CN106371212B - The VR/MR optical system and VR/MR equipment of dual element convex-concave eyeglass - Google Patents
The VR/MR optical system and VR/MR equipment of dual element convex-concave eyeglass Download PDFInfo
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- CN106371212B CN106371212B CN201610932896.6A CN201610932896A CN106371212B CN 106371212 B CN106371212 B CN 106371212B CN 201610932896 A CN201610932896 A CN 201610932896A CN 106371212 B CN106371212 B CN 106371212B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 33
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Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention provides a kind of VR/MR optical systems of dual element convex-concave eyeglass, including the lens module as composed by the first convex lens close to diaphragm and the second concavees lens being arranged with the first convex lens mirror spacing；First convex lens is positive focal length lenses, and the second concavees lens are negative focal length lens；First convex lens surface opposite with diaphragm is spherical surface, and radius of curvature is 18mm < R1 < 21mm, and the first convex lens surface opposite with the second concavees lens is that hyperbola is aspherical；Second concavees lens surface opposite with the first convex lens is that hyperbola is aspherical, and the second concavees lens surface opposite with screen is spherical surface, radius of curvature 24mm < R2 < 27mm.The present invention also provides the VR/MR equipment with above-mentioned optical system, it efficiently solves current virtual reality or immerses the existing distortion of the analog machine and mixed reality equipment opticator for feeling strong and dispersion, the problem for experiencing difference, can reach best user experience effect.
Description
Technical field
The invention belongs to technical field of virtual reality more particularly to a kind of VR/MR optics with dual element convex-concave eyeglass
System and virtual reality/mixed reality equipment with above-mentioned optical system.
Background technique
Virtual reality (Virtual Reality, abbreviation VR) is the new and high technology occurred in recent years, is to utilize computer mould
It is quasi- it is generating, can interact, the virtual environment of vision with feeling of immersion, be a kind of interactive three-dimensional dynamic of Multi-source Information Fusion
The system emulation of what comes into a driver's and entity behavior provides simulation of the user about sense organs such as vision, the sense of hearing, tactiles, allow user such as
It is general with being personally on the scene, the things in three-dimensional space can be observed in time, without limitation.
Mixed reality (Mix reality, abbreviation MR) is the new visualization ring for merging reality and virtual world and generating
Border.Physics and digital object coexist in new visible environment, and real-time interactive.
VR is pure virtual digit picture, and MR is digitlization reality plus virtual digit picture.MR technology can pass through different journeys
Degree exposure camera shooting, the scene that reduction human eye be can't see in certain circumstances, still, MR is related to retinal projection's technology.
Virtual reality technology flourished in recent years, and electronic equipment obtains ambient image by camera, by virtual scene
Personage and scene be overlapped composograph, the personage for making user experience virtual scene places oneself in the midst of in actual environment.But
The analog machine and mixed reality equipment of feeling strong are immersed for the opticator of virtual reality in other words and require opticator
Processing.There is no the vision of opticator to cheat, naked eye scheme can't temporarily be applied to consumer level market.Computer vision is temporary
When still can be only achieved 3-D effect by optical treatment.Currently, in the existing optical system in market, eyeglass material is generally adopted
With plastics, such optics module can cause dispersion serious, and the central area of image and the serious difference of fringe region aberration rate are led
Scalloping, anamorphose, edge blurry are caused, while the spinning sensation and nausea of user can be caused, user experience is deteriorated.
Therefore, it is necessary to improve drawbacks described above.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of dual element convex-concave eyeglass is provided firstly
VR/MR optical system can solve current virtual reality or immerse the analog machine and mixed reality equipment opticator for feeling strong
The problem of existing distortion and dispersion, experience difference.
The VR/MR optical system of dual element convex-concave eyeglass provided by the invention, including by the first convex lens close to diaphragm
With with first convex lens in spacing setting the second concavees lens composed by lens module；First convex lens is positive coke
Away from lens, second concavees lens are negative focal length lens；First convex lens surface opposite with diaphragm is the spherical surface of evagination,
Its radius of curvature is 18mm < R1 < 21mm, and first convex lens surface opposite with second concavees lens is the hyperbolic of evagination
Line is aspherical；Second concavees lens surface opposite with first convex lens be evagination hyperbola spherical surface, described second
The concavees lens surface opposite with screen is the spherical surface of indent, radius of curvature 24mm < R2 < 27mm.
As a kind of preferred mode of the invention, abbe number >=50 of first convex lens, first convex lens
Difference >=0 between the abbe number of mirror and the abbe number of second concavees lens.
As a kind of preferred mode of the invention, the focal length f1 of first convex lens and the focal length f2 of the second concavees lens
Between ratio are as follows: -1.0 < f1/f2 < 0.8.
