CN105652445B - A kind of ultra high-definition, interior focusing virtual reality optical system - Google Patents
A kind of ultra high-definition, interior focusing virtual reality optical system Download PDFInfo
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- CN105652445B CN105652445B CN201610121165.3A CN201610121165A CN105652445B CN 105652445 B CN105652445 B CN 105652445B CN 201610121165 A CN201610121165 A CN 201610121165A CN 105652445 B CN105652445 B CN 105652445B
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- aspherical
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The invention discloses a kind of ultra high-definitions, interior focusing virtual reality optical system, including diaphragm (100), the first lens (1) are equipped with successively backward from the diaphragm (100), second lens (2), 3rd lens (3), 4th lens (4) and display screen (200), first lens (1) are lenticular non-spherical lens, second lens (2) are falcate non-spherical lens, 3rd lens (3) are lenticular non-spherical lens, 4th lens (4) are falcate non-spherical lens, and first lens (1) are adhesively-bonded together to form balsaming lens group (300) with the second lens (2) with optical glue, and cemented surface bends towards diaphragm (100).The configuration of the present invention is simple, clarity is high, and field of view angle is big, applied widely.
Description
【Technical field】
The present invention relates to a kind of optical system, more specifically a kind of ultra high-definition, interior focusing virtual reality optical system.
【Background technology】
Virtual reality (Virtual Reality) is to develop rising stage, the principle of VR glasses (virtual reality glasses) at present
Similar to magnifying glass, exactly picture is amplified, human eye perceives this picture being exaggerated.Current main product is single piece type,
It can realize 3D effect, but clarity is poor, and spinning sensation is stronger when watching 3D images.It is very few to be confined to the parameter that can optimize, mirror
The image quality of piece is difficult to improve, such as this kind of aberration of dispersion distortion, and single eyeglass is almost what can not be eliminated, for this purpose, lens set
Scheme be eyeglass in following VR helmets (eyeglass becomes VR glasses on the helmet) development trend.
Therefore, the present invention be based on more than deficiency and generate.
【The content of the invention】
The present invention seeks to overcome the deficiencies in the prior art, a kind of simple in structure, clarity height, field of view angle are provided
Greatly, ultra high-definition applied widely, interior focusing virtual reality optical system.
The present invention is achieved by the following technical solutions：
A kind of ultra high-definition, interior focusing virtual reality optical system, it is characterised in that：Including diaphragm 100, from the diaphragm
100 are equipped with the first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4 and display screen 200 successively backward, and described the
One lens 1 are lenticular non-spherical lens, and second lens 2 are falcate non-spherical lens, and the 3rd lens 3 are
Lenticular non-spherical lens, the 4th lens 4 are falcate non-spherical lens, and first lens 1 and second are saturating
Mirror 2 is adhesively-bonded together to form balsaming lens group 300 with optical glue, and cemented surface concaves towards diaphragm 100.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：First lens 1
For focal power for just, the focal powers of second lens 2 be that the focal power of the 3rd negative, described lens 3 is the just the described the 4th
The focal power of lens 4 is negative.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：The balsaming lens group
300 focal power is and fixed compared with display screen 200 for just；3rd lens 3 is positive light cokes and can show relatively
The lens that display screen 200 moves back and forth；4th lens 4 are negative power and fixed compared with display screen 200
Mirror.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：From diaphragm 100 to display screen
200 directions, the first face of first lens 1 are that hyperbola is aspherical, the second face is that parabola is aspherical；Described second
First face of lens 2 is that parabola is aspherical, the second face is oval aspherical；First face of the 3rd lens 3 is hyperbolic
Line is aspherical, the second face is aspherical for hyperbola；First face of the 4th lens 4 is that parabola is aspherical, the second face is
It is oval aspherical.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：Second lens, 2 He
4th lens 4 concave towards 100 one side of diaphragm.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：The object of the optical system
Away from for -125mm~-4000mm.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：The diaphragm of the optical system
100 and first lens 1 distance be fixed value 14mm.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：First lens 1,
Two lens 2, the 3rd lens 3 and the 4th lens 4 are plastic aspheric lens.
