CN106997100A - A kind of augmented reality of big emergent pupil of the big angle of visual field shows system - Google Patents
A kind of augmented reality of big emergent pupil of the big angle of visual field shows system Download PDFInfo
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- CN106997100A CN106997100A CN201710242352.1A CN201710242352A CN106997100A CN 106997100 A CN106997100 A CN 106997100A CN 201710242352 A CN201710242352 A CN 201710242352A CN 106997100 A CN106997100 A CN 106997100A
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- visual field
- emergent pupil
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- 230000000007 visual effect Effects 0.000 title claims abstract description 26
- 230000003190 augmentative effect Effects 0.000 title claims abstract description 24
- 210000001747 pupil Anatomy 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims 1
- 239000011521 glass Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000000887 face Anatomy 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
-
- 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
- G02B2027/011—Head-up displays characterised by optical features comprising device for correcting geometrical aberrations, distortion
-
- 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
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
-
- 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
- G02B2027/0178—Eyeglass type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
System is shown the invention discloses a kind of augmented reality of big big emergent pupil of the angle of visual field, including：Image source, the virtual information for producing virtual reality；Off-axis projection system, at least including three spheres or aspherical refractor, each refractor is mutually not coaxial；Semi-transparent semi-reflecting eyeglass, provided with diffraction structure and is coated with semi-transparent semi-reflecting film；Described virtual information is reflected into human eye after sequentially passing through the refraction of off-axis projection system through semi-transparent semi-reflecting eyeglass；Real scene light enters human eye after the projection of semi-transparent semi-reflecting eyeglass.The augmented reality of the present invention shows that system solves the problems such as angle of visual field small picture show incomplete, emergent pupil not small loss picture.
Description
Technical field
Show that display technology field, more particularly to a kind of augmented reality of the big emergent pupil of the big angle of visual field show the present invention relates to enhancing
Show system.
Background technology
Augmented reality (AR) is a kind of Display Technique for real world that virtual information is added to, and be can be widely applied to
The fields such as military, medical treatment, education, manufacture, amusement.With the arrival in the augmented reality first year, augmented reality glasses are increasingly bigger
Well known, product also gradually spreads toward consumer market.
It is used as head-mounted system, it is contemplated that, it is necessary to constrain the size and weight of its structure the problems such as wearer comfort, this
It also limit the optical parametrics such as the angle of visual field, the emergent pupil of such eyepiece system simultaneously.Augmented reality glasses in the market are all deposited
The problems such as the angle of visual field is small, emergent pupil is not enough, this can cause Consumer's Experience to lack feeling of immersion.
Microsoft has issued a augmented reality glasses Hololens shown based on holographical wave guide in January, 2015.It is holographic
The function of effect, not lens imaging of the waveguide due to functioning only as light transmission, thus the angle of visual field can not accomplish very big.
The Hololens angle of visual field also has very big room for promotion at 30 degree or so.
The application of freeform optics surface prism can effectively improve augmented reality and show the parameters such as the angle of visual field and emergent pupil of system.
Publication No. CN101359089B Chinese patent literature discloses a kind of free curved surface prism helmet display optical system, bag
A free curved surface prism and a miniature image display with three optical surfaces is included, from observer side to image source side
To free curved surface prism is followed successively by first surface, second surface and the 3rd surface, and first surface is the transmission plane of concave；
Second surface is the reflecting surface of concave, plays enlarged drawing, outside is coated with reflective coating；3rd surface is concave shape
The transmission plane of shape, the actual light path of the optical system is the light that liquid crystal micro display device is sent, and first passes through the 3rd surface saturating
Inject into free curved surface prism, then on the inside of the first surface on be totally reflected, reflect, finally pass through again by second surface
Cross first surface and be transmitted through human eye.The diagonal linear field of the free curved surface prism can reach 60 degree, exit pupil diameter 8mm；But in order to
Run-off the straight and deformation when seeing extraneous field landscape, it is necessary to glued block compensation prism compensates the skew and inclination of light,
Add the complexity of processing technology.
The content of the invention
System is shown the invention provides a kind of augmented reality of big big emergent pupil of the angle of visual field, the aobvious of augmented reality glasses is used as
Show device, solve the problems such as small picture of the angle of visual field shows that incomplete, emergent pupil is not small and loses picture.
