CN107678166A - Augmented reality display device - Google Patents
Augmented reality display device Download PDFInfo
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- CN107678166A CN107678166A CN201711171484.6A CN201711171484A CN107678166A CN 107678166 A CN107678166 A CN 107678166A CN 201711171484 A CN201711171484 A CN 201711171484A CN 107678166 A CN107678166 A CN 107678166A
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- 230000003190 augmentative effect Effects 0.000 title claims abstract description 56
- 230000003287 optical effect Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000011514 reflex Effects 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 230000010287 polarization Effects 0.000 claims description 49
- 238000003384 imaging method Methods 0.000 claims description 24
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- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
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- 238000011161 development Methods 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
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/19—Sensors therefor
Abstract
The present invention provides a kind of augmented reality display device.The augmented reality display device includes image display, optical combiner and infrared receiving/transmission module.Optical combiner includes the bridgeware that plane wave can be converted to spherical wave.Infrared receiving/transmission module includes infrared receiver and infrared emission unit.The optical axis of bridgeware and the optical axis of infrared receiver are substantial parallel or coaxial.The image light exported by image display, amplify through optical combiner and reflex to human eye formation virtual image.Real world light is directly transmitted into human eye by optical combiner.The infrared light covering human eye scope of infrared emission unit transmitting, the human eye virtual image of the human eye after optical combiner projects are obtained by infrared receiver.The augmented reality display device realizes infrared receiver and is obtained with image of clearly looking straight without face human eye, does not disturb reception of the user to real world light, verified available for eye tracking, iris recognition identification etc..
Description
Technical field
The present invention relates to augmented reality display technology field, in particular to a kind of augmented reality display device.
Background technology
Head-mounted display (HMD, Head mounted display) is a kind of including at least a micro display device (figure
Image source module), the nearly eye display device of display optical system and supporting construction.Transmission-type HMD has its special man-machine friendship
Mutual characteristic, augmented reality can be combined, is widely used in each field such as scientific research, military affairs, industry, game, video, education.
However as the development and extensive use of emerging technology, the safety issues such as the protection and payment of the individual privacy used use
It will highlight；By coded lock, fingerprint is common authentication mode, and iris recognition identification certification is considered as to be only second to
The biotechnology of DNA identifications, iris recognition technology is solved into user applied to head-mounted display is made using display device
It is technology trends with Authentication Questions such as authority, transaction payments.
Iris recognition module requires that the camera of shooting eye image is right against human eye, most effective, most reliable to obtain
Eye image.And when augmented reality display is augmented reality display device, camera, which is right against human eye and can block user, to be regarded
Line, it is not easy to user and observes external environment.
The content of the invention
In view of this, it disclosure satisfy that iris recognition requirement it is an object of the invention to provide one kind and do not block user's sight
Augmented reality display device, to solve the above problems.
To achieve the above object, the present invention provides following technical scheme：
Present pre-ferred embodiments provide a kind of augmented reality display device, including image display, optical combiner and
Infrared receiving/transmission module, the optical combiner include the bridgeware that plane wave can be converted to spherical wave, the infrared receiving/transmission mould
Group includes infrared receiver and infrared emission unit；
The optical axis of the optical axis of the bridgeware and the infrared receiver is substantial parallel or coaxial；
The image light exported by described image display, amplifies through the optical combiner and reflexes to human eye and form void
Intend image, the virtual display for the artificial additional information to real world；Real world light passes through the light
Learn combiner and be directly transmitted into human eye；The infrared light covering human eye scope of infrared emission unit transmitting, described in human eye warp
The human eye virtual image after optical combiner projection is obtained by the infrared receiver.
Alternatively, the bridgeware is diffraction plane or continuous convex surface.
Alternatively, the bridgeware includes plane and imaging lens arrangement.
Alternatively, the imaging lens arrangement is to focus imaging lens arrangement or varifocal imaging lens subassembly.
Alternatively, the imaging lens arrangement is at least one in liquid crystal lens, liquid lens and mechanical zoom lens group
It is individual.
Alternatively, described image display is self-luminous display.
