CN108333777A - Nearly eye shows optics module and near-eye display system - Google Patents
Nearly eye shows optics module and near-eye display system Download PDFInfo
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- CN108333777A CN108333777A CN201810357204.9A CN201810357204A CN108333777A CN 108333777 A CN108333777 A CN 108333777A CN 201810357204 A CN201810357204 A CN 201810357204A CN 108333777 A CN108333777 A CN 108333777A
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- reflection
- subgraph
- polarization direction
- amplifier element
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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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
A kind of nearly eye of present invention offer shows optics module and near-eye display system.The near-eye display system includes that nearly eye shows optics module and image display device.The nearly eye shows that optics module includes electrically-controlled liquid crystal polarizer, automatically controlled optical device, the first reflection amplifier element, the second reflection amplifier element, phase delay chip and reflecting element.Image display device is sequentially output the first beam subgraph light and the second beam subgraph light of an image to be displayed, is assembled the first subgraph to be shown formed and the second subgraph to be shown by the first reflection amplifier element and the second reflection amplifier element reflection and can be visually spliced into image to be displayed in user.The nearly eye shows that optics module and near-eye display system have the characteristics that big visual field, high-resolution, and relative to the nearly eye display optics module and near-eye display system small volume for showing optics module with tradition.
Description
Technical field
The present invention relates to augmented reality fields, show that optics module and nearly eye are aobvious in particular to a kind of nearly eye
Show system.
Background technology
Augmented reality (AR, Augmented Reality) is to carry out reality to real scene using dummy object or information
The technology of enhancing is widely used in each field such as scientific research, military affairs, industry, game, video, education.At present mainstream be applied to increase
The near-eye display system of strong reality, generally uses miniature image display as image source, and tradition is coordinated to show optics module
(half-reflection and half-transmission plane mirror and traditional visual system) realizes enhancing display.It is limited to existing technology and technological level, it is micro-
The resolution ratio of type image display is difficult to improve.Also, tradition shows the display visual field and display optics module of optics module
Volume is closely related.Increase and show visual field, tradition shows that the volume of optics module can increase severely therewith.Therefore, mainstream is answered at present
Near-eye display system for augmented reality has that resolution ratio is low and visual field is small or bulky problem.
Invention content
In view of this, the purpose of the present invention is to provide a kind of nearly eyes of compact of large visual field high resolution to show optics
Module and near-eye display system, to solve the above problems.
To achieve the above object, the present invention provides the following technical solutions：
Present pre-ferred embodiments provide a kind of nearly eye display optics module, including electrically-controlled liquid crystal polarizer, automatically controlled light
Learn device, the first reflection amplifier element, the second reflection amplifier element, phase delay chip and reflecting element；
Image display device is sequentially output the first beam subgraph light and the second beam subgraph light of image to be displayed,
In, the first beam subgraph light and the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction, often
Width image to be displayed includes the first subgraph to be shown and the second subgraph to be shown, the first beam subgraph light and first
Subgraph to be shown corresponds to, and the second beam subgraph light is corresponding with the second subgraph to be shown；
The electrically-controlled liquid crystal polarizer is set on the emitting light path of described image display device, for applying control
After voltage, the polarization direction of incident the first beam subgraph light or the second beam subgraph light is changed to the second linear polarization side
To second linear polarization direction and the first linear polarization direction are orthogonal；
The automatically controlled optical device setting is used between the electrically-controlled liquid crystal polarizer and the first reflection amplifier element
After applying and controlling voltage, to the first incident beam subgraph light into line convergence or diverging；
The first reflection amplifier element and the second reflection amplifier element are set in turn in going out for the automatically controlled optical device
It penetrates in light path, reflects convergent component for polarization sensitive, be respectively used to make the first beam subgraph light to form described the in human eye
One subgraph to be shown and the second beam subgraph light is made to form the described second subgraph to be shown in human eye；
The phase delay chip is set between the second reflection amplifier element and reflecting element, is used for the second beam subgraph
The polarization direction of light is converted to elliptical polarization direction or circular polarization, and convergence or anti-will be reflected from the reflecting element
The polarization direction for the second beam subgraph light for penetrating elliptical polarization direction or circular polarization that diverging is returned is converted to non-first
Linear polarization direction or non-second linear polarization direction；
The reflecting element is for reflecting the second beam subgraph light of elliptical polarization direction or circular polarization
It assembles or reflection dissipates；
The the first beam subgraph light and the second beam subgraph light of image to be displayed have been exported in described image display device
After line, the described first subgraph to be shown and the second subgraph to be shown that are formed in human eye can be visually spliced into user
The image to be displayed；
Real world light passes through the nearly eye to show that optics module enters human eye and forms ambient image.
Optionally, the automatically controlled optical device is used for after applying control voltage, to the first incident beam subgraph light
Into line convergence, the focal plane for applying the automatically controlled optical device after voltage is located at the automatically controlled optical device and the first reflection amplifier element
Between；
The reflecting element is for reflecting the second beam subgraph light of elliptical polarization direction or circular polarization
It assembles, the reflection focal plane of reflecting element is set to the side of the nearly second reflection amplifier element of reflecting element.
Optionally, the automatically controlled optical device is used for after applying control voltage, to the first incident beam subgraph light
It is dissipated, the focal plane for applying the automatically controlled optical device after voltage is located at automatically controlled optical device close to electrically-controlled liquid crystal polarizer
Side；
The reflecting element is for reflecting the second beam subgraph light of elliptical polarization direction or circular polarization
Diverging, the reflection focal plane of the reflecting element are set to side of the reflecting element far from phase delay chip.
Optionally, the first reflection amplifier element and the second reflection amplifier element are arranged to the first linear polarization side
To subgraph light carry out reflection and convergence and the subgraph light of the second linear polarization direction transmitted.
Optionally, the first reflection amplifier element and the second reflection amplifier element are arranged to the second linear polarization side
To subgraph light carry out reflection and convergence and the subgraph light of the first linear polarization direction transmitted.
Optionally, the nearly eye shows that optics module further includes that setting is reflected in the first reflection amplifier element and second
Polarization conversion device between amplifier element, and the second reflection amplifier element and first reflects the Polarization-Sensitive of amplifier element
Type is different.
Optionally, the nearly eye shows that optics module further includes that setting is reflected in the first reflection amplifier element and second
The absorption-type polarizer in direction is assembled in the reflection of amplifier element.
Optionally, the nearly eye shows that optics module further includes beam expander system.
Optionally, the nearly eye shows that optics module further includes light beam shrink beam system.
Another preferred embodiment of the present invention also provides a kind of near-eye display system, including image display device and above-mentioned close
Eye shows optics module.
Nearly eye provided in an embodiment of the present invention shows optics module and near-eye display system by polarizing member to electrically-controlled liquid crystal
Part, automatically controlled optical device, the first reflection amplifier element, second reflect the ingenious of amplifier element, phase delay chip and reflecting element
Integrated and design passes sequentially through the first reflection amplifier element and forms the first subgraph to be shown and the second reflection amplification member in human eye
Part forms the second subgraph to be shown in human eye makes the first subgraph to be shown formed in human eye using persistence of vision effect
With the second subgraph to be shown the image to be displayed is visually spliced into user.Therefore, which shows optics module
And the field angle of near-eye display system is equal to the sum of the field angle of the first reflection amplifier element and the second reflection amplifier element.And
And first the resolution ratio of subgraph to be shown and the second subgraph to be shown can identical and equal to image to be displayed resolution
Rate.Therefore the nearly eye is shown while optics module and near-eye display system are shown with big view field image with high-resolution, and
Show that the nearly eye applied to augmented reality of optics module shows optics module and near-eye display system body relative to tradition
Product is smaller.Meanwhile the nearly eye shows that the imaging method of optics module and near-eye display system based on catoptric imaging principle makes instead
The image no color differnece after assembling is penetrated, and the amplification imaging based on light pencil is so that the center and peripheral of amplified image has one
Cause clarity.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structural schematic diagram of near-eye display system provided in an embodiment of the present invention.
Fig. 2 is a kind of light path schematic diagram that near-eye display system shown in FIG. 1 shows image to be displayed.
Fig. 3 is another light path schematic diagram that near-eye display system shown in FIG. 1 shows image to be displayed.
Fig. 4 is the structural schematic diagram of near-eye display system in another embodiment.
Fig. 5 is the structural schematic diagram of near-eye display system in another embodiment.
Fig. 6 is the structural schematic diagram of near-eye display system in another embodiment.
Fig. 7 is the structural schematic diagram of near-eye display system in another embodiment.
Fig. 8 is the comparison diagram of the field angle of the near-eye display system without beam expander system.
Fig. 9 is the structural schematic diagram of near-eye display system in another embodiment.
Icon:The nearly eyes of 10- show optics module；1- near-eye display systems；50- image display devices；11- electrically-controlled liquid crystals are inclined
Shake element；The automatically controlled optical devices of 13-；15- first reflects amplifier element；17- second reflects amplifier element；19- phase delay chips；
21- reflecting elements；23- polarization conversion devices；25- absorption-type polarizers；27- beam expander systems；29- light beam shrink beams system
System.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the 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 arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present 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 the embodiment of the present invention, people in the art
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In description of the invention
In, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as only or imply opposite
Importance.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of near-eye display system 1 provided in an embodiment of the present invention.The nearly eye
Display system 1 can be applied to the augmented realities such as HMD (Head Mount Display, wear-type visual device), intelligent glasses
Equipment is not limited herein.The near-eye display system 1 includes that nearly eye shows optics module 10 and image display device 50.This is close
Eye shows that optics module 10 includes electrically-controlled liquid crystal polarizer 11, the reflection amplifier element 15, second of automatically controlled optical device 13, first
Reflect amplifier element 17, phase delay chip 19 and reflecting element 21.
When carrying out enhancing display, nearly eye shows that optics module 10 needs to coordinate with image display device 50, constitutes nearly eye
Display system 1.Image display device 50 is used to be sequentially output the first beam subgraph light and the second beam subgraph of image to be displayed
As light, and the first beam subgraph light and the second beam subgraph light are the collimation directional light with the first linear polarization direction
Beam.Wherein, image to be displayed is the virtual image that near-eye display system 1 is shown, i.e., to the artificial additional letter of real world
The virtual display of breath.Every width image to be displayed includes the first subgraph to be shown and the second subgraph to be shown.It is aobvious in order to improve
Show effect, the resolution ratio of the first subgraph to be shown and the second subgraph to be shown can be identical.And the first subgraph to be shown
It can be the same or different with the size of the second subgraph to be shown.The first beam subgraph light and the first son to be shown
Image corresponds to, i.e., described image display device 50 exports the first beam subgraph light according to the described first subgraph to be shown
Line.The second beam subgraph light is corresponding with the second subgraph to be shown, i.e., described image display device 50 is according to described
Two subgraphs to be shown export the second beam subgraph light.In actual implementation, the image display device 50 can be by
Transmission-type or reflective LOCS show source and can export the lighting source component of collimation parallel light and collectively constitute, can be with
It is to be collectively constituted by optical fiber scanning imaging system and colimated light system.In the present embodiment, which is by transmission-type
LOCS shows that source is collectively constituted with the lighting source component that can export collimation parallel light.
Electrically-controlled liquid crystal polarizer 11 is set on the emitting light path of image display device 50.Electrically-controlled liquid crystal polarizer 11
For after applying and controlling voltage, to the phase of incident light beam (the first beam subgraph light or the second beam subgraph light)
Position is changed, and the polarization direction of the first beam subgraph light or the second beam subgraph light is changed to the second linear polarization side
To.When electrically-controlled liquid crystal polarizer 11 apply control voltage after, when to the phase change π phases of incident light beam, institute
It states electrically-controlled liquid crystal polarizer 11 and is equivalent to 1/2 slide, then the first linear polarization direction and the second linear polarization direction are orthogonal.
That is the first beam subgraph light and the second beam subgraph light are the collimation directional light with the first linear polarization direction
The son of beam, the first beam subgraph light or the second beam subgraph light after electrically-controlled liquid crystal polarizer 11 carries out phase change
Image light is the collimation collimated light beam with the second linear polarization direction.Wherein, the first linear polarization direction and second linear
Polarization direction is orthogonal.
The setting of automatically controlled optical device 13 is between electrically-controlled liquid crystal polarizer 11 and first reflects amplifier element 15.Automatically controlled light
Device 13 is learned when not applying control voltage, does not have convergence function to incident collimated light beam (the first beam subgraph light).
Automatically controlled optical device 13 has incident collimated light beam (the first beam subgraph light) and assembles work(when applying control voltage
Energy.When automatically controlled optical device 13 is in application control voltage, to incident collimated light beam into when line convergence, apply the electricity after voltage
Controlling the focal plane of optical device 13 can be located between the reflection amplifier element 15 of automatically controlled optical device 13 and first.