A kind of augmented reality of big emergent pupil of the big angle of visual field shows system, including：
Image source, the virtual information for producing virtual reality；
Off-axis projection system, at least including three spheres or aspherical refractor, each refractor be not mutually common
Axle；
Semi-transparent semi-reflecting eyeglass, provided with diffraction structure and is coated with semi-transparent semi-reflecting film；
Described virtual information is reflected into human eye after sequentially passing through the refraction of off-axis projection system through semi-transparent semi-reflecting eyeglass；
Real scene light enters human eye after the projection of semi-transparent semi-reflecting eyeglass；
Wherein, the refractor in off-axis projection system is rotational symmetry structure, and its surface face type meets equation (1),
With the position coordinate value put on (x, y, z) expression surface in equation (1)：
Wherein c is the curvature of curved surface apex, and k is the quadratic surface constant of curved surface, AiIt is the aspherical system of i ranks of curved surface
Number.
The augmented reality of the present invention shows that system changes the virtual letter that image source is produced by the refraction of off-axis projection system
The light path of breath, increases visual angle and the emergent pupil of virtual image, then into human eye, semi-transparent semi-reflecting lens after the reflection of semi-transparent semi-reflecting eyeglass
Piece has diffraction structure, can further change the light path of virtual information, increases visual angle and the emergent pupil of virtual image；Real scene light
Line enters human eye after the projection of semi-transparent semi-reflecting eyeglass, and the diffraction structure of semi-transparent semi-reflecting eyeglass changes the light of real scene, increases
The visual angle of big real world images and emergent pupil.
Image source can be OLED display screen, LCD liquid crystal display screen or LCOS, and size is small-sized for what can be bought on the market
Size.
Preferably, it is free-form surface lens that refractor is at least a piece of in described off-axis projection system.Off-axis projection
Refractor can be made of the less material of density in system, will not be to user head build-up of pressure when wearing.
Preferably, described diffraction structure is Fresnel texture structure or holographic grating structure.It is semi-transparent in the present invention
Diffraction structure in semi-reflective mirror piece, can change the light path of light, but do not play any remittance to the light through semi-transparent semi-reflecting eyeglass
Poly- or disperse function, plays the effect for expanding visual angle.
It is further preferred that described diffraction structure is Fresnel texture structure, plated in the groove of Fresnel texture structure
If being filled and led up after semi-transparent semi-reflecting film using the refractive index identical material with semi-transparent semi-reflecting eyeglass.Filled out using the material of identical refractive index
The groove of flat Fresnel texture structure, will not run-off the straight or deformation when extraneous light is through semi-transparent semi-reflecting eyeglass.
It is further preferred that described diffraction structure is Fresnel texture structure, the face of described Fresnel texture structure
Type meets equation (2)：
Z=mod (Z1, Δ h) (2)
Wherein Z1Equation (1) is met, Δ h represents structure rise.
Another preferred scheme is：Described diffraction structure is holographic grating structure, and described semi-transparent semi-reflecting eyeglass includes
Transparent flat lens and the holographic grating film and semi-transparent semi-reflecting film being attached to successively on transparent flat lens.
Compared with prior art, beneficial effects of the present invention are：
(1) angle of visual field reaches 60 degree, and can intactly be added to the virtual information of equal proportion real scene, improves user
Feeling of immersion so that user is hard to tell real world and virtual world；
(2) emergent pupil greatly there is provided the eye sufficiently large to user move scope, it is ensured that user's glasses during wearing it is askew fall
When do not lose visual field；
(3) the two semi-transparent semi-reflecting eyeglasses of face curvature identical are used so that the scene of real world reaches human eye and hardly produced
Raw aberration.
Brief description of the drawings
The index path that Fig. 1 is imaged for the virtual information part of the present invention；
Fig. 2 passes through the index path of semi-transparent semi-reflecting eyeglass for the real-world scene of the present invention.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Coordinate system is defined as in embodiment：Level is Z-direction to the right, and vertical z-axis is Y direction upwards, and vertical Y OZ is put down
Facial tissue is located at position of human eye center towards the inner right-handed coordinate system for X-direction, the origin of coordinates.
As depicted in figs. 1 and 2, a kind of augmented reality of big emergent pupil of the big angle of visual field shows system, including：It is image source 6, off-axis
Optical projection system and semi-transparent semi-reflecting eyeglass 2, image source 6 produce the virtual information of virtual reality, and virtual information sequentially passes through off-axis throwing
After the refraction of shadow system human eye 1 (as shown in Figure 1) is reflected into through semi-transparent semi-reflecting eyeglass 2；Real scene light is through semi-transparent semi-reflecting
Enter human eye 1 (as shown in Figure 2) after the projection of eyeglass 2.
Image source 6 is the miniscope that catercorner length is 0.5 inch.
Off-axis projection system includes three spheres or aspherical refractor, and three refractors are mutually not coaxial, from
The position of human eye 1 is to image source 6, and three refractors are rotational symmetry structure, respectively the first eyeglass 3, the second eyeglass 4 and
Three eyeglasses 5,6 working faces 3-1,3-2,4-1,4-2,5-1 and 5-2 altogether of three refractors, the face type of 6 working faces expires
With the position coordinate value put on (x, y, z) expression surface in sufficient equation (1), equation (1)：
Wherein c is the curvature of curved surface apex, and k is the quadratic surface constant of curved surface, AiIt is the aspherical system of i ranks of curved surface
Number.