Alternatively, described image display includes image-display units, polarization spectro component and lighting source, described image
Display unit is reflective；
The light beam of lighting unit output is transmitted through the polarization spectro component, and S-polarization light beam is reflected by polarization spectro component
To described image display unit, described image display unit carries out light according to the gray scale of now image to be displayed to S-polarization light beam
Energy modulation, the light beam after the modulation of described image display unit are converted to P polarization light beam, and P polarization light beam is again passed through described
Enter after polarization spectro component in the optical combiner.
Alternatively, the infrared emission unit is integrated in one with described image display.
Alternatively, described image display includes image-display units and lighting unit, and described image display unit is
Penetrate formula；
The illuminating bundle of lighting unit output is incident to image-display units, and image-display units are according to now figure to be shown
The gray scale of picture carries out light energy modulation to illuminating bundle, and the light beam after modulation is directly entered in optical combiner.
Alternatively, described image display includes image-display units and lighting unit, and described image display unit is anti-
Formula is penetrated, polarization beam splitter is provided with the optical combiner；
The light beam of lighting unit output is transmitted through the polarization beam splitter, the S-polarization light beam transmission in illuminating bundle
To image-display units, described image display unit carries out light energy according to the gray scale of now image to be displayed to S-polarization light beam
Modulation, the light beam after the modulation of described image display unit are converted to P polarization light beam, and P polarization light beam is again by the polarization point
Light film reflects.
Augmented reality display device provided by the invention is by setting bridgeware and making the optical axis of the bridgeware and described
The reception optical axis of infrared receiver is substantial parallel or coaxial, to form the human eye virtual image, and the human eye virtual image is connect away from infrared
The distance for receiving unit falls in the working range of infrared receiver, to be obtained by infrared receiver.It is it is achieved thereby that infrared
Receiving unit is obtained with image of clearly looking straight without face human eye, does not disturb user to connect real world light
Receive, verified available for eye tracking, iris recognition identification etc..Wherein, image of looking straight refers to be equivalent to the shooting of face human eye
The eye image of angle shot.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described.It should be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of block diagram for augmented reality display device that present pre-ferred embodiments provide.
Fig. 2 is the structure chart of augmented reality display device in an embodiment.
Fig. 3 is the light path schematic diagram that the virtual image of augmented reality display device in Fig. 2 is shown.
Fig. 4 is the light path schematic diagram that augmented reality display device carries out human eye virtual image forming in Fig. 2.
Fig. 5 is the structure chart of augmented reality display device in another embodiment.
Fig. 6 is the structure chart of augmented reality display device in another embodiment.
Fig. 7 is the structure chart of augmented reality display device in another embodiment.
Fig. 8 is the structure chart of augmented reality display device in another embodiment.
Fig. 9 is the structure chart of augmented reality display device in another embodiment.
Icon：100- augmented reality display devices；1- image displays；2- infrared receiving/transmission modules；3- optical combiners；
30- bridgewares；21- infrared emission units；22- infrared receivers；31- first instances；32- second instances；33- the 3rd is real
Body；The entities of 34- the 4th；The entities of 35- the 5th；S355- end faces；The adjacent surfaces of S312- first；The adjacent surfaces of S324- second；S334-
Three-phase proximal surface；The adjacent surfaces of S313- the 4th；The adjacent surfaces of S345- the 5th；S311- concave surfaces；11- lighting units；12- polarization spectro groups
Part；13- image-display units；111-LED lamps；112- fly's-eye lenses；113- expands microscope group；211- infrared light supplies；212- is divided
Mirror；The infrared completely reflecting mirrors of 213-；114- speculums；301- imaging lens arrangements.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on embodiments of the invention, people in the art
The every other embodiment that member is obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.In description of the invention
In, term " first ", " second ", " the 3rd ", " the 4th " etc. are only used for distinguishing description, and it is not intended that being or implying relative
Importance.
Referring to Fig. 1, present pre-ferred embodiments provide a kind of augmented reality display device 100, including image display
1st, infrared receiving/transmission module 2 and optical combiner 3.Wherein the augmented reality display device 100 can be applied not only to augmented reality
Field, mixed reality field can also be applied to.I.e., in a broad sense, the augmented reality display device 100 can also be mixing
Reality display device.