First reflection amplifier element 15 and second reflects the outgoing that amplifier element 17 is set in turn in automatically controlled optical device 13
In light path.It is to have reflection convergence function to incident light beam that first reflection amplifier element 15 and second, which reflects amplifier element 17,
Polarization sensitive reflecting element.First reflection amplifier element 15 and second reflects amplifier element 17 and is arranged to linear to first inclined
The subgraph light in direction (or second linear polarization direction) of shaking carries out reflection convergence, and to the second linear polarization direction (or
One linear polarization direction) subgraph light transmitted.That is, the first reflection amplifier element 15 and second reflects amplifier element 17
It is arranged to carry out reflection convergence to the subgraph light of the first linear polarization direction and to the subgraph of the second linear polarization direction
As light is transmitted.Or, the first reflection amplifier element 15 and second, which reflects amplifier element 17, is arranged to linear to second inclined
The subgraph light in direction of shaking carries out reflection and convergence and is transmitted to the subgraph light of the first linear polarization direction.
Phase delay chip 19 is set between the second reflection amplifier element 17 and reflecting element 21.Phase delay chip 19 is used for
The polarization direction of the subgraph light of first linear polarization direction (or second linear polarization direction) is converted into elliptical polarization side
To or circular polarization, and will be from the subgraph light in 21 reflected elliptical polarization direction of reflecting element or circular polarization
Line is converted to non-first linear polarization direction (or non-second linear polarization direction).Wherein, non-first linear polarization direction includes
Second linear polarization direction, non-second linear polarization direction include the first linear polarization direction.When phase delay chip 19 is 1/4 glass
When piece, phase delay chip 19 is used for the polarization of the subgraph light of the first linear polarization direction (or second linear polarization direction)
Direction is converted to circular polarization, and will completely be converted from the subgraph light of 21 reflected circular polarization of reflecting element
For the second linear polarization direction (or first linear polarization direction).
The son with elliptical polarization direction or circular polarization that reflecting element 21 is used to transmit from phase delay chip 19
The direction of image light towards the second reflection amplifier element 17 returns to transmission.The reflective operation face of reflecting element 21 has to parallel
The function that light beam is assembled.Reflecting element 21 can be concave reflection curved surface or be set as the reflection with concave reflection equivalent function
Diffraction plane.When the reflective operation of reflecting element 21 faces collimated light beam into when line convergence, the reflection focal plane of reflecting element 21 can
To be set to the side that reflecting element 21 nearly second reflects amplifier element 17.
It is arranged to the first linear polarization direction when the first reflection amplifier element 15 and second reflects amplifier element 17
When subgraph light carries out reflection convergence and transmitted to the subgraph light of the second linear polarization direction, present embodiment carries
It is as follows that the near-eye display system 1 of confession carries out the process that a virtual image is shown：One width image to be displayed is divided in the horizontal direction
For two subgraphs to be shown, it is denoted as the first subgraph to be shown and the second subgraph to be shown respectively.As shown in Fig. 2, image
Display device 50 exports the first beam subgraph light according to the first subgraph to be shown, and the first beam subgraph light is with first
The collimation collimated light beam of linear polarization direction.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11, to automatically controlled optical device
13 apply control voltage, and the first beam subgraph light with the first linear polarization direction is through after electrically-controlled liquid crystal polarizer 11
It is assembled by automatically controlled optical device 13, the first beam subgraph light with the first linear polarization direction after convergence is by the first reflection
The reflection of amplifier element 15 is assembled, and the first subgraph to be shown is formed in human eye.Image display device 50 is according to the second son to be shown
Image exports the second beam subgraph light, and the second beam subgraph light is the collimation directional light with the first linear polarization direction
Beam.Control voltage, the second beam subgraph light quilt with the first linear polarization direction are applied to electrically-controlled liquid crystal polarizer 11
Electrically-controlled liquid crystal polarizer 11 is converted to the second beam subgraph light with the second linear polarization direction.To automatically controlled optical device
13 do not apply control voltage, are arranged to linear to first since the first reflection amplifier element 15 and second reflects amplifier element 17
The subgraph light of polarization direction carries out reflection convergence and is transmitted to the subgraph light of the second linear polarization direction, then has
There is the second beam subgraph light of the second linear polarization direction to reflect amplifier element 15 through automatically controlled optical device 13, first successively
It is transmitted to phase delay chip 19 with the second reflection amplifier element 17.Reach phase delay chip 19 has the second linear polarization direction
The polarization direction of the second beam subgraph light elliptical polarization direction is converted to by phase delay chip 19 or circular polarization is subsequent
Continue and is transmitted to reflecting element 21, between converging at the reflection amplifier element 17 of reflecting element 21 and second by the reflection of reflecting element 21,
Its polarization direction is converted to non-second linearly partially by elliptical polarization direction or circular polarization after again passing by phase delay chip 19
Shake direction.Second beam subgraph of the first linear polarization direction in the second beam subgraph light of non-second linear polarization direction
Light is assembled by the second reflection reflection of amplifier element 17, and the second subgraph to be shown is formed in human eye.
In Fig. 2, the distance of the reflection amplifier elements 15 of refractive transmission focal plane SF9 to first of automatically controlled optical device 13 is denoted as
The distance of L92, the reflection reflection amplifier elements 17 of focal plane SF5 to second of reflecting element 21 are denoted as L53.Automatically controlled optical device 13 is right
The refraction convergent angle of the collimated light beam (the first beam subgraph light) transmitted from automatically controlled polarization conversion device 23 is denoted as afa9, reflection
Element 21 is denoted as the reflection convergent angle of the collimated light beam (the second beam subgraph light) transmitted from automatically controlled polarization conversion device 23
afa5.The size in the subgraph light direction shown in the figure that image display device 50 transmits is denoted as H1, the first reflection amplification member
Half height of effective aperture that part 15 and second reflects 17 direction shown in the figure of amplifier element is denoted as H2 and H3 respectively.Specific implementation
When, afa9 can be set and afa5 and L92 are consistent with L53, can also be set as inconsistent.It is consistent with afa5 by the way that afa9 is arranged,
And L92 is consistent with L53, can make the reflective diffractive structure and the second reflection amplifier element 17 of the first reflection amplifier element 15
Reflective diffractive structure is identical, can reduce the design, processing cost and assembly difficulty of each element, and more conducively close eye shows light
Learn the mass production of module 10.
