduce the volume and again of lens 10
Amount.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent 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 first surface, the
Two surfaces Liang Ge faces, the optics significant surface of the second surface is provided with Fresnel structure part and non-spherical structure part, described
Aspheric component corresponds to visual acuity region in the screen and set.
2. a kind of combined type VR lens combinations according to claim 1, it is characterised in that the optics of the first surface has
Effect face 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 first surface is towards people
Eye, the second surface is towards the screen.
4. a kind of combined type VR lens combinations according to claim 1, it is characterised in that the second surface is along lens light
The side of axle is at least divided into two region first round profile surfaces, the second contoured surfaces, and the first round profile surface is the aspheric component,
Second contoured surface is the Fresnel structure part.
5. a kind of combined type VR lens combinations according to claim 4, it is characterised in that the first round profile surface is close to institute
Lens axis is stated, second contoured surface is away from the lens axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441986.5U CN206863257U (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720441986.5U CN206863257U (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206863257U true CN206863257U (en) | 2018-01-09 |
Family
ID=60822164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720441986.5U Active CN206863257U (en) | 2017-04-25 | 2017-04-25 | A kind of combined type VR lens combinations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206863257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896430A (en) * | 2017-04-25 | 2017-06-27 | 广东烨嘉光电科技股份有限公司 | A kind of combined type VR lens combinations |
| 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 |
-
2017
- 2017-04-25 CN CN201720441986.5U patent/CN206863257U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106896430A (en) * | 2017-04-25 | 2017-06-27 | 广东烨嘉光电科技股份有限公司 | A kind of combined type VR lens combinations |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108519660B (en) | Super wide-angle lens | |
| CN106338820B (en) | A kind of micro display eyepiece wears eyepiece system and wears visual device | |
| CN104898283B (en) | A kind of eyepiece system and head-mounted display | |
| CN106249399A (en) | One is worn eyepiece system and wears display device | |
| CN206863257U (en) | A kind of combined type VR lens combinations | |
| CN106896430A (en) | A kind of combined type VR lens combinations | |
| CN106291939B (en) | A kind of virtual reality display optical system | |
| CN105467565A (en) | High-and-low temperature infrared confocal high pixel little-distortion small-volume zooming optical system | |
| CN208506365U (en) | A kind of eyepiece optical system shown for micro display screen high definition | |
| TWM537665U (en) | Large-aperture wide-angle imaging lens | |
| US10078230B2 (en) | Eyeglass lenses with minimized edge visibility | |
| CN206411339U (en) | A kind of optical texture of reduction distortion and dispersion for virtual implementing helmet | |
| CN206863256U (en) | A kind of curved month type VR lens combinations | |
| CN106896431A (en) | A kind of curved month type VR lens combinations | |
| CN107450168B (en) | In dolly-out, dolly-back interchangeable tight shot | |
| CN109445065A (en) | 10-group 13-piece type lens structure for digital film projector | |
| CN105511062B (en) | A kind of optical imagery module | |
| CN110471165A (en) | One kind, which disappears to distort, minimizes high-resolution FISH EYE LENS OPTICS system | |
| CN105652445A (en) | Ultra-high-definition internal focusing virtual reality optical system | |
| CN206671688U (en) | A kind of near-eye display system and the helmet with the near-eye display system | |
| CN202916485U (en) | Small size, high resolution and infrared confocal optical system | |
| CN104965296A (en) | High-resolution day-and-night dual-use economical lens and focusing method thereof | |
| CN204855923U (en) | Dual -purpose economic money camera lens of high resolution day night | |
| CN108732720A (en) | A kind of object lens of large relative aperture fish eye lens can be applied to photography | |
| CN205485019U (en) | Optical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |