CN205539714U - A optical system for virtual reality equipment - Google Patents
A optical system for virtual reality equipment Download PDFInfo
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- CN205539714U CN205539714U CN201620075983.XU CN201620075983U CN205539714U CN 205539714 U CN205539714 U CN 205539714U CN 201620075983 U CN201620075983 U CN 201620075983U CN 205539714 U CN205539714 U CN 205539714U
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- China
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- lens
- optical system
- virtual reality
- image planes
- reality device
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Abstract
The utility model discloses an optical system for virtual reality equipment, including object plane and image planes, the object plane with image planes all lie in the front of camera lens, are equipped with diaphragm, first lens, second lens, third lens, fourth lens, the 5th lens and protection glass between object plane and the image planes in proper order, and first lens are the plastic prism of turn light path, and the second lens form veneer glass lens with third lens veneer, and the fourth lens are used for proofreading and correct spherical aberration and colour difference, and the 5th lens are used for controlling chief ray angle and balanced aberration, and fourth lens and the 5th lens are the plastic lens. The utility model discloses the visual angle is big, can reach 40 degrees, it has great play interpupillary distance and goes out the pupil footpath, and the camera lens goes out the pupil and is 9mm to the most preceding lens surface distance of camera lens, and the play pupil size of camera lens is 4.5mm for it is more sufficient to immerse the sense behind the VR equipment, and people's physiology and psychology are more comfortable when seeing the shadow.
Description
Technical field
The utility model relates to a kind of optical system, particularly relates to a kind of optical system for virtual reality device.
Background technology
Virtual reality (Viaual
Reality, be called for short VR) industry stepped into development fast track, at home consumer level hardware product numerous and confused volume production listing, but product quality is uneven, cause Consumer's Experience feedback spinning sensation serious, the problem that feeling of immersion is not enough, have a strong impact on VR industry sustainable health development.The main cause of these problems is the most suitably to meet human physiology and the solution of psychology, and suitably optical system is most important of which one ring.
The optical mirror slip that most manufacturers uses on VR equipment opticator, the simplest simple lens combines, or directly uses single eyeglass, it is achieved the amplification of picture, and therefore the VR equipment angle of visual field on market is little, and feeling of immersion is not enough；Aberration is big, has had a strong impact on the texture of whole picture, and Consumer's Experience is the most poor.
Drawbacks described above, is worth solving.
Summary of the invention
In order to overcome the deficiency of existing technology, the utility model provides a kind of optical system for virtual reality device.
Technical solutions of the utility model are as described below:
A kind of optical system for virtual reality device; including object plane and image planes; its characteristic is; described object plane and described image planes are respectively positioned on before camera lens; diaphragm, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and protection glass it is sequentially provided with between described object plane and described image planes
Described first lens are the plastic cement prism of turnover light path, described second lens are glued with described 3rd lens 3 forms glyglass lens, described 4th lens are used for spherical aberration corrector and aberration, described 5th lens are used for controlling chief ray angle and balance aberration, and described 4th lens and described 5th lens are plastic lens.
Further, described first lens are three prismatic, and two transmission planes are aspherical, and described 4th lens are meniscus lens, and its concave surface is towards described image planes, and described 5th lens are meniscus lens, and its concave surface is towards described image planes.
Further, described second lens and described 3rd lens face type are sphere, and described 4th lens and described 5th lens face type are aspherical.
Further, described first lens have positive light coke, described second lens have negative power, described 3rd lens have positive light coke, described second lens have positive focal power with the balsaming lens of described 3rd lens composition, described 4th lens have negative power, and described 5th lens have positive light coke.
Further, in the turnover light path of described first lens, its plane of refraction is aspherical, and reflecting surface is plane.
Further, in the balsaming lens being made up of described second lens and described 3rd lens, described second lens are high index of refraction, high abbe number material, and described 3rd lens are low-refraction, low abbe number material.
Further, refractive index Nd of described second lens meets 1.85 ＜ Nd ＜ 1.95, and its abbe number Vd meets 18 ＜ Vd ＜ 25.
Further, refractive index Nd of described 3rd lens meets 1.7 ＜ Nd ＜ 1.8, its abbe number Vd and meets 45 ＜ Vd ＜ 55.
According to the utility model of such scheme, it has the beneficial effects that, the utility model visual angle is big, can reach 40 degree；It has bigger emergent pupil away from emergent pupil aperture, camera lens emergent pupil to camera lens front lens surface distance is 9mm, and the emergent pupil size of camera lens is 4.5mm, and after VR equipment, feeling of immersion is more sufficient, and during viewing, physiology and the psychology of people are more comfortable；The utility model is used by the collocation of glass, plastic material so that easy meeting processing technology, uses lens numbers few, and the aberration of system is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is MTF of the present utility model figure.
In the drawings, the 1, first lens；2, the second lens；3, the 3rd lens；4, the 4th lens；5, the 5th lens；6, protection glass；7, diaphragm；8, image planes.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the utility model is conducted further description by embodiment:
As shown in Figure 1; a kind of optical system for virtual reality device; including object plane and image planes 8; object plane and image planes 8 are respectively positioned on before camera lens, are sequentially provided with diaphragm the 7, first lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens 5 and protection glass 6 between object plane and image planes 8.
First lens 1 are the plastic cement prism of turnover light path, and its similar and prism, two transmission planes are aspherical, have the effect of converging beam, in order to whole system is done little, and its plane of refraction is aspherical, and reflecting surface is plane.