Similarly, it is arranged to the second linear polarization side when the first reflection amplifier element 15 and second reflects amplifier element 17
To subgraph light carry out reflection convergence and when being transmitted to the subgraph light of the first linear polarization direction, this embodiment party
It is as follows that the near-eye display system 1 that formula provides carries out the process that a virtual image is shown：By a width image to be displayed in level side
To two subgraphs to be shown are divided into, it is denoted as the first subgraph to be shown and the second subgraph to be shown respectively.As shown in figure 3,
Image display device 50 exports the first beam subgraph light according to the first subgraph to be shown, the first beam subgraph light be with
The collimation collimated light beam of first linear polarization direction.Control voltage is applied to electrically-controlled liquid crystal polarizer 11, to automatically controlled optics device
Part 13 applies control voltage, and the first beam subgraph light with the first linear polarization direction is by 11 turns of electrically-controlled liquid crystal polarizer
It is changed to the first beam subgraph light with the second linear polarization direction, it should be with the first beam subgraph of the second linear polarization direction
As light is assembled by automatically controlled optical device 13, the first beam subgraph light with the second linear polarization direction after convergence is by
The one reflection reflection of amplifier element 15 is assembled, and the first subgraph to be shown is formed in human eye.Image display device 50 is waited for according to second
Show that subgraph exports the second beam subgraph light, the second beam subgraph light is flat for the collimation with the first linear polarization direction
Row light beam.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11 and automatically controlled optical device 13, there is the first linear polarization side
To the second beam subgraph light through electrically-controlled liquid crystal polarizer 11, automatically controlled optical device 13, first reflect amplifier element 15
It is transmitted to phase delay chip 19 with the second reflection amplifier element 17.Reach phase delay chip 19 has the first linear polarization direction
The polarization direction of the second beam subgraph light elliptical polarization direction is converted to by phase delay chip 19 or circular polarization is subsequent
Continue and is transmitted to reflecting element 21, between converging at the reflection amplifier element 17 of reflecting element 21 and second by the reflection of reflecting element 21,
Its polarization direction is converted to non-first linearly partially by elliptical polarization direction or circular polarization after again passing by phase delay chip 19
Shake direction.Second beam subgraph of the second linear polarization direction in the second beam subgraph light of non-first linear polarization direction
Light is assembled by the second reflection reflection of amplifier element 17, and the second subgraph to be shown is formed in human eye.
In above process, it is view to form the process of the first subgraph to be shown and the second subgraph to be shown in human eye
Film is imaged, therefore can be with blur-free imaging in entirely display field range.It can be exported by adjusting described image display device 50
The time interval of frequency and the every width image to be displayed of output per beam subgraph light, and coordinate adjustment electrically-controlled liquid crystal polarization member
The working condition etc. of part 11 and automatically controlled optical device 13, utilizes persistence of vision principle, so that it may so that be respectively formed in human eye
One subgraph to be shown and the second subgraph to be shown are visually spliced into the image to be displayed in user.
Real world light passes through the nearly eye to show that optics module 10 enters human eye and forms ambient image.
Nearly eye provided in an embodiment of the present invention shows that optics module 10 passes through to electrically-controlled liquid crystal polarizer 11, automatically controlled optics
Device 13, first reflects the ingenious collection that amplifier element 15, second reflects amplifier element 17, phase delay chip 19 and reflecting element 21
At with design, pass sequentially through the first reflection amplifier element 15 human eye formed the first subgraph to be shown and second reflection amplification member
Part 17 forms the second subgraph to be shown in human eye makes the first subgraph to be shown formed in human eye using persistence of vision effect
Picture and the second subgraph to be shown are visually spliced into the image to be displayed in user.Therefore, which shows optical mode
The field angle of group 10 is equal to the sum of the field angle that the first reflection amplifier element 15 and second reflects amplifier element 17.Also, first
The resolution ratio of subgraph to be shown and the second subgraph to be shown can identical and equal to image to be displayed resolution ratio.Therefore it should
Nearly eye shows while optics module 10 is shown with big view field image with high-resolution, and shows light relative to tradition
The nearly eye applied to augmented reality for learning module shows 10 small volume of optics module.Meanwhile the nearly eye shows optics module 10
Imaging method based on catoptric imaging principle makes the image no color differnece after reflection convergence, and the imaging of the amplification based on light pencil makes
The center and peripheral for obtaining amplified image has consistent clarity.
Conceived based on foregoing invention, the concrete structure of near-eye display system 1 is also possible that but is not limited to such as Fig. 4 to Fig. 8 institutes
Show.As can be seen that near-eye display system 1 shown in FIG. 1 has Fig. 2 and two kinds of operation principles shown in Fig. 3, shown in Fig. 2 and Fig. 3
Two kinds of operation principles it is similar, unlike：The first reflection amplifier element 15 and second reflects amplifier element 17 and is set in Fig. 2
Reflection convergence is carried out for the subgraph light to the first linear polarization direction and to the subgraph light of the second linear polarization direction
It is transmitted, and the first reflection reflection amplifier element 17 of amplifier element 15 and second is arranged to the second linear polarization in Fig. 3
The subgraph light in direction carries out reflection convergence and is transmitted to the subgraph light of the first linear polarization direction.Therefore, it is
Convenient for description, in the description of Fig. 4, only illustrated by taking operation principle shown in Fig. 2 as an example.
Referring to Fig. 4, Fig. 4 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different
It is：Automatically controlled optical device 13 has diverging when applying control voltage, to incident collimated light beam (the first beam subgraph light)
Function, and the focal plane for applying the automatically controlled optical device 13 after voltage is located at automatically controlled optical device 13 close to electrically-controlled liquid crystal polarizer
11 side.That is, automatically controlled optical device 13 apply control voltage when with saturating with the negative focal length to collimated light beam disperse function
The equivalent function of mirror.The reflective operation face of reflecting element 21 has the function of dissipating collimated light beam, the reflection of reflecting element 21
Focal plane is set to side of the reflecting element 21 far from phase delay chip 19.The first reflection reflection amplification member of amplifier element 15 and second
It is respectively set to have the function of that reflection is assembled to incident divergent beams.
As can be seen that compared to near-eye display system 1 shown in FIG. 1, with same image to be displayed display capabilities
In the case of, near-eye display system 1 shown in Fig. 4 has smaller size.
