CN108333776A - Nearly eye shows optics module and near-eye display system - Google Patents

Nearly eye shows optics module and near-eye display system Download PDF

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Publication number
CN108333776A
CN108333776A CN201810357124.3A CN201810357124A CN108333776A CN 108333776 A CN108333776 A CN 108333776A CN 201810357124 A CN201810357124 A CN 201810357124A CN 108333776 A CN108333776 A CN 108333776A
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CN
China
Prior art keywords
subgraph
light
reflection
polarization direction
amplifier element
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Granted
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CN201810357124.3A
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Chinese (zh)
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CN108333776B (en
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不公告发明人
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Shenzhen Skyworth New World Technology Co Ltd
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Shenzhen Skyworth New World Technology Co Ltd
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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

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, 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 of an image to be displayed and the second beam subgraph light is assembled the first subgraph to be shown formed and the second subgraph to be shown and can be visually spliced into image to be displayed in user by the first reflection amplifier element and the second reflection amplifier element reflection.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

Nearly eye shows optics module and near-eye display system
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, first are instead Penetrate 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 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 first reflection amplifier element and the second reflection amplifier element are set in turn in going out for electrically-controlled liquid crystal polarizer 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 will be reflected oval inclined from reflecting element The polarization direction of second beam subgraph light of direction or the circular polarization of shaking is converted to non-first linear polarization direction or non- Bilinear polarization direction；
Described image display device has exported the first beam subgraph light and the second beam subgraph light of image to be displayed Afterwards, the described first subgraph to be shown and the second subgraph to be shown formed in human eye can visually be spliced into institute in user State 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 nearly eye shows that optics module further includes being arranged between the phase delay chip and reflecting element First optical device, the refractive transmission focal plane and the plane of reflection of the reflecting element of first optical device are coplanar.
Optionally, the nearly eye shows that optics module further includes that setting is amplified in electrically-controlled liquid crystal polarizer and the first reflection Between element apply control voltage when to collimated light beam into the automatically controlled optical device of line convergence, and the reflector is set The reflective operation face of part has the function of being assembled to collimated light beam.
Optionally, the nearly eye shows that optics module further includes that setting is amplified in electrically-controlled liquid crystal polarizer and the first reflection The second optical device with convergence function between element, and the first reflection amplifier element have to incident convergent beam into The reflective operation face of function and the setting reflecting element that row reflection is assembled has the function of being assembled to collimated light beam.
Optionally, the reflective operation face of reflecting element is with the function of being assembled to collimated light beam, and the second reflection amplification Element has the imaging property of Ellipsoidal Surface.
Optionally, the nearly eye shows that optics module further includes that setting is amplified in the first reflection amplifier element and the second reflection Polarization conversion device between element, and the polarization sensitive of the second reflection amplifier element and the first reflection amplifier element is different.
Optionally, which shows that optics module further includes that setting amplifies member in the first reflection amplifier element and the second reflection The absorption-type polarizer in direction is assembled in the reflection of part.
Optionally, the nearly eye shows that optics module further includes beam expander system or light beam shrink beam system.
Optionally, the nearly eye shows that the interelement of optics module is filled with the medium with refractive index.
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 The ingenious integrated and design of part, the first reflection amplifier element, the second reflection amplifier element, phase delay chip and reflecting element, according to It is secondary to be formed in human eye in human eye the first subgraph to be shown of formation and the second reflection amplifier element by the first reflection amplifier element Second subgraph to be shown keeps the first subgraph to be shown and second that are formed in human eye to be shown using persistence of vision effect Subgraph is visually spliced into the image to be displayed in user.Therefore, which shows optics module and nearly eye display system The field angle of system is equal to the sum of the field angle of the first reflection amplifier element and the second reflection amplifier element.Also, first is to be shown The resolution ratio of subgraph and the second subgraph to be shown can identical and equal to image to be displayed resolution ratio.Therefore the nearly eye is aobvious Show while optics module and near-eye display system are shown with big view field image with high-resolution, and relative to tradition Show that the nearly eye applied to augmented reality of optics module shows optics module small volume.Meanwhile the nearly eye shows optical mode The imaging method of group and near-eye display system based on catoptric imaging principle makes the image no color differnece after reflection convergence, and based on thin The amplification imaging of light beam is so that the center and peripheral of amplified image has consistent 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 structural schematic diagram of near-eye display system in another embodiment.