The optical combiner 3 includes the bridgeware 30 that plane wave can be converted to spherical wave.The infrared receiving/transmission module 2
Including infrared emission unit 21 and infrared receiver 22.The optical axis of the bridgeware 30 and connecing for the infrared receiver 22
It is substantial parallel or coaxial to receive optical axis.Wherein, it is substantial parallel or coaxial refer to close to parallel or coaxial.For the bridgeware
The reception optical axis of 30 optical axis and the infrared receiver 22 has the deviation of low-angle in tolerance interval, and substantially
It is parallel or coaxial.
The image light exported by described image display 1, amplifies through optical combiner 3 and reflexes to human eye and formed virtually
Image, the virtual display for the artificial additional information to real world.Real world light passes through the optics
Combiner 3 is directly transmitted into human eye.The infrared light covering human eye scope that the infrared emission unit 21 is launched, described in human eye warp
The human eye virtual image after optical combiner 3 projects is obtained by the infrared receiver 22.
The augmented reality display device 100 that present pre-ferred embodiments provide is by setting bridgeware 30 and making the conversion
The reception optical axis of the optical axis of part 30 and the infrared receiver 22 is substantial parallel or coaxial, to form the human eye virtual image, and makes
The distance of the human eye virtual image away from infrared receiver 22 falls in the working range of infrared receiver 22, with by infrared receiver list
Member 22 obtains.It is achieved thereby that infrared receiver 22 is obtained with image of clearly looking straight without face human eye, do not disturb
Reception of the user to real world light, verified available for eye tracking, iris recognition identification etc..Wherein, look straight image
Refer to be equivalent to the eye image of the shooting angle shooting of face human eye.
Because image display 1, the structure of optical combiner 3 and infrared receiving/transmission module 2 and set-up mode can have a lot
Kind.Therefore, conceived based on foregoing invention, the concrete structure of augmented reality display device 100 may be, but not limited to, such as Fig. 2, figure
5th, shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9.It should be understood that for the ease of description, the enhancing shown in Fig. 2, Fig. 5, Fig. 6, Fig. 7, Fig. 8 and Fig. 9
Reality display device 100 is presented in the form of monocular.Those skilled in the art can be according to such as Fig. 2, Fig. 5, Fig. 6, Fig. 7, Fig. 8
Structure when augmented reality display device 100 is binocular is released with the structure shown in Fig. 9.
As shown in Fig. 2 Fig. 2 is the structure chart of augmented reality display device 100 in an embodiment.Image display 1 is
1 OLED of self-luminous R, G, B image three-colo(u)r display.It is real that optical combiner 3 includes first instance 31, second instance the 32, the 3rd
Body 33, the 4th entity 34 and the 5th entity 35.First instance 31, second instance 32, the 3rd entity 33, the 4th entity 34 and the 5th
Entity 35 can be glued together by optical cement.Bridgeware 30 is the end face S355 of the 5th entity 35, and the end face S355 is
Continuous convex surface.
The infrared receiver 22 is close to the bridgeware 30, and the optical axis of the bridgeware 30 and the infrared receiver
The optical axis OG of unit 22 is substantial parallel or coaxial.Image display 1 is arranged at the 4th entity 34 and the 5th entity 35
Top.Infrared emission unit 21 can be infrared LED light source, can be positioned over augmented reality display device 100 any one, energy
Cover human eye scope and the visual field of projection imaging and default external environment field of view will not be caused to block.It is optional
, in the present embodiment, infrared emission unit 21 is disposed in proximity to the side of bridgeware 30.Infrared receiver 22 can be red
Outer camera.