Referring to Fig. 5, Fig. 5 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different
It is：The nearly eye shows that optics module 10 further includes being arranged between the first reflection amplifier element 15 and second reflects amplifier element 17
Polarization conversion device 23, and the polarization sensitive of the second reflection amplifier element 17 and the first reflection amplifier element 15 is different.If
First reflection amplifier element 15 is arranged to carry out reflection convergence to the subgraph light of the first linear polarization direction and to second
The subgraph light of linear polarization direction is transmitted, then the second reflection amplifier element 17 is arranged to the second linear polarization side
To subgraph light carry out reflection and convergence and the subgraph light of the first linear polarization direction transmitted.If first is anti-
Penetrate amplifier element 15 be arranged to the subgraph light of the second linear polarization direction carry out reflection convergence and to first it is linear partially
The subgraph light in direction of shaking is transmitted, then the second reflection amplifier element 17 is arranged to the son to the first linear polarization direction
Image light carries out reflection convergence and is transmitted to the subgraph light of the second linear polarization direction.With linear polarization direction
Subgraph light often pass through polarization conversion device 23 can increase π phase delays so that subgraph light is inclined
The direction that shakes is converted to orthogonal polarization direction.
When the first reflection amplifier element 15 is arranged to carry out reflection meeting to the subgraph light of the first linear polarization direction
Gather and the subgraph light of the second linear polarization direction is transmitted, then the second reflection amplifier element 17 is arranged to second
The subgraph light of linear polarization direction carries out reflection convergence and is transmitted to the subgraph light of the first linear polarization direction,
Automatically controlled optical device 13 has convergence function when applying control voltage, to the first incident beam subgraph light, and applies electricity
The focal plane of automatically controlled optical device 13 after pressure is located at automatically controlled optical device 13 and first and reflects between amplifier element 15, reflecting element
21 reflection focal plane is set to the side that reflecting element 21 nearly second reflects amplifier element 17, carries out what a virtual image was shown
Process is as follows：Image display device 50 exports the first beam subgraph light, the first beam subgraph according to the first subgraph to be shown
Light is the collimation collimated light beam with the first linear polarization direction.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11,
Control voltage is applied to automatically controlled optical device 13, the first beam subgraph light with the first linear polarization direction penetrates automatically controlled liquid
It is assembled by automatically controlled optical device 13 after brilliant polarizer 11, the first beam subgraph with the first linear polarization direction after convergence
Light is assembled by the first reflection reflection of amplifier element 15, and the first subgraph to be shown is formed in human eye.Image display device 50
The second beam subgraph light is exported according to the second subgraph to be shown, the second beam subgraph light is with the first linear polarization direction
Collimation collimated light beam.Control voltage, the second beam with the first linear polarization direction are applied to electrically-controlled liquid crystal polarizer 11
Subgraph light is converted to the second beam subgraph light with the second linear polarization direction by electrically-controlled liquid crystal polarizer 11.It is right
Automatically controlled optical device 13 does not apply control voltage, should successively be penetrated with the second beam subgraph light of the second linear polarization direction
Automatically controlled optical device 13, first reflects amplifier element 15, and it is linear inclined to be converted to first through its polarization direction of polarization conversion device 23
It shakes and is transmitted to phase delay chip 19 through the second reflection amplifier element 17 behind direction.Reach phase delay chip 19 has First Line
Property polarization direction the polarization direction of the second beam subgraph light elliptical polarization direction is converted to by phase delay chip 19 or circle is inclined
It shakes and continues behind direction to transmit to reflecting element 21, the reflection amplification member of reflecting element 21 and second is converged at by the reflection of reflecting element 21
Between part 17, its polarization direction is converted to non-by elliptical polarization direction or circular polarization after again passing by phase delay chip 19
One linear polarization direction.Second of the second linear polarization direction in second beam subgraph light of non-first linear polarization direction
Beam subgraph light is assembled by the second reflection reflection of amplifier element 17, and the second subgraph to be shown is formed in human eye.
When the first reflection amplifier element 15 is arranged to carry out reflection meeting to the subgraph light of the second linear polarization direction
Gather and the subgraph light of the first linear polarization direction is transmitted, then the second reflection amplifier element 17 is arranged to first
The subgraph light of linear polarization direction carries out reflection convergence and is transmitted to the subgraph light of the second linear polarization direction,
Automatically controlled optical device 13 has convergence function when applying control voltage, to the first incident beam subgraph light, and applies electricity
The focal plane of automatically controlled optical device 13 after pressure is located at automatically controlled optical device 13 and first and reflects between amplifier element 15, reflecting element
21 reflection focal plane is set to the side that reflecting element 21 nearly second reflects amplifier element 17, carries out what a virtual image was shown
Process is as follows：Image display device 50 exports the first beam subgraph light, the first beam subgraph according to the first subgraph to be shown
Light is the collimation collimated light beam with the first linear polarization direction.Control voltage is applied to electrically-controlled liquid crystal polarizer 11, it is right
Automatically controlled optical device 13 applies control voltage, and the first beam subgraph light with the first linear polarization direction is inclined by electrically-controlled liquid crystal
The element 11 that shakes is converted to the first beam subgraph light with the second linear polarization direction, should be with the second linear polarization direction
First beam subgraph light is assembled by automatically controlled optical device 13, the first beam subgraph with the second linear polarization direction after convergence
It is assembled as light is reflected by the first reflection amplifier element 15, the first subgraph to be shown is formed in human eye.Image display device 50
The second beam subgraph light is exported according to the second subgraph to be shown, the second beam subgraph light is with the first linear polarization side
To collimation collimated light beam.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11 and automatically controlled optical device 13, has first
Second beam subgraph light of linear polarization direction is reflected through electrically-controlled liquid crystal polarizer 11, automatically controlled optical device 13 and first
Amplifier element 15, its polarization direction is put after being converted to the second linear polarization direction through the second reflection after polarization conversion device 23
Big element 17 is transmitted to phase delay chip 19.Reach the second beam subgraph with the second linear polarization direction of phase delay chip 19
Continue to reflecting element after being converted to elliptical polarization direction or circular polarization by phase delay chip 19 as the polarization direction of light
21 transmission again pass by phase between converging at the reflection amplifier element 17 of reflecting element 21 and second by the reflection of reflecting element 21
Its polarization direction is converted to non-second linear polarization direction by elliptical polarization direction or circular polarization after delay piece 19.Non- second
Second beam subgraph light of the first linear polarization direction in the second beam subgraph light of linear polarization direction is anti-by second
It penetrates the reflection of amplifier element 17 to assemble, the second subgraph to be shown is formed in human eye.
It is shown it is clear that the polarization conversion device 23 can also be applied to the nearly eye that other embodiment of the present invention provides
In system 1, to save length, therefore not to repeat here.
