CN110161688A - Correction of refractive errors AR display device and wearable AR equipment - Google Patents
Correction of refractive errors AR display device and wearable AR equipment Download PDFInfo
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- CN110161688A CN110161688A CN201810147326.5A CN201810147326A CN110161688A CN 110161688 A CN110161688 A CN 110161688A CN 201810147326 A CN201810147326 A CN 201810147326A CN 110161688 A CN110161688 A CN 110161688A
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- 208000014733 refractive error Diseases 0.000 title claims abstract description 98
- 238000012937 correction Methods 0.000 title claims abstract description 95
- 230000003287 optical effect Effects 0.000 claims abstract description 39
- 230000008859 change Effects 0.000 claims abstract description 8
- 230000010287 polarization Effects 0.000 claims description 91
- 239000000758 substrate Substances 0.000 claims description 33
- 230000000644 propagated effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 14
- 238000003384 imaging method Methods 0.000 abstract description 6
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- 239000000243 solution Substances 0.000 description 10
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- 238000010586 diagram Methods 0.000 description 5
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- 201000009310 astigmatism Diseases 0.000 description 1
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Classifications
-
- 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
-
- 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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- 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
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
-
- 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
- G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
- G02B2027/0114—Head-up displays characterised by optical features comprising device for genereting colour display comprising dichroic elements
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention provides a kind of correction of refractive errors AR display devices and wearable AR equipment, including image projection apparatus and optical path component；Described image grenade instrumentation includes image source；The optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass.Technical solution of the present invention improves the integrated level of system, reduces the complexity of system, reduces the weight of system, reduces the eyeglass number that eye-observation external environment is passed through, and improves light transmittance, reduces stray light, reduces requirement of the system for distance of exit pupil.This design makes the curved mirror of original primary event increase refraction and reflection simultaneously.The quantity that plane of refraction is increased under the premise of system bulk does not change, improves design freedom, provides the foundation to reduce aberration and improving optical performance, while reducing volume, keeps the clarity of imaging system higher, visible angle is bigger.
Description
Technical field
The present invention relates to augmented reality technical field of imaging, in particular to a kind of correction of refractive errors AR display device and
Wearable AR equipment.
Background technique
AR (Augmented Reality, augmented reality) is also referred to as mixed reality, principle be by computer technology,
By virtual Information application to real world, true environment and virtual object have been added to the same picture or sky in real time
Between exist simultaneously.
Currently, people can be interacted by wearable device, such as AR glasses or the AR helmet with real world.Such as
Shown in Fig. 1, existing correction of refractive errors AR display device optical system includes image source 11, spectroscope 3, correcting lens 8, and curved surface half is anti-
Penetrate mirror 4 and the lens 12 above spectroscope 3, image source 11 is arranged in the top of optical system, and image source 11 and lens 12 it
Between have certain distance, the image light of image source 11 injects lens 12 down from above.At the same time, ambient light is anti-from curved surface half
The right side (human eye direction) to the left for penetrating mirror 4 is injected, and interference light is also injected from spectroscopical lower section upwards simultaneously.Image light
Some light pass through spectroscope 3 reflection directive curved surface half-reflecting mirror 4, some light is anti-using curved surface half-reflecting mirror 4
Directive spectroscope 3.At the same time, some light of ambient light sequentially passes through curved surface half-reflecting mirror 4, spectroscope 3 and correction
Eyeglass 8 arrives at human eye；The some light of interference light is then passed through correcting lens 8 by the reflection of spectroscope 3 and arrives at human eye.Part
Image light, component environment light and part interference light finally arrive at human eye also cross correcting lens 8, allow users to
It can also be seen that the image of the image source being superimposed upon in true environment 11 while seeing extraneous true environment.
Existing correction of refractive errors AR display device has the following deficiencies:
1. correcting lens are set between spectroscope and human eye, structure is complicated, increases weight, and optical surface brings more miscellaneous
Astigmatism and luminance loss need bigger distance of exit pupil that could wear, to system performance requirements height.
2. the volume of system is limited, it is difficult to promote image quality and optical property by increasing lens numbers.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of correction of refractive errors AR display device and wearings
Formula AR equipment.