As a kind of preferred mode of the invention, the center thickness T1 of first convex lens and second concavees lens
Center thickness T2 between ratio are as follows: 3 < T1/T2 < 4.
Further, between the center thickness T1 of first convex lens and the center thickness T2 of second concavees lens
Ratio T1/T2=3.5.
As a kind of preferred mode of the invention, the centre of surface of first convex lens opposite with the diaphragm with
The distance between diaphragm L1 is 4.5-5.5mm.
As a kind of preferred mode of the invention, the airspace of first convex lens and second concavees lens is
L2 is 12-14mm.
As a kind of preferred mode of the invention, second concave lens surface center opposite with the screen and screen
The distance between curtain L3 is 10-12mm.
The present invention also provides a kind of VR/MR equipment, the VR/MR optics with dual element convex-concave eyeglass described above
System.
The VR/MR optical system and VR/MR equipment of dual element convex-concave eyeglass provided by the invention, can be by single eyeglass originally
Focal power is distributed on two optical elements, can be made up due to the inaccessiable optimal experience effect of software and be carried out secondary school
Just, distortion and dispersion is really made to be adjusted to minimize, efficiently solve computer pretreatment be also difficult to the spinning sensation completed and
Uncomfortable problem is worn for a long time.Meanwhile recessed lens optical system reduces sighting distance after lordosis of the invention, makes optical system
Total length be substantially reduced, computer graphic deformation is small, and edge is more preferably smooth, and 3-D stereoscopic effect is more life-like, to reach most
Good user experience effect.
The present invention is not only applicable to virtual reality and mixed reality field, at the same can also be applied to microcosmic observation field and
Analog machine field.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is the VR/MR optical system diagrammatic cross-section of dual element convex-concave eyeglass provided in an embodiment of the present invention；
Fig. 2 is the VR/MR optical system light path figure of dual element convex-concave eyeglass provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is non-limiting example embodiment,
And the feature shown in attached drawing be not required it is drawn to scale.Given example is only intended to be conducive to explain the present invention, should not be by
It is interpreted as the restriction to embodiment disclosed by the invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.
It should also be noted that, embodiment disclosed by the invention in, " first ", " second ", " third " " the 4th " and
"upper", " in ", the similar term such as "lower", be only each other relative concept distinguish different component part or with product just
Being often used state is reference, is not offered as any sequence, quantity and importance, it should not be assumed that be restrictive.
Fig. 1 and Fig. 2 are please referred to, a kind of VR/MR optical system of dual element convex-concave eyeglass provided in an embodiment of the present invention is answered
For in virtual/mixed reality system or/and virtual/mixed reality equipment, be configured as carrying out the light that display screen issues at
Picture, including by close to diaphragm 3, (for illustrated embodiment of the present invention applied to wear-type in virtual/mixed reality equipment, diaphragm 3 is people
Eye pupil hole site relates separately to the left eye and right eye of user) the first convex lens 1 and parallel with first convex lens 1
Dual element meniscus mould group composed by the second concavees lens 2 in spacing setting, the coke wherein first convex lens 1 is positive
Image zoom function is provided, while preferably keeping the spatial resolution of eyeglass for focusing human eye collimated light away from lens.This
One convex lens 1 first surface 11 opposite with diaphragm 3 is the spherical surface of evagination, and radius of curvature is 18mm < R1 < 21mm, described the
One convex lens 1 second surface 12 opposite with second concavees lens 2 is that the hyperbola of evagination is aspherical；Second concavees lens
2 be negative focal length lens, both can be used for program for correcting phase difference, so that distortion and dispersion are adjusted to minimum, enables the angle of beam exit
Enough preferable matching photosensitive elements, while can improve visual effect with further expansion field of view angle, be allowed to the view in people
Clearly image is formed on film.The second concavees lens 2 third surface 21 opposite with first convex lens 1 is using the double of evagination
Curve aspherical shape, i.e. the first convex lens 1 are that hyperbola is aspherical with the two opposite surfaces of the second concavees lens 2, and described
Two concavees lens 2, fourth surface 22 opposite with screen 4 is the spherical surface of indent, radius of curvature 24mm < R2 < 27mm.The screen 4
Can be mobile phone screen be also electronic equipment embed screen.PMMA and cyclic olefin polymerization resin can be selected in two lens materials,
It is low with the excellent transparency, spatial stability and light conductibility, dispersive power.