Ultra high-definition, interior focusing virtual reality optical system as described above, it is characterised in that：Described first
Lens 1, the second lens 2, the aspherical surface shape of the 3rd lens 3 and the 4th lens 4 meet below equation： In formula, parameter
C is the curvature corresponding to radius, and y is radial coordinate, and unit is identical with length of lens unit, and k is circular cone whose conic coefficient；
When k-factor is less than -1, the face shape curve of lens is hyperbola, and when k-factor is equal to -1, the face shape curve of lens is parabolic
Line；When k-factor is between -1 to 0, the face shape curve of lens is ellipse, when k-factor is equal to 0, the face shape curve of lens
For circle, when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8Asphericity coefficient is represented respectively.
Compared with prior art, the present invention has the following advantages：
1st, field angle of the invention is very big, and field angle can reach 120 °, and 3D effect becomes apparent from, and has body to face when watching image
The perfect impression in its border.
2nd, clarity of the invention is very high, and picture is uniform, and no matter how glasses rotate, and can see entire picture clearly
Face.
3rd, the present invention is suitable for total experience person, can adjust diopter, any user can see by adjusting diopter
Understand picture.
4th, present invention distortion very little, for common one piece construction in order to pursue big field angle, distortion is all very big, has on the market
Apparent picture deforms, and is not substantially deformed in the entire picture of the present invention.
5th, for eyeglass of the invention all using glass lens, system is very light, and has higher permeability.
6th, the present invention can reasonably distribute magnifying power, and distort very little, and after image planes amplification, the sense of reality is guaranteed, and more meets
The requirement of virtual reality.
【Description of the drawings】
Fig. 1 is optical system diagram of the present invention.
【Specific embodiment】
The invention will be further described below in conjunction with the accompanying drawings：
A kind of ultra high-definition, interior focusing virtual reality optical system, including diaphragm 100, from the diaphragm 100 backward successively
Equipped with the first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4 and display screen 200, first lens 1 are double
Convex non-spherical lens, second lens 2 are falcate non-spherical lens, and the 3rd lens 3 are lenticular aspheric
Face lens, the 4th lens 4 are falcate non-spherical lens, and first lens 1 and the second lens 2 use optical cement
Water is adhesively-bonded together to form balsaming lens group 300, and cemented surface bends towards diaphragm 100.
Diaphragm 100 is arranged at 1 front 14mm positions of the first lens, it simulates the pupil size of human eye, and display screen 200 is sent
Light after the 4th lens 4, the 3rd lens 3, the second lens 2, the first lens 1 and diaphragm 100 into human eye, actual use
When, light is inversely propagated.Diaphragm 100, which is arranged on 1 front 14mm of the first lens and is in, ensures entire optical system high quality
It can ensure that optical system structure is compact while imaging.
2 formation balsaming lens group 300 glued together of first lens 1 and the second lens, can be good at correcting each on axis
Kind aberration.In addition, from diaphragm 100 toward 200 direction of display screen, the first face of the first lens 1 is aspherical using hyperbola, and light exists
There is apparent turnover at this aspherical place so that can smoothly enter optical system by all light of the aperture of the diaphragm, also effectively
The size for reducing eyeglass behind, reduce optical system volume.
2 formation balsaming lens group 300 glued together of first lens 1 and the second lens, and cemented surface bends towards diaphragm 100,
The first auxiliary light is not only made to have good trend, but also spherical aberration can be corrected and sine is poor, using the characteristic of balsaming lens,
The aberration of optical system has been corrected well.Meanwhile the 3rd lens 3 and the 4th lens 4 are used separately in optical system, it can be very
High-resolution is realized in the curvature of field of good correction optical system and distortion.
Entire optical system is used cooperatively using simple lens and balsaming lens group, not only eliminates the color of entire optical system
Difference also balances the aberration of entire optical system well so that the image plane center and edge of optical system have quite high
Resolution ratio.
First lens 1, the second lens 2, the 3rd lens 3 and the 4th lens 4 are plastic aspheric lens.All
Using glass lens, system is very light, and has higher permeability.Effective control cost reduces optical system volume, subtracts
The weight of light optical system.