In a first aspect, the embodiment of the invention provides a kind of correction of refractive errors AR display device, including image projection apparatus and
Optical path component；
Described image grenade instrumentation includes image source；
The optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass, wherein the correction of refractive errors eyeglass
Including correction of refractive errors substrate and semi-transparent semi-reflecting film, the semi-transparent semi-reflecting film is located at the side of the correction of refractive errors substrate.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein institute
Stating optical path component further includes anti-reflection film, and the anti-reflection film is located at the other side of the correction of refractive errors substrate.
With reference to first aspect or first aspect the first may, the embodiment of the invention provides second of first aspect
Possible embodiment, wherein described image grenade instrumentation further includes lens.
Second with reference to first aspect is possible, and the embodiment of the invention provides the third possible implementations of first aspect
Mode, wherein fitted closely between the image source and the lens or separately positioned.
With reference to first aspect, the third of the first possibility of first aspect or first aspect are possible, and the embodiment of the present invention mentions
The 4th kind of possible embodiment of first aspect is supplied, wherein the spectroscope is polarization spectroscope, and the optical path component is also
Including wave plate component, the wave plate component is between the polarization spectroscope and the correction of refractive errors eyeglass.
The 4th kind of possibility with reference to first aspect, the embodiment of the invention provides the 5th kind of possible implementations of first aspect
Mode, wherein the polarization spectroscope includes light polarizing film and polarization beam splitter；
The light polarizing film is used for the polarised light by polarization state for first direction, absorbs the polarization that polarization state is second direction
Light；
The polarization beam splitter is used for the polarised light by polarization state for first direction, and reflected polarization state is second direction
Polarised light；
The first direction and the second direction are mutually perpendicular to.
The 5th kind of possibility with reference to first aspect, the embodiment of the invention provides the 6th kind of possible implementations of first aspect
Mode, wherein the polarization beam splitter is located at the side for closing on described image grenade instrumentation and wave plate component, the light polarizing film position
In the side far from described image grenade instrumentation and wave plate component.
The 5th kind of possibility or the 6th kind of possibility with reference to first aspect, the embodiment of the invention provides the 7th of first aspect the
The possible embodiment of kind, wherein the polarization spectroscope further includes spectroscope substrate；The spectroscope substrate is located at described inclined
Between side, the light polarizing film and the polarization beam splitter of the light film far from the image source or the polarization beam splitter close on it is described
The side of image source.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein institute
The angle stated between the plane of reflection of polarization spectroscope and the optical axis of the correction of refractive errors eyeglass is α；The normal of the image source and
Angle between the plane of reflection of the polarization spectroscope is β；α value range is between β -10 ° to+10 ° of β, and 90 ° >=α >=
0°。
The 8th kind of possibility with reference to first aspect, the embodiment of the invention provides the 9th kind of possible implementations of first aspect
Mode, wherein β is 0 °~90 °.
The 8th kind of possibility with reference to first aspect, the embodiment of the invention provides the tenth kind of possible implementations of first aspect
Mode, wherein β is 40 °~50 °.
The 9th kind of possibility or the tenth kind of possibility with reference to first aspect, the embodiment of the invention provides the tenth of first aspect the
A kind of possible embodiment, wherein when the polarised light of the first direction and the polarised light of the second direction are meeting phase
When under the premise of mutually vertical around 0 °~360 ° rotations in direction that light is propagated, the polarization beam splitter and the wave plate component are also wanted
Change corresponding angle.
The tenth a kind of possibility with reference to first aspect, the 12nd kind the embodiment of the invention provides first aspect are possible
Embodiment, wherein the wave plate component is quarter wave plate.
The 12nd kind of possibility with reference to first aspect, the 13rd kind the embodiment of the invention provides first aspect are possible
Embodiment, wherein the quarter wave plate is set between the polarization spectroscope and the correction of refractive errors eyeglass.
The 12nd kind of possibility with reference to first aspect, the 14th kind the embodiment of the invention provides first aspect are possible
Embodiment, wherein the quarter wave plate fits in the inside of the correction of refractive errors eyeglass.
With reference to first aspect, the embodiment of the invention provides the 15th kind of possible embodiments of first aspect, wherein
The image source is the image source or single image source of integrated optical source.