As shown in fig. 6, Fig. 6 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different
It is：The nearly eye shows that optics module 10 further includes absorption-type polarizer 25, and the first reflection reflection of amplifier element 15 and second is put
Big element 17 is the concave reflection convergent component with continuous curve surface.The absorption-type polarizer 25 setting is in the first reflection amplification
Direction is assembled in the reflection that element 15 and second reflects amplifier element 17, for the second linear polarization direction (or first it is linear partially
Shake direction) subgraph light absorbed, to the subgraph light of the first linear polarization direction (or second linear polarization direction)
Line is penetrated, and to eliminate background interference, improves the contrast of the first subgraph to be shown and the second subgraph to be shown.When
First reflection amplifier element 15 and second reflects amplifier element 17 and is arranged to the subgraph light to the first linear polarization direction
Carry out reflection convergence and when being transmitted to the subgraph light of the second linear polarization direction, absorption-type polarizer 25 for pair
The subgraph light of second linear polarization direction is absorbed, and is penetrated to the subgraph light of the first linear polarization direction.
It is arranged to the subgraph light to the second linear polarization direction when the first reflection amplifier element 15 and second reflects amplifier element 17
When line carries out reflection convergence and transmitted to the subgraph light of the first linear polarization direction, absorption-type polarizer 25 is used for
The subgraph light of first linear polarization direction is absorbed, the subgraph light of the second linear polarization direction is carried out saturating
It crosses.
It is arranged to the first linear polarization direction when the first reflection amplifier element 15 and second reflects amplifier element 17
When subgraph light carries out reflection convergence and is transmitted to the subgraph light of the second linear polarization direction, absorption-type polarization member
Part 25 is for absorbing the subgraph light of the second linear polarization direction.Automatically controlled optical device 13 is applying control voltage
When, there is convergence function to the first incident beam subgraph light, and apply the focal plane position of the automatically controlled optical device 13 after voltage
Between automatically controlled optical device 13 and first reflects amplifier element 15, the reflection focal plane of reflecting element 21 is set to reflecting element 21
The side of nearly second reflection amplifier element 17.When carrying out a virtual image display, image display device 50 is waited for according to first
Show that subgraph exports the first beam subgraph light, the first beam subgraph light is flat for the collimation with the first linear polarization direction
Row light beam.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11, control voltage is applied to automatically controlled optical device 13, has the
First beam subgraph light of one linear polarization direction is assembled after penetrating electrically-controlled liquid crystal polarizer 11 by automatically controlled optical device 13,
The first beam subgraph light with the first linear polarization direction after convergence, it is most of to be reflected by the first reflection amplifier element 15
It assembles, and through absorption-type polarizer 25, the first subgraph to be shown is formed in human eye；Fraction amplifies through the first reflection
Element 15, second reflects after amplifier element 17 and phase delay chip 19 again passes by phase delay chip by the reflection of reflecting element 21
19, polarization direction is converted to the second linear polarization direction by the first linear polarization direction, should be with the second linear polarization direction
Fraction in first beam subgraph light absorbed by absorption-type polarizer 25 after being reflected by the second reflection amplifier element 17 (and
Major part therein is through the second reflection amplifier element 17).Image display device 50 is according to the second subgraph to be shown output the
Two beam subgraph light, the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction.To automatically controlled liquid
Brilliant polarizer 11 applies control voltage, and the second beam subgraph light with the first linear polarization direction is polarized by electrically-controlled liquid crystal
Element 11 is converted to the second beam subgraph light with the second linear polarization direction.Control is not applied to automatically controlled optical device 13
Voltage, should the second beam subgraph light with the second linear polarization direction largely through the first reflection amplifier element 15, the
Phase delay chip 19 is again passed by by the reflection of reflecting element 21 after two reflection amplifier elements 17 and phase delay chip 19, is prolonged by phase
Slow piece 19 is converted to the second beam subgraph light of non-second linear polarization direction, the second beam of non-second linear polarization direction
Second beam subgraph light of the first linear polarization direction in image light is assembled by the second reflection reflection of amplifier element 17, thoroughly
Absorption-type polarizer 25 is crossed, the second subgraph to be shown is formed in human eye.This has the second beam of the second linear polarization direction
It is absorbed by absorption-type polarizer 25 after fraction is reflected by the first reflection amplifier element 15 in subgraph light.
It is arranged to the second linear polarization direction when the first reflection amplifier element 15 and second reflects amplifier element 17
When subgraph light carries out reflection convergence and is transmitted to the subgraph light of the first linear polarization direction, absorption-type polarization member
Part 25 is for absorbing the subgraph light of the first linear polarization direction.Automatically controlled optical device 13 is applying control voltage
When, there is convergence function to the first incident beam subgraph light, and apply the focal plane position of the automatically controlled optical device 13 after voltage
Between automatically controlled optical device 13 and first reflects amplifier element 15, the reflection focal plane of reflecting element 21 is set to reflecting element 21
The side of nearly second reflection amplifier element 17.When carrying out a virtual image display, image display device 50 is waited for according to first
Show that subgraph exports the first beam subgraph light, the first beam subgraph light is flat for the collimation with the first linear polarization direction
Row light beam.Control voltage is applied to electrically-controlled liquid crystal polarizer 11, control voltage is applied to automatically controlled optical device 13, has first
First beam subgraph light of linear polarization direction is converted to by electrically-controlled liquid crystal polarizer 11 with the second linear polarization direction
The first beam subgraph light, should with the second linear polarization direction first beam subgraph light by 13 meeting of automatically controlled optical device
Poly-, the first beam subgraph light with the second linear polarization direction after convergence is most of anti-by the first reflection amplifier element 15
Convergence is penetrated, through absorption-type polarizer 25, the first subgraph to be shown is formed in human eye；Fraction amplifies through the first reflection
Element 15, second reflects after amplifier element 17 and phase delay chip 19 again passes by phase delay chip by the reflection of reflecting element 21
19, polarization direction is converted to the first linear polarization direction by the second linear polarization direction, should be with the first linear polarization direction
Fraction in first beam subgraph light absorbed by absorption-type polarizer 25 after being reflected by the second reflection amplifier element 17 (and
Major part therein is through the second reflection amplifier element 17).Image display device 50 is according to the second subgraph to be shown output the
Two beam subgraph light, the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction.To automatically controlled liquid
Brilliant polarizer 11 and automatically controlled optical device 13 do not apply control voltage, the second beam subgraph with the first linear polarization direction
Light largely reflects amplifier element 17 through the first reflection amplifier element 15 and second to be transmitted to phase delay chip 19.This has
Second beam subgraph light of the first linear polarization direction is largely through the first reflection reflection amplification member of amplifier element 15, second
Phase delay chip 19 is again passed by by the reflection of reflecting element 21 after part 17 and phase delay chip 19, is converted to by phase delay chip 19
Second beam subgraph light of non-first linear polarization direction, in the second beam subgraph light of non-first linear polarization direction
Second beam subgraph light of the second linear polarization direction is assembled by the second reflection reflection of amplifier element 17, is polarized through absorption-type
Element 25 forms the second subgraph to be shown in human eye.This has in the second beam subgraph light of the first linear polarization direction
Fraction is absorbed after being reflected by the first reflection amplifier element 15 by absorption-type polarizer 25.