Be 22.11mm from distances of the working face 3-1 of the first eyeglass 3 of off-axis projection system to image source 6, volume compared with
It is small.
Semi-transparent semi-reflecting eyeglass 2 is to be plated in Fresnel Lenses, the groove of Fresnel Lenses after semi-transparent semi-reflecting film with identical refraction
The material of rate is filled and led up, and the light of real scene is successively through material, semi-transparent semi-reflecting film and Fresnel Lenses is filled and led up, into human eye.
The transmissivity of semi-transparent semi-reflecting film is 50%.
The face type of Fresnel Lenses meets equation (2)：
Z=mod (Z1, Δ h) (2)
Wherein Z1Equation (1) is met, Δ h represents structure rise.
The augmented reality of the present embodiment shows that the face type data of system are specifically as shown in table 1.
The exit pupil diameter of the present embodiment is 6mm, and diagonal field of view is 60 degree.
The augmented reality of the present embodiment of table 1 shows the face type data (R=1/c) of system
Technical scheme and beneficial effect are described in detail embodiment described above, it should be understood that
The specific embodiment of the present invention is the foregoing is only, is not intended to limit the invention, it is all to be done in the spirit of the present invention
Any modification, supplement and equivalent substitution etc., should be included in the scope of the protection.
Claims (6)
1. a kind of augmented reality of big emergent pupil of the big angle of visual field shows system, it is characterised in that including：
Image source, the virtual information for producing virtual reality；
Off-axis projection system, at least including three spheres or aspherical refractor, each refractor is mutually not coaxial；
Semi-transparent semi-reflecting eyeglass, provided with diffraction structure and is coated with semi-transparent semi-reflecting film；
Described virtual information is reflected into human eye after sequentially passing through the refraction of off-axis projection system through semi-transparent semi-reflecting eyeglass；Truly
Scene light enters human eye after the projection of semi-transparent semi-reflecting eyeglass；
Wherein, the refractor in off-axis projection system is rotational symmetry structure, and its surface face type meets equation (1), equation
(1) with the position coordinate value put on (x, y, z) expression surface in：
Wherein c is the curvature of curved surface apex, and k is the quadratic surface constant of curved surface, AiIt is the i rank asphericity coefficients of curved surface.
2. the augmented reality of the big emergent pupil of the big angle of visual field according to claim 1 shows system, it is characterised in that it is described from
It is free-form surface lens that refractor is at least a piece of in axial projection's system.
3. the augmented reality of the big emergent pupil of the big angle of visual field according to claim 1 shows system, it is characterised in that described spreads out
Structure is penetrated for Fresnel texture structure or holographic grating structure.
4. the augmented reality of the big emergent pupil of the big angle of visual field according to claim 3 shows system, it is characterised in that described spreads out
Structure is penetrated for Fresnel texture structure, plating is set in the groove of Fresnel texture structure uses and semi-transparent semi-reflecting lens after semi-transparent semi-reflecting film
The refractive index identical material of piece is filled and led up.
5. the augmented reality of the big emergent pupil of the big angle of visual field according to claim 3 or 4 shows system, it is characterised in that described
Diffraction structure be Fresnel texture structure, the face type of described Fresnel texture structure meets equation (2)：
Z=mod (Z1, Δ h) (2)
Wherein Z1Equation (1) is met, Δ h represents structure rise.
6. the augmented reality of the big emergent pupil of the big angle of visual field according to claim 3 shows system, it is characterised in that described spreads out
Structure is penetrated for holographic grating structure, described semi-transparent semi-reflecting eyeglass includes transparent flat lens and is attached to transparent flat successively
Holographic grating film and semi-transparent semi-reflecting film on lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710242352.1A CN106997100A (en) | 2017-04-13 | 2017-04-13 | A kind of augmented reality of big emergent pupil of the big angle of visual field shows system |
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| CN201710242352.1A CN106997100A (en) | 2017-04-13 | 2017-04-13 | A kind of augmented reality of big emergent pupil of the big angle of visual field shows system |
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Cited By (2)
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| CN110008945A (en) * | 2019-04-04 | 2019-07-12 | 京东方科技集团股份有限公司 | A kind of lines identification mould group and preparation method thereof, display device |
| CN113436560A (en) * | 2021-06-09 | 2021-09-24 | 安徽省东超科技有限公司 | Imaging optical system and display device |
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Application publication date: 20170801 |