The face adjacent with second instance 32 of first instance 31 and/or second instance 32 face adjacent with first instance 31 are remembered
For the first adjacent surface S312.Then the first adjacent surface S312 can be the face adjacent with second instance 32 of first instance 31, also may be used
To be the face adjacent with first instance 31 of second instance 32, the adjacent with second instance 32 of first instance 31 can also be included
Face and the face adjacent with first instance 31 of second instance 32.Similarly, by the face adjacent with the 4th entity 34 of second instance 32 and/
Or the 4th the face adjacent with second instance 32 of entity 34 be designated as the second adjacent surface S324.By the 3rd entity 33 and the phase of the 4th entity 34
Adjacent face and/or the 4th entity 34 face adjacent with the 3rd entity 33 is designated as third phase proximal surface S334.By first instance 31 and
The adjacent face of three entities 33 and/or the 3rd entity 33 face adjacent with first instance 31 are designated as the 4th adjacent surface S313.By the 4th
The face adjacent with the 5th entity 35 of entity 34 and/or the 5th entity 35 face adjacent with the 4th entity 34 are designated as the 5th adjacent surface
S345.Wherein the first adjacent surface S312 and third phase proximal surface S334 are coplanar, and the second adjacent surface S324 and the 4th adjacent surface S313 are total to
Face.5th adjacent surface S345 is identical with the second adjacent surface S324 and the 4th adjacent surface S313 incline direction.
What the first adjacent surface S312 was coated with visible light wave range can thoroughly can anti-film.The second adjacent surface S324 and the 4th
Adjacent surface S313 is coated with infrared band and is all-trans film.The third phase proximal surface S334 be coated with visible light wave range can thoroughly can anti-film and
The anti-reflection film of infrared band.The 5th adjacent surface S345 is coated with the anti-reflection of be all-trans film and the infrared band of visible light wave range
Film.The first instance 31 includes concave surface S311, and the concave surface S311 is coated with the film that is all-trans of visible light wave range.
By above-mentioned setting, light path schematic diagram such as Fig. 3 institutes that the virtual image of the augmented reality display device 100 is shown
Show.The light beam for image to be displayed information that what image display 1 was sent carry is after the 5th adjacent surface S345 total reflections, through the
After one adjacent surface S312, the second adjacent surface S324, third phase proximal surface S334 and the 4th adjacent surface S313, amplified by concave surface S311 anti-
Human eye is reflected into by the first adjacent surface S312 and third phase proximal surface S334 after penetrating.
Real world light is directly transmitted into human eye by the optical combiner 3.
As shown in figure 4, when the augmented reality display device 100 carries out human eye virtual image forming, infrared emission unit 21 is launched
Infrared light covering human eye scope, the infrared light of people's eye reflex or scattering is through the second adjacent surface S324 and third phase proximal surface S334
After reflection, through the 5th adjacent surface S345.Because the infrared receiver 22 is close to the bridgeware 30, and the bridgeware
The optical axis of 30 optical axis and the infrared receiver 22 is substantial parallel or coaxial, therefore through the second adjacent surface S324 and the 3rd
Adjacent surface S334 reflects, and infrared receiver 22 can look straight imaging to human eye.Human eye to infrared receiver 22 physics away from
It is very short from L1+L2, typically smaller than 100mm.And the nearest operating distance of infrared receiver 22 is typically much deeper than this value, generally exist
Between 300mm~3m.Therefore, if infrared receiver 22 is directly to the second adjacent surface S324 and third phase proximal surface S334 reflections
Light is imaged, then can not obtain clearly human eye picture.To solve the above problems, augmented reality provided in an embodiment of the present invention
Display device 100 includes plane wave can be converted to spherical wave bridgeware 30.Bridgeware 30, the 5th entity 35, the 4th entity 34
The positive focus lens with positive focal length have been collectively constituted with the 3rd entity 33.By setting the curvature of bridgeware 30 can positive Jiao
The focal plane of lens is near human eye position.Bridgeware 30 can form human eye void at infrared receiver 22L
Picture, infrared receiver 22 to human eye virtual image forming infrared receiver 22 receiving plane.Wherein, L can be more than 500mm,
Even up to 5m, then L fall in the range of the operating distance of infrared receiver 22, meet the blur-free imaging of infrared receiver 22
Required distance.Clearly as the imaging effect of bridgeware 30 increases human eye to the equivalent of infrared receiver 22 indirectly
Manage distance so that infrared receiver 22 can obtain the picture rich in detail of looking straight of human eye.Under normal circumstances, it is raising people's eye reflex
Infrared light transmitance can also to bridgeware 30 plate infrared anti-reflection film.