It similarly, can also be to incident collimated light beam (the first beam when automatically controlled optical device 13 is in application control voltage
Image light) have the function of diverging, and the focal plane for applying the automatically controlled optical device 13 after voltage is located at automatically controlled optical device 13 and leans on
The side of nearly electrically-controlled liquid crystal polarizer 11, the reflective operation face of reflecting element 21 have the function of dissipating collimated light beam, instead
The reflection focal plane for penetrating element 21 is set to side of the reflecting element 21 far from phase delay chip 19, the first reflection 15 He of amplifier element
When second reflection amplification member is respectively set to have the function of that reflection is assembled to incident divergent beams, the absorption-type polarizer
25 can also apply, and to save length, therefore not to repeat here.
Since the reflective operation face that the first reflection amplifier element 15 and second reflects amplifier element 17 is continuous concave surface curved surface,
The reflection of polarization film layer that its concave surface is coated with theoretically with can not accomplish completely in practical process for plating have absolutely
The transmission or the second linear polarization direction reflection diffraction of first linear polarization direction reflection diffraction and the second linear polarization direction and
The transmission of first linear polarization direction, therefore the absorption-type polarizer 25 setting is anti-in the first reflection amplifier element 15 and second
Direction is assembled in the reflection for penetrating amplifier element 17, can be to the subgraph of the second linear polarization direction (or first linear polarization direction)
Light is absorbed, and to eliminate background interference, improves the contrast of the first subgraph to be shown and the second subgraph to be shown.
Similarly, optics module 10 is shown for Fig. 1, Fig. 4, Fig. 5, Fig. 7 and nearly eye shown in Fig. 9, it can also be anti-first
The reflection convergence direction setting absorption-type polarizer 25 that amplifier element 15 and second reflects amplifier element 17 is penetrated, to eliminate background
Interference improves the contrast of the first subgraph to be shown and the second subgraph to be shown, and therefore not to repeat here.Shown in Fig. 6
Near-eye display system 1, can respectively first reflection amplifier element 15 and second reflect amplifier element 17 reflection convergence side
To a kind of absorption-type polarizer is arranged, it is respectively used to absorb the subgraph of the first linear polarization direction and the second linear polarization direction
As light is absorbed.
Referring to Fig. 7, Fig. 7 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different
It is：The nearly eye shows that optics module 10 further includes beam expander system 27, and the beam expander system 27 is set to electrically-controlled liquid crystal
Side of the polarizer 11 far from the first reflection amplifier element 15.The beam expander system 27 will be for that will have small size
The light beam of hot spot is converted to the light beam with large scale hot spot.The beam expander system 27 can be applied not only to shown in FIG. 1
Nearly eye shows optics module 10 to form structure shown in Fig. 7, can also be applied to nearly eye shown in fig. 4 to fig. 6 and show light
It learns in module 10 to form new structure, small size hot spot described herein refers to that the spot size of light beam is more automatically controlled than what is pre-seted
Effective optics bore needed for optical device 13 is small, and the large scale hot spot refers to the spot size of light beam and the electricity that pre-sets
The effective optics bore controlled needed for optical device 13 is consistent.
Beam expander system 27 usually can be inverted telescopic system, and telescopic system is generally made of object lens and eyepiece,
The rear focus of object lens and the object focus of eyepiece overlap, and have two kinds of structure types of Kepler and Galileo.Telescopic system falls
It sets in use, the light beam with small size hot spot first passes around eyepiece and is converged or dissipates, then is collimated as with big ruler by object lens
The light beam of very little hot spot.By using beam expander system 27 in the present embodiment so that the image with small size hot spot light beam is aobvious
Showing device 50 can obtain big light beam convergence angle, so as to realize big display field angle.As shown in Figure 7 and Figure 8, have
There is the image display device 50 of small size hot spot light beam by the first reflection amplifier element 15 to reflect amplified field angle afa2 small
The image display device 50 with large scale hot spot light beam after being expanded by beam expander system 27 is amplified by the first reflection
Element 15 reflects amplified field angle afa1.
As shown in figure 9, Fig. 9 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different
It is：The nearly eye shows that optics module 10 further includes light beam shrink beam system 29, and the light beam shrink beam system 29 is set to electrically-controlled liquid crystal
Side of the polarizer 11 far from the first reflection amplifier element 15.The beam expander system 27 will be for that will have large scale
The light beam of hot spot is converted to the light beam with small size hot spot.The light beam shrink beam system 29 can be applied not only to shown in FIG. 1
Nearly eye shows optics module 10 to form structure shown in Fig. 7, can also be applied to nearly eye shown in fig. 4 to fig. 6 and show light
It learns in module 10 to form new structure, small size hot spot described herein refers to that the spot size of light beam is more automatically controlled than what is pre-seted
Effective optics bore needed for optical device 13 is small, and the large scale hot spot refers to the spot size of light beam and the electricity that pre-sets
The effective optics bore controlled needed for optical device 13 is consistent.
Light beam shrink beam system 29 usually can be a telescopic system, and telescopic system is in use, the light with large scale hot spot
Beam first passes around object lens and is converged or dissipates, then it is the light beam with small size hot spot to be collimated by eyepiece.Pass through in the present embodiment
Use light beam shrink beam system 29 so that the image display device 50 with large scale hot spot light beam can be put by the first reflection completely
Big element 15 or second reflects the reflection of amplifier element 17 and amplifies, by using light beam shrink beam system 29 so that big ruler in the present embodiment
Very little image display device 50 can be used in the nearly eye and show optics module 10 and can obtain optimal energy utilization.