The VR/MR optical system that above-mentioned dual element convex-concave lens combination provided by the invention is formed, by 1 He of the first convex lens
The combination of second concavees lens 2, and configured using different curved surfaces, it on the one hand can be used by software application development person in user soft
Predistortion processing is carried out in part in advance, for example adjusts the distortion curvature of barrel-type distortion or pincushion distortion in advance, makes pretreatment,
On the other hand it is made up by increasing by the second concavees lens 2 since the inaccessiable optimal experience effect of software carries out secondary correction,
Both it is high to have solved the insurmountable aberration rate of single eyeglass, the big problem of dispersion, while also solving the optics that software can not be handled
Problem --- if edge image is unsmooth, the strong problem of spinning sensation really makes distortion and dispersion be adjusted to minimize, to reach
To best user experience effect.Moreover, two surfaces of two lens of the invention are by a spherical surface and an aspherical institute
Composition, mutually has complementarity, can reach higher image quality and wider view in limited optical system space
Angle.Further, it is more difficult to fabricate than spherical mirror surface due to aspherical mirror, cost is also with height, but yield is lower.Cause
This, the difficulty that design scheme of the invention also may make camera lens to manufacture is greatly reduced, and the aspherical cost of hyperbola is also relatively cheap,
Yield is higher.
In the specific structure design of the present invention, abbe number >=50 of first convex lens, first convex lens 1
Difference >=0 between abbe number and the abbe number of second concavees lens 2.Dispersion can be made to be adjusted to minimize, at image quality
It measures, image definition is high.
Referring again to Fig. 1 and Fig. 2, in the specific structure design of the present invention, first convex lens 1 and the second concavees lens 2
Outwardly-facing surface is spherical surface, and it is non-curved that first convex lens 1 and the opposite surface of the second concavees lens 2 are all made of hyperbola,
Its aspherical surface shape is using the common hyperbola building of current optical field.The focal length f1 of first convex lens 1 and
Ratio between the focal length f2 of two concavees lens 2 are as follows: -1.2 < f1/f2 < 0.8, preferably f1/f2=-1.0.Above-mentioned first convex lens 1
Focal length and the second concavees lens 2 focal length parameter match, both reliably ensure that the second concavees lens 2 can preferably realize its school
Orthofunction, while also under conditions of meeting optical system space structure and image quality, further expansion field of view angle (see
Fig. 2), visual effect is enhanced.
Referring again to Fig. 1 and Fig. 2, in the present invention specific structure design, the center thickness T1 of first convex lens 1 with
Ratio between the center thickness T2 of second concavees lens 2 are as follows: 2.5 < T1/T2 < 4.25, preferably T1/T2=3.5.Meanwhile described
The ratio between airspace TL between one convex lens 1 and 2 overall thickness of the second concavees lens and the first convex lens 1 and the second concavees lens 2 are as follows:
0.5<(T1+T2)/TL<0.85.The setting of above-mentioned parameter, according to air between two lens surface shapes, thickness and two lens
It is spaced preferred disposition, distortion and dispersive power is substantially reduced, both ensure that lens
Image quality, and the fringe field of view and field of view angle of human eye are expanded, while entire VR/MR optical system size can be made to be unlikely to
It is excessive, avoid the sense of discomfort generated due to thick and heavy.
Specifically, the 1 center thickness T1 of the first convex lens is 7.5-8.5mm, preferably 8.0mm；Second concavees lens 2
Center thickness T2 is 2-2.5mm, preferably 2.3mm；12 center of second surface of first convex lens 1 and second concavees lens
Distance TL (airspace) is 13-14mm, preferably 13.11mm between 2 21 center of third surface.
Referring again to Fig. 1 and Fig. 2, in the specific structure design of the present invention, in the first surface 11 of first convex lens 1
The distance between the heart and diaphragm 3 L1 are 4.5-5.5mm, preferably 5mm.With guarantee use when pupil of human and the first convex lens 1 it
Between have suitable distance.
Referring again to Fig. 1 and Fig. 2, in the specific structure design of the present invention, opposite second concavees lens 2 with screen 4
The distance between 4th surface, 22 center and screen 4 L3 are 10-12mm, preferably 10.86mm.On the one hand guarantee that user is wearing
There is comfortable visual experience when virtual unit, on the other hand make field angle between the second concavees lens 2 and screen 4 preferably right
It answers, guarantees to form clearly image on the retina of people.
The VR/MR optical system of above-mentioned dual element convex-concave eyeglass provided by the invention, to two lens surface shapes, curvature half
Diameter, lens thickness, airspace, abbe number and preferred and reasonable cloth has been carried out apart from optical parameters such as position of human eye
Office applies the high treating effect of distortion correction and dispersion reduction to human eye, can obviously experience in test and practical application
It is substantially reduced to distortion and dispersion, distortion is reduced within 10%.Anamorphose is small, and edge lines are more smooth, faces and is feeling more
By force, the region of binocular overlapping is also bigger, and when use amplifies drawing strong sense of reality, and image definition is high, and field of view angle is big, while
Compensate for because of application and video frame rate decline and wear for a long time it is uncomfortable caused by spinning sensation, greatly improve the body of user
It tests.