Second aspect, the embodiment of the invention also provides the embodiment of the invention also provides a kind of wearable devices, including
Clamping piece and above-mentioned correction of refractive errors AR display device.
Correction of refractive errors AR display device provided by the invention and wearable AR equipment, correction of refractive errors AR display device is using inclined
Vibration optical path component, polarization optical path component include that the polarization spectroscope being arranged successively in the horizontal direction, wave plate component and dioptric are rectified
Positive eyeglass, image projection apparatus are located at the top of polarization spectroscope.The image light being emitted from image projection apparatus projects partially
It shakes on spectroscope, the polarised light of the first direction in image light is projected through polarization spectroscope to the external world, in image light
The polarised light of second direction is reflected on wave plate component；It is changed into circularly polarized light by wave plate component, is incident to correction of refractive errors
Eyeglass, a part of light are projected to the external world, another part reflected by correction of refractive errors eyeglass after using wave plate component, by circular polarization
Light is transformed into the polarised light of first direction, enters human eye through polarization spectroscope.Last part image light is received by human eye,
Allow users to see the virtual image of big visible angle.
The embodiment of the present invention bring it is following the utility model has the advantages that
The embodiment of the invention provides a kind of correction of refractive errors AR display devices, including image projection apparatus and optical path component；
Described image grenade instrumentation includes image source；The optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass.It improves
The integrated level of system, reduces the complexity of system, reduces the weight of system, reduces the eyeglass that eye-observation external environment is passed through
Number improves light transmittance, reduces stray light, reduces requirement of the system for distance of exit pupil.This design makes original one simultaneously
The curved mirror of secondary reflection increases refraction and reflection.The quantity of plane of refraction is increased under the premise of system bulk does not change,
Design freedom is improved, is provided the foundation to reduce aberration and improving optical performance, while reducing volume, makes imaging system
The clarity of system is higher, and visible angle is bigger.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages in specification, claim
Specifically noted structure is achieved and obtained in book and attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of AR display device of the prior art；
Fig. 2 is the structural schematic diagram of correction of refractive errors AR display device provided by first embodiment of the invention；
Fig. 3 is the structural schematic diagram of correction of refractive errors AR display device provided by second embodiment of the invention；
Fig. 4 is the structural schematic diagram of polarization spectroscope provided by the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of correction of refractive errors eyeglass provided by the embodiment of the present invention.
Icon:
1- image projection apparatus；11- image source；12- lens；3- spectroscope；4- curved surface half-reflecting mirror；5- polarization spectroscope；
51- spectroscope substrate；52- light polarizing film；53- polarization beam splitter；6- wave plate component；7- correction of refractive errors eyeglass；71- anti-reflection film；72-
Correction of refractive errors substrate；73- semi-transparent semi-reflecting film；8- correcting lens.
Specific embodiment
To keep destination, technical solution and the advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to this hair
Bright technical solution is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, without
It is whole embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be with a variety of different
Configuration is to arrange and design.Therefore, below the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit
The range of claimed invention processed, but it is merely representative of selected embodiment of the invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
Embodiment one
A kind of AR display device is present embodiments provided, as shown in Fig. 2, the AR display device, including image projection apparatus 1
And optical path component；
Image projection apparatus 1 includes image source 11 and lens 12.It should be noted that image projection apparatus can also only include
Image source.Wherein, the effect of image source 11 is to show the image for needing to project in human eye, and image source 11 can use plane image source, packet
Include but be not limited to the image source or single image source of integrated optical source.For example, (Organic Light-Emitting Diode, has OLED
Machine light emitting diode), LCOS (Liquid Crystal On Silicon, liquid crystal on silicon), LCD (Liquid Crystal
Display, liquid crystal display), MEMS (Microelectromechanical Systems, micro electronmechanical display system), DMD
The electronic device of displaying principles such as (Digital Micro-mirror Device, digital micromirror elements).Wherein, OLED and LCD
For the image source of integrated optical source；LCOS, MEMS and DMD are single image source, need in addition to increase secondary light source.