Second lens 2 and the 3rd lens 3 glued formation glyglass lens, be mainly used in correcting chromatic aberration so that the solution picture of whole system is substantially improved.Wherein the second lens 2 and 3 types of the 3rd lens are sphere, additionally, second lens 2 are high index of refraction, high abbe number material, 3rd lens 3 are low-refraction, low abbe number material, preferably, second lens 2 meet 1.85 ＜ Nd ＜ 1.95,18 ＜ Vd ＜ 25；3rd lens 3 meet 1.7 ＜ Nd ＜ 1.8,45 ＜ Vd ＜ 55.Here Nd refers to the refractive index of lens, and Vd refers to the abbe number of lens.
4th lens 4 are for spherical aberration corrector and aberration, and it is meniscus lens, and its concave surface is towards described image planes；5th lens 5 are used for controlling chief ray angle and balance aberration, and it is meniscus lens, and its concave surface is towards described image planes.4th lens 4 and the 5th lens 5 are plastic lens, and its mirror type is aspherical so that whole system has the less curvature of field and distortion, and beam exit angle also is able to mate photo-sensitive cell simultaneously.
First lens 1 have positive light coke, and the second lens 2 have negative power, and the 3rd lens 3 have positive light coke, and the balsaming lens of the second lens 2 and the 3rd lens 3 composition has positive focal power, and the 4th lens 4 have negative power, and the 5th lens 5 have positive light coke.By reasonably distributing focal power so that optical system imaging quality better, tolerance are good, lens handling ease.
As in figure 2 it is shown, MTF figure (MTF i.e. optical modulation function) that it is the utility model optical system.The utility model visual angle is big, reaches 40 degree；Pupil footpath is big, reaches 4.5mm, and after VR equipment, feeling of immersion is more sufficient, and during viewing, physiology and the psychology of people are more comfortable.The present invention is used by the collocation of glass, plastic material, wherein the first lens 1 turn to prism for plastic cement, second lens 2 and the 3rd lens 3 are glued glass lens, 4th lens 4 and the 5th lens 5 are the plastic lens of curved month type, such lens combination makes processing technology easy, use lens numbers is few, and the aberration of system is good.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, and all these modifications and variations all should be belonged to the protection domain of the utility model claims.
Above in conjunction with accompanying drawing, the utility model patent is carried out exemplary description; obviously the realization of the utility model patent is not subject to the restrictions described above; if the various improvement that the method design that have employed the utility model patent is carried out with technical scheme; or the most improved design by the utility model patent and technical scheme directly apply to other occasion, all in protection domain of the present utility model.
Claims (8)
1. the optical system for virtual reality device; including object plane and image planes; its characteristic is; described object plane and described image planes are respectively positioned on before camera lens; diaphragm, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and protection glass it is sequentially provided with between described object plane and described image planes
Described first lens are the plastic cement prism of turnover light path, and described second lens are glued with described 3rd lens 3 forms glyglass lens, and described 4th lens and described 5th lens are plastic lens.
Optical system for virtual reality device the most according to claim 1, it is characterized in that, described first lens are three prismatic, and two transmission planes are aspherical, described 4th lens are meniscus lens, its concave surface is towards described image planes, and described 5th lens are meniscus lens, and its concave surface is towards described image planes.
Optical system for virtual reality device the most according to claim 1, it is characterised in that described second lens and described 3rd lens face type are sphere, and described 4th lens and described 5th lens face type are aspherical.
Optical system for virtual reality device the most according to claim 1, it is characterized in that, described first lens have positive light coke, described second lens have negative power, described 3rd lens have positive light coke, described second lens have positive focal power with the balsaming lens of described 3rd lens composition, and described 4th lens have negative power, and described 5th lens have positive light coke.
Optical system for virtual reality device the most according to claim 1, it is characterised in that in the turnover light path of described first lens, its plane of refraction is aspherical, and reflecting surface is plane.
Optical system for virtual reality device the most according to claim 1, it is characterized in that, in the balsaming lens being made up of described second lens and described 3rd lens, described second lens are high index of refraction, high abbe number material, and described 3rd lens are low-refraction, low abbe number material.
Optical system for virtual reality device the most according to claim 6, it is characterised in that refractive index Nd of described second lens meets 1.85 ＜ Nd ＜ 1.95, its abbe number Vd meets 18 ＜ Vd ＜ 25.
Optical system for virtual reality device the most according to claim 6, it is characterised in that refractive index Nd of described 3rd lens meets 1.7 ＜ Nd ＜ 1.8, its abbe number Vd and meets 45 ＜ Vd ＜ 55.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075983.XU CN205539714U (en) | 2016-01-26 | 2016-01-26 | A optical system for virtual reality equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620075983.XU CN205539714U (en) | 2016-01-26 | 2016-01-26 | A optical system for virtual reality equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205539714U true CN205539714U (en) | 2016-08-31 |
Family
ID=56770014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620075983.XU Expired - Fee Related CN205539714U (en) | 2016-01-26 | 2016-01-26 | A optical system for virtual reality equipment |
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| Country | Link |
|---|---|
| CN (1) | CN205539714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527713A (en) * | 2016-01-26 | 2016-04-27 | 深圳市谛源光科有限公司 | Optical system used for virtual reality device |
-
2016
- 2016-01-26 CN CN201620075983.XU patent/CN205539714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527713A (en) * | 2016-01-26 | 2016-04-27 | 深圳市谛源光科有限公司 | Optical system used for virtual reality device |
| CN105527713B (en) * | 2016-01-26 | 2018-05-01 | 深圳市谛源光科有限公司 | A kind of optical system for virtual reality device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170126 |