Referring to Fig. 1, the present invention also provides a kind of VR/MR (virtual/mixed reality) equipment, including external frame 5 and
The VR/MR optical system of above-mentioned dual element convex-concave eyeglass, the lens module of first convex lens 1 and the second concavees lens 2 composition
It is fixed in the external frame 5, can be integrally formed by insertion or other modes and external frame 5, facilitate lens module in void
Assembly in quasi-/mixed reality equipment reduces rigging error, guarantees image quality.
Virtual/mixed reality equipment provided by the invention, using the VR/MR optical system of dual element convex-concave eyeglass of the present invention
System faces strong in sense since anamorphose is small, and the region of binocular overlapping is big, and when use amplifies drawing strong sense of reality, image definition
Height complies fully with the laws of visual perspective in the real world, virtual and true Space integration can be made in same picture frame, experiencer can
On the spot in person experiencing is interdependent between dummy object and real world；Meanwhile the dual element convex-concave eyeglass of the present invention of use
VR/MR optical system bulk it is small, keep whole equipment structure very compact, be applied to virtual/mixed reality helmet
Middle user does not have heavy feeling when wearing, thus comfort level when further improving use.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within principle.
Claims (7)
1. a kind of VR/MR optical system of dual element convex-concave eyeglass, which is characterized in that including by the first convex lens close to diaphragm
With with first convex lens in spacing setting the second concavees lens composed by lens module；First convex lens is positive coke
Away from lens, second concavees lens are negative focal length lens；First convex lens surface opposite with diaphragm is the spherical surface of evagination,
Its radius of curvature is 18mm < R1 < 21mm, and first convex lens surface opposite with second concavees lens is the hyperbolic of evagination
Line is aspherical；Second concavees lens surface opposite with first convex lens is that the hyperbola of indent is aspherical, described the
The two concavees lens surface opposite with screen is the spherical surface of indent, radius of curvature 24mm < R2 < 27mm；First convex lens and
Two surfaces of second concavees lens are formed by a spherical surface and one are aspherical；The focal length f1 of first convex lens
Ratio between the focal length f2 of the second concavees lens are as follows: -1.0 < f1/f2 < 0.8；The center thickness T1 of first convex lens with
Ratio between the center thickness T2 of second concavees lens are as follows: 3 < T1/T2 < 4.
2. the VR/MR optical system of dual element convex-concave eyeglass as described in claim 1, which is characterized in that first convex lens
Abbe number >=50 of mirror, the difference between the abbe number of first convex lens and the abbe number of second concavees lens
≥0。
3. the VR/MR optical system of dual element convex-concave eyeglass as described in claim 1, which is characterized in that first convex lens
Ratio T1/T2=3.5 between the center thickness T1 of mirror and the center thickness T2 of second concavees lens.
4. the VR/MR optical system of dual element convex-concave eyeglass as described in any one of claims 1-3, which is characterized in that with institute
Stating the distance between centre of surface and the diaphragm L1 except opposite first convex lens of diaphragm is 4.5-5.5mm.
5. the VR/MR optical system of dual element convex-concave eyeglass as claimed in claim 4, which is characterized in that first convex lens
It is 12-14mm that airspace between mirror and second concavees lens, which is TL,.
6. the VR/MR optical system of dual element convex-concave eyeglass as claimed in claim 4, which is characterized in that with the screen phase
Pair second concavees lens outer surface center and the distance between screen L2 be 10-12mm.
7. a kind of VR/MR equipment, which is characterized in that the VR/ with dual element convex-concave eyeglass described in any one of claims 1-6
MR optical system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610932896.6A CN106371212B (en) | 2016-10-25 | 2016-10-25 | The VR/MR optical system and VR/MR equipment of dual element convex-concave eyeglass |
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| CN201610932896.6A CN106371212B (en) | 2016-10-25 | 2016-10-25 | The VR/MR optical system and VR/MR equipment of dual element convex-concave eyeglass |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220304570A1 (en) * | 2016-10-17 | 2022-09-29 | EyeQue Inc. | Method and Apparatus for Measuring Vision Function |
| CN109143570A (en) * | 2017-06-15 | 2019-01-04 | 北京海鲸科技有限公司 | A kind of eyepiece and wear display equipment |
| CN107632388B (en) * | 2017-10-24 | 2024-04-02 | 歌尔光学科技有限公司 | Eyepiece and head-mounted display device |
| CN110187507A (en) * | 2019-05-28 | 2019-08-30 | 深圳市思坦科技有限公司 | A kind of nearly optics of the eye display device |
| US20210255427A1 (en) * | 2020-02-18 | 2021-08-19 | Facebook Technologies, Llc | Stop-in-front or stop-near-front lens assembly |
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