Nearly eye provided in an embodiment of the present invention shows optics module 10 and near-eye display system 1 by being polarized to electrically-controlled liquid crystal
Element 11, automatically controlled optical device 13, first reflect amplifier element 15, second and reflect amplifier element 17, phase delay chip 19 and anti-
The ingenious integrated and design for penetrating element 21 passes sequentially through the first reflection amplifier element 15 and forms the first subgraph to be shown in human eye
Form the second subgraph to be shown in human eye with the second reflection amplifier element 17 makes to be formed in human eye using persistence of vision effect
The first subgraph to be shown and the second subgraph to be shown be visually spliced into the image to be displayed in user.Therefore,
The nearly eye shows that the field angle of optics module 10 and near-eye display system 1 is put equal to the first reflection reflection of amplifier element 15 and second
The sum of the field angle of big element 17.Also, the resolution ratio of the first subgraph to be shown and the second subgraph to be shown can be identical
And equal to the resolution ratio of image to be displayed.Therefore the nearly eye shows that optics module 10 and near-eye display system 1 have big view field image
There is high-resolution while display, and show that the nearly eye applied to augmented reality of optics module is shown relative to tradition
1 small volume of optics module 10 and near-eye display system.Meanwhile the nearly eye shows optics module 10 and 1 base of near-eye display system
Image no color differnece after the imaging method of catoptric imaging principle makes reflection assemble, and the amplification based on light pencil is imaged and makes
The center and peripheral of amplified image has consistent clarity.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
It states, can be replaced by other alternative features that are equivalent or have similar purpose.That is, unless specifically stated, each feature is only
It is an example in a series of equivalent or similar characteristics.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of nearly eye shows optics module, which is characterized in that including electrically-controlled liquid crystal polarizer, automatically controlled optical device, first
Reflect amplifier element, the second reflection amplifier element, phase delay chip and reflecting element；
Image display device is sequentially output the first beam subgraph light and the second beam subgraph light of image to be displayed, wherein
First beam subgraph light and the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction, and every width waits for
Show that image includes the first subgraph to be shown and the second subgraph to be shown, the first beam subgraph light waits showing with first
Show that subgraph corresponds to, the second beam subgraph light is corresponding with the second subgraph to be shown；
The electrically-controlled liquid crystal polarizer is set on the emitting light path of described image display device, for applying control voltage
Afterwards, the polarization direction of incident the first beam subgraph light or the second beam subgraph light is changed to the second linear polarization direction,
Second linear polarization direction and the first linear polarization direction are orthogonal；
The automatically controlled optical device setting is between the electrically-controlled liquid crystal polarizer and the first reflection amplifier element, for applying
After adding control voltage, to the first incident beam subgraph light into line convergence or diverging；
The first reflection amplifier element and the second reflection amplifier element are set in turn in the emergent light of the automatically controlled optical device
On the road, it is that polarization sensitive reflects convergent component, being respectively used to, which makes the first beam subgraph light form described first in human eye, waits for
It shows subgraph and the second beam subgraph light is made to form the described second subgraph to be shown in human eye；
The phase delay chip is set between the second reflection amplifier element and reflecting element, is used for the second beam subgraph light
Polarization direction be converted to elliptical polarization direction or circular polarization, and will reflect and assemble or reflection hair from the reflecting element
The polarization direction for dissipating the second beam subgraph light of elliptical polarization direction back or circular polarization is converted to non-first linearly
Polarization direction or non-second linear polarization direction；
The reflecting element to the second beam subgraph light of elliptical polarization direction or circular polarization for carrying out reflection convergence
Or reflection diverging；
After described image display device has exported the first beam subgraph light and the second beam subgraph light of image to be displayed,
The described first subgraph to be shown and the second subgraph to be shown formed in human eye can visually be spliced into described in user
Image to be displayed；
Real world light passes through the nearly eye to show that optics module enters human eye and forms ambient image.
2. nearly eye according to claim 1 shows optics module, which is characterized in that the automatically controlled optical device is for applying
After adding control voltage, to the first incident beam subgraph light into line convergence, apply the focal plane of the automatically controlled optical device after voltage
Between the automatically controlled optical device and the first reflection amplifier element；
The reflecting element is used to carry out reflection convergence to the second beam subgraph light of elliptical polarization direction or circular polarization,
The reflection focal plane of reflecting element is set to the side of the nearly second reflection amplifier element of reflecting element.
3. nearly eye according to claim 1 shows optics module, which is characterized in that the automatically controlled optical device is for applying
After adding control voltage, the first incident beam subgraph light is dissipated, applies the focal plane of the automatically controlled optical device after voltage
Positioned at automatically controlled optical device close to the side of electrically-controlled liquid crystal polarizer；
The reflecting element is used to carry out reflection diverging to the second beam subgraph light of elliptical polarization direction or circular polarization,
The reflection focal plane of the reflecting element is set to side of the reflecting element far from phase delay chip.
4. nearly eye according to claim 2 or 3 shows optics module, which is characterized in that the first reflection amplifier element
It is arranged to carry out reflection convergence to the subgraph light of the first linear polarization direction and to second with the second reflection amplifier element
The subgraph light of linear polarization direction is transmitted.
5. nearly eye according to claim 2 or 3 shows optics module, which is characterized in that the first reflection amplifier element
It is arranged to carry out reflection convergence to the subgraph light of the second linear polarization direction and to first with the second reflection amplifier element
The subgraph light of linear polarization direction is transmitted.
6. showing optics module according to the nearly eye of claim 1-3 any one of them, which is characterized in that the nearly eye shows optics
Module further includes being arranged to reflect the polarization conversion device between amplifier element, and institute in the first reflection amplifier element and second
The polarization sensitive for stating the second reflection amplifier element and the first reflection amplifier element is different.
7. showing optics module according to the nearly eye of claim 1-3 any one of them, which is characterized in that the nearly eye shows optics
Module further includes the absorption-type being arranged in the reflection convergence direction of the first reflection amplifier element and the second reflection amplifier element
Polarizer.
8. showing optics module according to the nearly eye of claim 1-3 any one of them, which is characterized in that the nearly eye shows optics
Module further includes beam expander system.
9. showing optics module according to the nearly eye of claim 1-3 any one of them, which is characterized in that the nearly eye shows optics
Module further includes light beam shrink beam system.
10. a kind of near-eye display system, which is characterized in that including image display device and claim 1-9 any one of them
Nearly eye shows optics module.
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| CN201810357204.9A CN108333777B (en) | 2018-04-20 | 2018-04-20 | Near-eye display optical module and near-eye display system |
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| CN201810357204.9A CN108333777B (en) | 2018-04-20 | 2018-04-20 | Near-eye display optical module and near-eye display system |
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Cited By (1)
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| 周雅;马晋涛;刘宪鹏;王红;常军;: "可寻址光线屏蔽机制光学透视式增强现实显示系统研究", 仪器仪表学报, no. 06, pages 176 - 180 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024159604A1 (en) * | 2023-01-31 | 2024-08-08 | 上海理湃光晶技术有限公司 | Geometric optical waveguide coupling apparatus and near-to-eye display device |
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| Publication number | Publication date |
|---|---|
| CN108333777B (en) | 2023-10-03 |
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