Lens 12 can be the lens group an of lens or multiple lens composition.Every face lens can be in lens or lens group
It is convex lens, concavees lens or convex lens and concavees lens any combination etc., the face type of lens can be spherical surface, aspherical, freedom song
Light refraction, matching polarized light road component are completed to be imaged by face etc., lens 12 jointly.
Optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass 7, wherein the correction of refractive errors eyeglass 7 wraps
Correction of refractive errors substrate 72 and semi-transparent semi-reflecting film 73 are included, it is separate that the semi-transparent semi-reflecting film 73 can be located at the correction of refractive errors substrate 72
The side of the spectroscope 3 can also be located at the side that the correction of refractive errors substrate 72 closes on the spectroscope 3.It is semi-transparent semi-reflecting
A part of incident ray can be reflected back spectroscope 3 by film 73.
If correction of refractive errors eyeglass 7 includes anti-reflection film 71, correction of refractive errors substrate 72 and semi-transparent semi-reflecting film 73,71 phase of anti-reflection film
Be located at the other side of the correction of refractive errors substrate 72 for the semi-transparent semi-reflecting film 73, can with as shown in figure 5, semi-transparent semi-reflecting film,
Anti-reflection film, correction of refractive errors substrate through-thickness followed order form the curved surface with correction of refractive errors function and reduce by half
Reflecting mirror, light are issued from image source 11, by lens 12 or lens group shaping, are mapped on spectroscope 3, and a part of light is through excessive
Light microscopic 3 reflects, and directive correction of refractive errors eyeglass 7, semi-transparent semi-reflecting film 73 reflects a part of light, again directive spectroscope 3, wherein one
It is divided ametropia situation when passing through design through 3 directive human eye of spectroscope in view of human eye, optics in adjustment system
The parameters such as curvature, thickness, interval, the refractive index of element enable ametropia human eye to see clear virtual image.
It should be noted that the optical axis of the plane of reflection of spectroscope 3 and correction of refractive errors eyeglass 7 is in the angle α, the method for the image source
Angle between line and the plane of reflection of spectroscope 3 is β；α value range is and 90 ° >=α >=0 ° between β -10 ° to+10 ° of β.β
Between 0 ° -90 °, preferably 40 ° -50 °, at this point, the visual field of image light is maximum, the visual range of image light is maximum.
In conclusion correction of refractive errors AR display device provided in this embodiment, has the advantages that
First, by parameters such as the face types, thickness, material on design two sides, increase the curved mirror of original primary event
To reflect primary event twice.The quantity that plane of refraction is increased under the premise of system bulk does not change improves design certainly
By spending, provides the foundation to reduce aberration and improving optical performance, while reducing volume, make the clarity of imaging system more
Height, visible angle are bigger.
Second, correction of refractive errors eyeglass is provided, problematic user wears convenient for eyesight, improves the practical of AR glasses
Property.
Embodiment two
Image projection apparatus 1 includes image source 11 and lens 12.It should be noted that image projection apparatus can also only include
Image source.Wherein, the effect of image source 11 is to show the image for needing to project in human eye, and image source 11 can use plane image source, packet
Include but be not limited to the image source or single image source of integrated optical source.For example, (Organic Light-Emitting Diode, has OLED
Machine light emitting diode), LCOS (Liquid Crystal On Silicon, liquid crystal on silicon), LCD (Liquid Crystal
Display, liquid crystal display), MEMS (Microelectromechanical Systems, micro electronmechanical display system), DMD
The electronic device of displaying principles such as (Digital Micro-mirror Device, digital micromirror elements).Wherein, OLED and LCD
For the image source of integrated optical source；LCOS, MEMS and DMD are single image source, need in addition to increase secondary light source.
Lens 12 can be the lens group an of lens or multiple lens composition.Every face lens can be in lens or lens group
It is convex lens, concavees lens or convex lens and concavees lens any combination etc., the face type of lens can be spherical surface, aspherical, freedom song
Light refraction, matching polarized light road component are completed to be imaged by face etc., lens 12 jointly.
Optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass 7, wherein the correction of refractive errors eyeglass 7 wraps
Correction of refractive errors substrate 72 and semi-transparent semi-reflecting film 73 are included, it is separate that the semi-transparent semi-reflecting film 73 can be located at the correction of refractive errors substrate 72
Spectroscopical side can also be located at the correction of refractive errors substrate 72 and close on spectroscopical side.Semi-transparent semi-reflecting film
A part of incident ray can be reflected back spectroscope 3 by 73.
If correction of refractive errors eyeglass 7 includes anti-reflection film 71, correction of refractive errors substrate 72 and semi-transparent semi-reflecting film 73,71 phase of anti-reflection film
Be located at the other side of the correction of refractive errors substrate 72 for the semi-transparent semi-reflecting film 73, for example, as shown in figure 5, from inside to outside according to
Secondary is anti-reflection film 71, correction of refractive errors substrate 72 and semi-transparent semi-reflecting film 73.Herein, separate to close on the side of spectroscope 3 as inside
The side of spectroscope 3 is outside.Light is issued from image source 11, by lens 12 or lens group shaping, is mapped on spectroscope 3, one
Some light is reflected by spectroscope 3, and directive correction of refractive errors eyeglass 7, semi-transparent semi-reflecting film 73 reflects a part of light, again directive point
Light microscopic 3, a portion light penetrate 3 directive human eye of spectroscope, in view of the ametropia situation of human eye when passing through design,
The parameters such as the curvature of optical element, thickness, interval, refractive index in adjustment system, enable ametropia human eye to see clear void
Quasi- image.
Optionally, spectroscope can use common spectroscope in the present embodiment, can also use polarization spectroscope 5.When point
When light microscopic is polarization spectroscope 5, optical path component includes the polarization spectroscope 5 being arranged successively in the horizontal direction, 6 and of wave plate component
Correction of refractive errors eyeglass 7.Polarization spectroscope 5 is located at the below or above of image projection apparatus 1.Wave plate component 6 is located at polarization spectro
Between mirror 5 and correction of refractive errors eyeglass 7.As shown in figure 4, polarization spectroscope 5 includes spectroscope substrate 51, light polarizing film 52 and polarization point
Light film 53.Light polarizing film 52 is used for the polarised light by polarization state for first direction, absorbs the polarised light that polarization state is second direction.
Polarization beam splitter 53 is used for the polarised light by polarization state for first direction, and reflected polarization state is the polarised light of second direction.Partially
Vibration spectroscope 5 is obliquely installed, and polarization beam splitter 53 is located at the side for closing on image projection apparatus 1 and wave plate component 6, light polarizing film 52
It is located remotely from the side of image projection apparatus 1 and wave plate component 6.
Wherein, first direction and second direction are mutually perpendicular to.For example, it is the side P that first direction polarised light, which can be polarization state,
To polarised light, second direction polarised light can be polarization state be the direction S polarised light.In view of P-polarized light and S polarized light can
To rotate under the premise of satisfaction is mutually perpendicular to around the light direction of propagation, therefore, first direction polarised light is also possible to polarization state
With the polarised light of the direction P at an angle, second direction polarised light is also possible to polarization state and the polarization of the direction S at an angle
Light, in the embodiment of the present invention, without limiting.
Wherein, light polarizing film, spectroscope substrate and polarization beam splitter through-thickness put in order, and can be such as Fig. 4 institute
Show, be followed successively by spectroscope substrate, light polarizing film and polarization beam splitter, i.e. spectroscope substrate is located on the outside of light polarizing film；Or
Light polarizing film, spectroscope substrate and polarization beam splitter, i.e. spectroscope substrate are located among light polarizing film and polarization beam splitter；It or is inclined
Light film, polarization beam splitter and spectroscope substrate, i.e. spectroscope substrate are located on the outside of polarization beam splitter.
Optionally, polarization spectroscope 5 can not also include spectroscope substrate, only include light polarizing film and polarization beam splitter.Partially
Vibration spectro-film is located at the side for closing on image projection apparatus and wave plate component, and light polarizing film is located remotely from image projection apparatus and wave plate
The side of component.
Since existing AR display device uses common spectroscope, causes interference with light and largely enter human eye, and is external
The contrast of the interference light severe jamming image of injection seriously affects the contrast of image so that picture material is chaotic.