It should be understood that the structure of optical combiner 3 is not limited to above-mentioned structure, when image display 1 and infrared receiver module
Set-up mode when changing, the structure of optical combiner 3 can make corresponding change.
As shown in figure 5, Fig. 5 is the structure chart of augmented reality display device 100 in another embodiment.It is similar with Fig. 2, no
Be：Image display 1 includes lighting unit 11, polarization spectro component 12 and image-display units 13.
Lighting unit 11 is used to provide illuminating bundle for image-display units 13.Lighting unit 11 can include LED
111st, fly's-eye lens 112 and microscope group 113 is expanded.Lighting unit 11 provides monochromatic light.Image-display units 13 can be reflective
, such as reflective LCoS display device.Polarization spectro component 12 is the non-polarized light of incidence can be divided into two beams vertically
Line polarisation, wherein P polarisations are completely by a kind of and optical element that S polarisations are reflected with 45 degree of angles.In the present embodiment, polarization
Spectrum groupware 12 can be PBS prisms (polarization beam splitter, polarization splitting prism).
When it is implemented, the light beam that LED 111 exports passes through fly's-eye lens 112 and expands 113 even beam of microscope group and expand
Afterwards, image-display units 13 are reflexed to by polarization spectro component 12 into polarization spectro component 12, S-polarization light beam, image is shown
Unit 13 carries out light energy modulation according to the gray scale of now image to be displayed to S-polarization light beam, is modulated through image-display units 13
Light beam afterwards is converted to P polarization light beam, and P polarization light beam enters in optical combiner 3 after being again passed through polarization spectro component 12.
As shown in fig. 6, Fig. 6 is the structure chart of augmented reality display device 100 in another embodiment.It is similar with Fig. 5, no
Be：Infrared emission unit 21 integrates with image display 1.Infrared emission unit 21 includes the He of infrared light supply 211
Spectroscope 212.
Infrared light supply 211 can be infrared LED light source or infrared LD light sources.Spectroscope 212 is coated with infrared band
Be all-trans the transmission film of film and visible light wave range.Spectroscope 212 can be obliquely installed between LED 111 and fly's-eye lens 112,
The infrared ray that infrared light supply 211 is launched is split after the reflection of mirror 212, by fly's-eye lens 112 and expands 113 even beam of microscope group and expansion
Shu Hou, into polarization spectro component 12, S-polarization light beam reflexes to image-display units 13 by polarization spectro component 12, and image shows
Show that unit 13 carries out light energy modulation to S-polarization light beam, the light beam after the modulation of image-display units 13 is converted to P polarization light
Beam, P polarization light beam enter in optical combiner 3 after being again passed through polarization spectro component 12.In the present embodiment, due to infrared light supply
211 beam Propagation process is consistent, therefore infrared emission list with the beam Propagation process that the image in image display 1 is shown
The infrared light of the transmitting of member 21 is the irradiation of face human eye and energy is concentrated, and capacity usage ratio is high, and infrared radiation is uniform.
In order to strengthen the infrared energy for being irradiated to human eye, alternatively, infrared emission unit 21 also includes infrared completely reflecting mirror
213.The infrared completely reflecting mirror 213 can will transmit through the infrared P polarization light beam of polarization spectro component 12 and be converted to S-polarization light
Beam, S-polarization light beam enters in optical combiner 3 after the reflection of polarization spectro component 12 after conversion.Further, infrared emission list
Member 21 can also include a quarter slide (in order to save length, not shown in figure).The a quarter slide is arranged at institute
State between infrared completely reflecting mirror 213 and polarization spectro component 12.Likewise, a quarter slide is for inclined by infrared P
The light beam that shakes is converted to S-polarization light beam.