The focal power of first lens 1 is just, the focal power of second lens 2 is negative, and described the 3rd is saturating
The focal power of mirror 3 is just, the focal power of the 4th lens 4 is negative.First lens 1 are just saturating for plastic aspherical element
Mirror so that can smoothly enter entire optical system by all light in 100 aperture of diaphragm, realize big field angle, visual field
Angle can reach 120 °, realize apparent 3D effect, the first lens 1 mainly assume responsibility for image magnification and image throws remote effect.Institute
Low-refraction optical plastic may be employed in the first lens 1 stated and the 3rd lens 3.Second lens 2 and the 4th lens 4 are rolled over using high
Penetrate the optical plastic of rate.
The focal power of the balsaming lens group 300 is and fixed compared with display screen 200 for just；Described the 3rd
The lens that lens 3 move back and forth for positive light coke and the opposite display screen 200 of energy；4th lens 4 are negative power and phase
For 200 fixed lens of display screen.Balsaming lens group 300 is fixed with respect to display screen 200, and the 3rd lens 3 can be with
It is moved back and forth with respect to display screen 200, and 3 opposite display screen 200 of the 4th lens is fixed.Therefore, it is former using eyes imaging
Reason as myopia user in use, picture need to be moved to eyes direction, adjusts the position of the 3rd lens 3, compensates and caused by myopia
Picture moving amount so that system can be focused on display screen 200 always.Using light path principle, display screen 200 is sent
Light also can enter human eye, focus on the retina, the people of different diopters, as long as the 3rd lens 3 are adjusted to suitable
Position, it becomes possible to see picture, realize focusing inside optical system, diopter adjustment, suitable for total experience person, improve city
Product on face is only used for the limitation of twenty-twenty vision user.
From diaphragm 100 to 200 direction of display screen, the first face of first lens 1 is hyperbola is aspherical, the second face
It is aspherical for parabola；First face of second lens 2 is that parabola is aspherical, the second face is oval aspherical；It is described
The first face of the 3rd lens 3 be that hyperbola is aspherical, the second face is that hyperbola is aspherical；The first of 4th lens 4
Face is that parabola is aspherical, the second face is oval aspherical.Such structure design clarity is very high, and picture is uniform, abnormal
Become very little, image quality is high.
Second lens 2 and the 4th lens 4 are towards 100 curving of diaphragm, and distort very little, after image planes amplification, really
Sense is guaranteed, and more meets the requirement of virtual reality.
The object distance of the optical system is -125mm~-4000mm.
First lens 1, the second lens 2, the aspherical surface shape of the 3rd lens 3 and the 4th lens 4 meet with
Lower equation： In formula
In, parameter c is the curvature corresponding to radius, and y is radial coordinate, and unit is identical with length of lens unit, and k is the secondary song of circular cone
Linear system number；When k-factor is less than -1, the face shape curve of lens is hyperbola, when k-factor is equal to -1, the face shape curve of lens
For parabola；When k-factor is between -1 to 0, the face shape curve of lens is ellipse, when k-factor is equal to 0, the face of lens
Shape curve is circle, and when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8Asphericity coefficient is represented respectively.
Claims (4)
1. a kind of ultra high-definition, interior focusing virtual reality optical system, it is characterised in that：Including diaphragm (100), from the diaphragm
(100) the first lens (1), the second lens (2), the 3rd lens (3), the 4th lens (4) and display screen are equipped with successively backward
(200), first lens (1) are lenticular non-spherical lens, and second lens (2) are aspherical for falcate
Mirror, the 3rd lens (3) they are lenticular non-spherical lens, and the 4th lens (4) are falcate non-spherical lens, and
First lens (1) are adhesively-bonded together to form balsaming lens group (300) with the second lens (2) with optical glue, and glued
Face concaves towards diaphragm (100), the focal powers of first lens (1) for just, the focal powers of second lens (2) be it is negative,
The focal power of 3rd lens (3) is just, the focal power of the 4th lens (4) is negative, from diaphragm (100) to display
Shield (200) direction, the first face of first lens (1) is that hyperbola is aspherical, the second face is that parabola is aspherical；It is described
The first face of the second lens (2) be that parabola is aspherical, the second face is oval aspherical；The of 3rd lens (3)
It is that hyperbola is aspherical, the second face is that hyperbola is aspherical on one side；First face of the 4th lens (4) is parabola aspheric
To be oval aspherical, second lens (2) and the 4th lens (4) concave towards diaphragm (100) one side, described for face, the second face
The object distance of optical system is -125mm~-4000mm, and the diaphragm (100) and the distance of the first lens (1) of the optical system are
Fixed value 14mm.