In the present embodiment, when extraneous interference light is incident in polarization spectroscope 5, interference light can be first passed through partially
The polarised light of light film 52, second direction therein is absorbed, and the polarised light of remaining first direction can pass through light polarizing film and polarization point
Light film, substantially noiseless light are reflected into human eye, can promote image-watching contrast, reduce interference.
As shown in figure 3, the optical axis of the plane of reflection of polarization spectroscope 5 and correction of refractive errors eyeglass 7 is in the angle α, the image source
Angle between normal and the plane of reflection of the polarization spectroscope is β；α value range is and 90 ° between β -10 ° to+10 ° of β
≥α≥0°.β is preferably 40 ° -50 ° between 0 ° -90 °, at this point, the visual field of image light is maximum, the visual model of image light
Enclose maximum.
Wave plate component 6 can use quarter wave plate.Quarter wave plate is used to the second incident polarised light being changed into circularly polarized light.
Quarter wave plate can be planar structure or curved-surface structure；Quarter wave plate can also be cylindrical structure；Quarter wave plate can also be spherical surface or aspherical
Structure.Quarter wave plate can be set between polarization spectroscope 5 and correction of refractive errors eyeglass 7, as shown in Figure 3.Quarter wave plate can also be with
The inside of correction of refractive errors eyeglass 7 is fitted in, that is, closes on the side of polarization spectroscope 5.
First polarised light and the second polarised light can meet be mutually perpendicular under the premise of around the direction 0 that light is propagated~
360 ° of rotations, polarization beam splitter and quarter wave plate will also change corresponding angle at this time.It therefore, can be according to first in production
The angle of direction polarised light and second direction polarised light determines the setting angle of polarization spectroscope and wave plate component.
In conclusion correction of refractive errors AR display device provided in this embodiment, has the advantages that
First, multilayer film polarization spectroscope removes interference light, and for image without veiling glare, contrast is high.
Second, the energy efficiency of image light is promoted to 25%, and brightness is obviously improved.
Third increases the curved mirror of original primary event by parameters such as the face types, thickness, material on design two sides
To reflect primary event twice.The quantity that plane of refraction is increased under the premise of system bulk does not change improves design certainly
By spending, provides the foundation to reduce aberration and improving optical performance, while reducing volume, make the clarity of imaging system more
Height, visible angle are bigger.
4th, correction of refractive errors eyeglass is provided, problematic user wears convenient for eyesight, improves the practical of AR glasses
Property.
5th, the integrated level of system is improved, the complexity of system is reduced, reduces the weight of system, is reduced outside eye-observation
The eyeglass number that boundary's environment passes through improves light transmittance, reduces stray light, reduces requirement of the system for distance of exit pupil.
Embodiment three
The wearable AR equipment of the present embodiment is provided with above-mentioned correction of refractive errors AR display device, correction of refractive errors AR display dress
It sets using polarization optical path component, polarization optical path component includes the polarization spectroscope being arranged successively, wave plate component and diopter correcting glass
Piece, image projection apparatus are located at the top of polarization spectroscope.The image light being emitted from image projection apparatus projects polarization point
On light microscopic, polarization state is that the light of first direction enters external environment through polarization spectroscope in image light, in image light
Partial polarization state is that the light of second direction is reflected on wave plate component；It is changed into circularly polarized light by wave plate component, is incident to
Correction of refractive errors eyeglass, a part of light are projected to the external world, another part reflected by correction of refractive errors eyeglass after using wave plate component,
The light that polarization state is first direction is transformed by circularly polarized light, enters human eye through polarization spectroscope.It allows users to see big
The virtual image of visible angle, improves the efficiency of light energy utilization, improves image light brightness.In same image light brightness demand
In the case where, correction of refractive errors AR display device can reduce equipment heating amount with energy saving.