As shown in fig. 7, Fig. 7 is the structure chart of augmented reality display device 100 in another embodiment.It is similar with Fig. 5, no
Be：Image display 1 does not include polarization spectro component 12.Lighting unit 11 also includes speculum 114.Image-display units
13 between the optical combiner 3 and lighting unit 11.Described image display unit 13 is transmissive display.
The illuminating bundle that lighting unit 11 exports is incident to image-display units 13, and image-display units 13 are according to now treating
The gray scale of display image carries out light energy modulation to illuminating bundle, and the light beam after modulation is directly entered in optical combiner 3.
Compared with the augmented reality display device 100 shown in Fig. 5, because image display 1 does not include polarization spectro component
12 so that the more compact structure of augmented reality display device 100, weight are lighter.
As shown in figure 8, Fig. 8 is the structure chart of augmented reality display device 100 in another embodiment.It is similar with Fig. 7, no
Be：Image-display units 13 are located at the lower section of the optical combiner 3.5th adjacent surface S345 is coated with polarization beam splitter,
The film that is all-trans without plating visible light wave range.4th entity 34 and the 5th entity 35 composition polarizing beam splitter.The polarization beam splitter makes
Obtain the 5th adjacent surface S345 to pass through S-polarization light, P polarization light is reflected.5th adjacent surface S345 and the first adjacent surface S312 and
Third phase proximal surface S334 incline direction is identical.
When it is implemented, when the light beam that lighting unit 11 exports is transmitted through the 5th adjacent surface S345, the S in illuminating bundle is inclined
The light beam that shakes is transmitted to image-display units 13, and image-display units 13 are according to the gray scale of now image to be displayed to S-polarization light beam
Light energy modulation is carried out, the light beam after the modulation of image-display units 13 is converted to P polarization light beam, and P polarization light beam is again by the
Five adjacent surface S345 reflect.
Compared with the augmented reality display device 100 shown in Fig. 5, because image display 1 shares the portion of optical combiner 3
Divide component so that the more compact structure of augmented reality display device 100, weight are lighter.
For the structure shown in Fig. 2, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, bridgeware 30 is the end face S355 of the 5th entity 35, institute
It is continuous convex surface to state end face S355.In other embodiments, when bridgeware 30 is the end face S355 of the 5th entity 35,
The end face S355 can also be substituted with the diffraction structure with same light convergence function.As that can select in known technology
Hologram diffraction or binary diffraction structure.Alternatively, the end face S355 is diffraction plane.The diffraction plane is to lose in the plane
Be carved with the binary diffraction structure to infrared light with diffraction function or on a transparent substrate in a manner of optical veneering gluing has diffraction
The hologram diffraction flat-panel component of functional membrane.
In addition, the bridgeware 30 can also include plane and imaging lens arrangement 301, as shown in Figure 9.The plane is
The end face S355 of 5th entity 35.The imaging lens arrangement 301 be arranged at optical combiner 3 and infrared receiver 22 it
Between.The group that imaging lens arrangement 301 is formed with the 5th entity 35 in optical combiner 3, the 4th entity 34 and the 3rd entity 33
Closing lens group has the equivalent optical imaging effect of the positive focus lens described in the respective embodiments described above.The imaging lens arrangement
301 can be to focus imaging lens arrangement 301 or varifocal imaging lens subassembly 301.
For example, this imaging lens arrangement 301 is autozoom lens group.Because each user and augmented reality are shown
The distance of device 100 varies with each individual, and autozoom lens group can set the different focal lengths of lens according to different users,
To obtain best optical imaging effect.Autozoom lens group can use known technology in liquid lens, liquid crystal lens,
Mechanical zoom lens group etc. has the lens module of zoom function.Optionally, the imaging lens arrangement 301 in the present embodiment is liquid
Brilliant lens.In specific implementation process, liquid crystal lens are first put in order to receive the infrared of human eye without coke-like state, infrared receiver 22
Picture, when infrared receiver 22 detect imaging it is unintelligible after, liquid crystal lens by continuous modulation to having different focal lengths, every time
When liquid crystal lens are modulated onto the focal length of a certain determination, the infrared image of the human eye of reception of infrared receiver 22 carries out detection and sentenced
Whether the infrared imaging of disconnected human eye is clear, and after detecting that human eye infrared imaging is clear, the focal length of liquid crystal lens holding now is not
Become.When user uses above-mentioned augmented reality display device 100 each time, autozoom lens group all proceeds as described above, with
Ensure that infrared receiver 22 obtains the clear imaging picture of looking straight of human eye.