2. ultra high-definition according to claim 1, interior focusing virtual reality optical system, it is characterised in that：The gluing
The focal power of lens group (300) is and fixed compared with display screen (200) for just；3rd lens (3) are positive light focus
The lens that degree and the opposite display screen (200) of energy move back and forth；4th lens (4) are for negative power and compared with display screen
(200) fixed lens.
3. ultra high-definition according to claim 1, interior focusing virtual reality optical system, it is characterised in that：Described first
Lens (1), the second lens (2), the 3rd lens (3) and the 4th lens (4) are plastic aspheric lens.
4. ultra high-definition according to claim 1, interior focusing virtual reality optical system, it is characterised in that：Described first
Lens (1), the second lens (2), the aspherical surface shape of the 3rd lens (3) and the 4th lens (4) meet below equation：Z=
cy2/+α1y2+α2y4+α3y6+α4y8+α5y10+α6y12+α7y14+α8y16, in formula, parameter c
For the curvature corresponding to radius, y is radial coordinate, and unit is identical with length of lens unit, and k is circular cone whose conic coefficient；
When k-factor is less than -1, the face shape curve of lens is hyperbola, and when k-factor is equal to -1, the face shape curve of lens is parabolic
Line；When k-factor is between -1 to 0, the face shape curve of lens is ellipse, when k-factor is equal to 0, the face shape curve of lens
For circle, when k-factor is more than 0, the face shape curve of lens is oblateness；α1To α8Asphericity coefficient is represented respectively.
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| CN201610121165.3A CN105652445B (en) | 2016-03-03 | 2016-03-03 | A kind of ultra high-definition, interior focusing virtual reality optical system |
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| CN201610121165.3A CN105652445B (en) | 2016-03-03 | 2016-03-03 | A kind of ultra high-definition, interior focusing virtual reality optical system |
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| CN105652445B true CN105652445B (en) | 2018-06-01 |
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| CN106842590B (en) * | 2017-03-28 | 2023-07-14 | 中山联合光电科技股份有限公司 | Ultrashort-focus projection optical system |
| CN108319015B (en) * | 2017-04-21 | 2023-02-10 | 北京耐德佳显示技术有限公司 | Retina projection type near-to-eye display device |
| CN109643024A (en) * | 2017-08-15 | 2019-04-16 | 深圳市柔宇科技有限公司 | Wear display equipment |
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| CN200976066Y (en) * | 2006-06-23 | 2007-11-14 | 贾怀昌 | Optical system of four-piece structure for lens display apparatus |
| US8736967B1 (en) * | 2010-11-19 | 2014-05-27 | SA Photonics, Inc. | Anamorphic eyepiece |
| JP5851157B2 (en) * | 2011-08-25 | 2016-02-03 | リコー光学株式会社 | Eyepiece lens system and image observation apparatus |
| CN204360008U (en) * | 2014-12-17 | 2015-05-27 | 青岛歌尔声学科技有限公司 | A kind of micro-display eyepiece, wear eyepiece system and wear visual device |
| CN104635333B (en) * | 2015-01-26 | 2017-05-31 | 青岛歌尔声学科技有限公司 | A kind of eyepiece, wear eyepiece system and micro display helmet |
| CN105278109B (en) * | 2015-07-10 | 2017-11-28 | 深圳纳德光学有限公司 | Big angle of visual field eyepiece optical system |
| CN105137590B (en) * | 2015-09-28 | 2017-09-12 | 深圳纳德光学有限公司 | Big angle of visual field eyepiece optical system |
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