Meanwhile having the further advantage that by improving image space refractive index, biggish number is realized with relatively small angular aperture
It is worth aperture, reduces the deflection angle of rim ray, reduce design difficulty；Reduce the refringence of lens interface, improves
The transmitance of rim ray reduces ghost image, and highlights；Element arrangements are compact, are convenient for adjustment, system strength is high, and weight is more
Gently, comfortable wearing；Polarization spectroscope removes interference light, and for image without veiling glare, contrast is high；Promote the energy efficiency of image light
To about 25%, brightness is obviously improved；The parameters such as face type, thickness, material by design correction of refractive errors eyeglass two sides make original
The curved mirror of primary event increases to reflect primary event twice.Plane of refraction is increased under the premise of system bulk does not change
Quantity, improve design freedom, provide the foundation to reduce aberration and improving optical performance, while reducing volume,
Keep the clarity of imaging system higher, visible angle is bigger.
Correction of refractive errors AR display device provided in an embodiment of the present invention and wearable AR equipment technical characteristic having the same,
So also can solve identical technical problem, reach identical technical effect.
It should be noted that in embodiment provided by the present invention, it should be understood that disclosed system and method, it can
To realize by another way.The apparatus embodiments described above are merely exemplary, for example, the unit is drawn
Point, only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.It is described to be used as separation unit
The unit that part illustrates may or may not be physically separated, and component shown as a unit can be or can also
Not to be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality
Needs some or all of the units may be selected to achieve the purpose of the solution of this embodiment ground.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (17)
1. a kind of correction of refractive errors AR display device, which is characterized in that including image projection apparatus and optical path component；
Described image grenade instrumentation includes image source；
The optical path component includes the spectroscope being arranged successively and correction of refractive errors eyeglass, wherein the correction of refractive errors eyeglass includes
Correction of refractive errors substrate and semi-transparent semi-reflecting film, the semi-transparent semi-reflecting film are located at the side of the correction of refractive errors substrate.
2. correction of refractive errors AR display device according to claim 1, which is characterized in that the correction of refractive errors eyeglass further includes
Anti-reflection film, the anti-reflection film are located at the other side of the correction of refractive errors substrate.
3. correction of refractive errors AR display device according to claim 1 or 2, which is characterized in that described image grenade instrumentation is also
Including lens.
4. correction of refractive errors AR display device according to claim 3, which is characterized in that between the image source and the lens
It fits closely or separately positioned.
5. according to claim 1,2,4 described in any item correction of refractive errors AR display devices, which is characterized in that the spectroscope is
Polarization spectroscope, the optical path component further include wave plate component, the wave plate component be located at the polarization spectroscope and it is described bend
Between light correcting lens.
6. correction of refractive errors AR display device according to claim 5, which is characterized in that the polarization spectroscope includes polarisation
Film and polarization beam splitter；
The light polarizing film is used for the polarised light by polarization state for first direction, absorbs the polarised light that polarization state is second direction；
The polarization beam splitter is used for the polarised light by polarization state for first direction, and reflected polarization state is the polarization of second direction
Light；
The first direction and the second direction are mutually perpendicular to.
7. correction of refractive errors AR display device according to claim 6, which is characterized in that the polarization beam splitter, which is located at, to be closed on
The side of described image grenade instrumentation and wave plate component, the light polarizing film are located remotely from described image grenade instrumentation and wave plate component
Side.
8. correction of refractive errors AR display device according to claim 6 or 7, which is characterized in that the polarization spectroscope also wraps
Include spectroscope substrate；The spectroscope substrate be located at side of the light polarizing film far from the image source, the light polarizing film with it is described
Between polarization beam splitter or the polarization beam splitter closes on the side of the image source.
9. correction of refractive errors AR display device according to claim 1, which is characterized in that spectroscopical plane of reflection and
Angle between the optical axis of the correction of refractive errors eyeglass is α；Between the normal of the image source and spectroscopical plane of reflection
Angle be β；α value range is and 90 ° >=α >=0 ° between β -10 ° to+10 ° of β.
10. correction of refractive errors AR display device according to claim 9, which is characterized in that β is 0 °~90 °.
11. correction of refractive errors AR display device according to claim 9, which is characterized in that β is 40 °~50 °.
12. correction of refractive errors AR display device according to claim 6, which is characterized in that when the polarization of the first direction
Light and the polarised light of the second direction meet be mutually perpendicular under the premise of around 0 °~360 ° rotations in direction that light is propagated when,
The polarization beam splitter and the wave plate component will also change corresponding angle.
13. correction of refractive errors AR display device according to claim 5, which is characterized in that the wave plate component is 1/4 wave
Piece.