Augmented reality display device 100 provided in an embodiment of the present invention, realize infrared receiver 22 and do not have to face people
Eye be obtained with image of clearly looking straight, do not disturb reception of the user to real world light, available for eye tracking,
Iris recognition identification checking etc..
Any feature disclosed in this specification (including any accessory claim, summary and accompanying drawing), except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of augmented reality display device, it is characterised in that including image display, optical combiner and infrared receiving/transmission mould
Group, the optical combiner include the bridgeware that plane wave can be converted to spherical wave, and the infrared receiving/transmission module includes infrared
Receiving unit and infrared emission unit；
The optical axis of the optical axis of the bridgeware and the infrared receiver is substantial parallel or coaxial；
The image light exported by described image display, amplify through the optical combiner and reflex to human eye formation virtual graph
Picture, the virtual display for the artificial additional information to real world；Real world light passes through the optics group
Clutch is directly transmitted into human eye；The infrared light covering human eye scope of the infrared emission unit transmitting, human eye is through the optics
The human eye virtual image after combiner projection is obtained by the infrared receiver.
2. augmented reality display device according to claim 1, it is characterised in that the bridgeware is diffraction plane or company
Continuous convex surface.
3. augmented reality display device according to claim 1, it is characterised in that the bridgeware includes plane and imaging
Lens subassembly.
4. augmented reality display device according to claim 3, it is characterised in that the imaging lens arrangement is to focus into
As lens subassembly or varifocal imaging lens subassembly.
5. augmented reality display device according to claim 3, it is characterised in that the imaging lens arrangement is that liquid crystal is saturating
It is at least one in mirror, liquid lens and mechanical zoom lens group.
6. according to the augmented reality display device described in claim any one of 1-5, it is characterised in that described image display is
Self-luminous display.
7. according to the augmented reality display device described in claim any one of 1-5, it is characterised in that described image display bag
Image-display units, polarization spectro component and lighting source are included, described image display unit is reflective；
The light beam of lighting unit output is transmitted through the polarization spectro component, and S-polarization light beam reflexes to institute by polarization spectro component
Image-display units are stated, described image display unit carries out light energy according to the gray scale of now image to be displayed to S-polarization light beam
Modulation, the light beam after the modulation of described image display unit are converted to P polarization light beam, and P polarization light beam is again passed through the polarization
Enter after spectrum groupware in the optical combiner.
8. according to the augmented reality display device described in claim any one of 1-5, it is characterised in that the infrared emission unit
It is integrated in one with described image display.
9. according to the augmented reality display device described in claim any one of 1-5, it is characterised in that described image display bag
Image-display units and lighting unit are included, described image display unit is transmission-type；
The illuminating bundle of lighting unit output is incident to image-display units, and image-display units are according to now image to be displayed
Gray scale carries out light energy modulation to illuminating bundle, and the light beam after modulation is directly entered in optical combiner.
10. according to the augmented reality display device described in claim any one of 1-5, it is characterised in that described image display
Including image-display units and lighting unit, described image display unit is reflective, is provided with the optical combiner
Polarization beam splitter；
The light beam of lighting unit output is transmitted through the polarization beam splitter, and the S-polarization light beam in illuminating bundle is transmitted to figure
As display unit, described image display unit carries out light energy modulation according to the gray scale of now image to be displayed to S-polarization light beam,
Light beam after the modulation of described image display unit is converted to P polarization light beam, and P polarization light beam is anti-by the polarization beam splitter again
Penetrate.
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| CN201711171484.6A CN107678166A (en) | 2017-11-22 | 2017-11-22 | Augmented reality display device |
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| CN201711171484.6A CN107678166A (en) | 2017-11-22 | 2017-11-22 | Augmented reality display device |
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