14. correction of refractive errors AR display device according to claim 13, which is characterized in that the quarter wave plate is set to institute
It states between polarization spectroscope and the correction of refractive errors eyeglass.
15. correction of refractive errors AR display device according to claim 13, which is characterized in that the quarter wave plate fits in institute
State the side for closing on the polarization spectroscope of correction of refractive errors eyeglass.
16. correction of refractive errors AR display device according to claim 1, which is characterized in that the image source is integrated optical source
Image source or single image source.
17. a kind of wearable AR equipment, which is characterized in that including described in any one of clamping piece and the claims 1~16
Correction of refractive errors AR display device.
Priority Applications (29)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147326.5A CN110161688A (en) | 2018-02-12 | 2018-02-12 | Correction of refractive errors AR display device and wearable AR equipment |
| JP2020565008A JP7418706B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| KR1020207026193A KR102628264B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality devices and optical systems used in augmented reality devices |
| EP19750619.9A EP3754408A4 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, and ar display device and projection source module thereof |
| PCT/CN2019/074852 WO2019154426A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| CN201980001721.5A CN110537133A (en) | 2018-02-12 | 2019-02-12 | Wearable AR system, AR show equipment and its projection source mould group |
| CN201980001732.3A CN110537135A (en) | 2018-02-12 | 2019-02-12 | Augmented reality equipment and its employed in optical system and half-reflecting mirror |
| EP19750958.1A EP3754410A4 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device, optical system and half mirror employed therein |
| EP19750620.7A EP3754409A4 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| JP2020565011A JP7285579B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| CN201980001727.2A CN110537134A (en) | 2018-02-12 | 2019-02-12 | Augmented reality equipment and its employed in optical system |
| PCT/CN2019/074857 WO2019154428A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device, optical system and half mirror employed therein |
| CN201980001716.4A CN110573933A (en) | 2018-02-12 | 2019-02-12 | Wearable AR system, AR display equipment and projection source module thereof |
| KR1020207026326A KR102455328B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system therefor |
| PCT/CN2019/074868 WO2019154430A1 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, ar display device, and projection source module thereof |
| PCT/CN2019/074863 WO2019154429A1 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, and ar display device and projection source module thereof |
| PCT/CN2019/074876 WO2019154432A1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| KR1020207026342A KR102564295B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system and semi-reflector therefor |
| JP2020565009A JP7329207B2 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system and semi-reflector therefor |
| EP19750326.1A EP3754407B1 (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| EP19751742.8A EP3754411A4 (en) | 2018-02-12 | 2019-02-12 | Wearable ar system, ar display device, and projection source module thereof |
| CN201980001731.9A CN110546550A (en) | 2018-02-12 | 2019-02-12 | Augmented reality device and optical system used therein |
| US16/930,000 US11042040B2 (en) | 2018-02-12 | 2020-07-15 | Augmented reality apparatus and optical system therefor |
| US16/930,156 US11693245B2 (en) | 2018-02-12 | 2020-07-15 | Wearable AR system, AR display device and its projection source module |
| US16/930,061 US11693244B2 (en) | 2018-02-12 | 2020-07-15 | Augmented reality apparatus and optical system therefor |
| US16/989,502 US11874466B2 (en) | 2018-02-12 | 2020-08-10 | Augmented reality apparatus, and optical system and semi-reflector therefor |
| US16/990,633 US11500205B2 (en) | 2018-02-12 | 2020-08-11 | Wearable AR system, AR display device and its projection source module |
| US17/326,014 US11460704B2 (en) | 2018-02-12 | 2021-05-20 | Augmented reality apparatus and optical system therefor |
| US18/325,986 US11988839B2 (en) | 2018-02-12 | 2023-05-30 | Augmented reality apparatus and optical system therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147326.5A CN110161688A (en) | 2018-02-12 | 2018-02-12 | Correction of refractive errors AR display device and wearable AR equipment |
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| CN110161688A true CN110161688A (en) | 2019-08-23 |
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| CN201810147326.5A Pending CN110161688A (en) | 2018-02-12 | 2018-02-12 | Correction of refractive errors AR display device and wearable AR equipment |
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