Fig. 9 is the structural schematic diagram of near-eye display system in another embodiment.
Figure 10 is the structural schematic diagram of near-eye display system in another embodiment.
Figure 11 is the structural schematic diagram of near-eye display system in another embodiment.
Figure 12 is the structural schematic diagram of near-eye display system in another embodiment.
Figure 13 is the structural schematic diagram of near-eye display system in another embodiment.
Figure 14 is the comparison diagram of the field angle of the near-eye display system without beam expander system.
Figure 15 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；12- first reflects amplifier element；13- second reflects amplifier element；14- phase delay chips；15- reflecting elements；V1- First instance；V2- second instances；V3- third entities；The 4th entities of V4-；The first optical devices of 16-；The automatically controlled optical devices of 17-； The 5th entities of V5-；The 6th entities of V6-；The 7th entities of V7-；The 8th entities of V8-；The second optical devices of 18-；19- polarization conversion members Part；21- absorption-type polarizers；22- beam expander systems；23- light beam shrink beam systems.
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 show optics module 10 include electrically-controlled liquid crystal polarizer 11, first reflect amplifier element 12, second reflect amplifier element 13, Phase delay chip 14 and reflecting element 15.
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.
First reflection amplifier element 12 and second reflects amplifier element 13 and is set in turn in electrically-controlled liquid crystal polarizer 11 On emitting light path.It is that polarization sensitive reflects convergent component that first reflection amplifier element 12 and second, which reflects amplifier element 13,.The One reflection amplifier element 12 and second reflects amplifier element 13 and is arranged to the first linear polarization direction (or the second linear polarization Direction) subgraph light carry out reflection convergence, and to the subgraph of the second linear polarization direction (or first linear polarization direction) As light is transmitted.That is, the first reflection amplifier element 12 and second, which reflects amplifier element 13, is arranged to linear to first inclined The subgraph light in direction of shaking carries out reflection and convergence and is transmitted to the subgraph light of the second linear polarization direction.Or, the One reflection amplifier element 12 and second reflect amplifier element 13 be arranged to the subgraph light of the second linear polarization direction into Row reflection is assembled and is transmitted to the subgraph light of the first linear polarization direction.
Phase delay chip 14 is set between the second reflection amplifier element 13 and reflecting element 15.Phase delay chip 14 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 15 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 14 is 1/4 glass When piece, phase delay chip 14 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 15 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 15 is used to transmit from phase delay chip 14 The direction of image light towards the second reflection amplifier element 13 returns to transmission.Optionally, in the present embodiment reflecting element 15 it is anti- It is fully-reflected plane to penetrate working face.The reflective operation face of reflecting element 15 can be that the total reflection of metal-plated membrane or deielectric-coating is flat Face only has the function of that light path is transferred, to the size of the subgraph light transmitted from phase delay chip 14 without zooming in or out Backtracking is transmitted.
It is arranged to the first linear polarization direction when the first reflection amplifier element 12 and second reflects amplifier element 13 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, it is linear inclined with first The first beam subgraph light in direction of shaking is assembled through after electrically-controlled liquid crystal polarizer 11 by the first reflection reflection of amplifier element 12, The first subgraph to be shown is formed in human eye.Image display device 50 exports the second beam subgraph according to the second subgraph to be shown Light, the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction.To electrically-controlled liquid crystal polarizer 11 apply control voltage, and the second beam subgraph light with the first linear polarization direction is converted by electrically-controlled liquid crystal polarizer 11 For the second beam subgraph light with the second linear polarization direction.Due to the first reflection reflection amplification of amplifier element 12 and second Element 13 is arranged to carry out reflection convergence to the subgraph light of the first linear polarization direction and to the second linear polarization direction Subgraph light transmitted, then with the second linear polarization direction the second beam subgraph light through first reflection amplify Element 12 and second reflects amplifier element 13 to be transmitted to phase delay chip 14.Reach the linear inclined with second of phase delay chip 14 The shake polarization direction of the second beam subgraph light in direction is converted to elliptical polarization direction or circular polarization side by phase delay chip 14 Continue to transmit to reflecting element 15 backward, by reflecting element 15 it is reversed after be re-transmitted to phase delay chip 14.From reflecting element Second beam subgraph light of 15 reflected elliptical polarization directions or circular polarization is converted to non-by phase delay chip 14 Second beam subgraph light of the second linear polarization direction.In second beam subgraph light of non-second linear polarization direction Second beam subgraph light of one linear polarization direction is assembled by the second reflection reflection of amplifier element 13, and forming second in human eye waits for Show subgraph.
It is arranged to the second linear polarization direction when the first reflection amplifier element 12 and second reflects amplifier element 13 When subgraph light carries out reflection convergence and transmitted to the subgraph light of the first 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 figure 3, 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 applied to electrically-controlled liquid crystal polarizer 11, there is the first linear polarization The first beam subgraph light in direction is converted to the first beam with the second linear polarization direction by electrically-controlled liquid crystal polarizer 11 Subgraph light should have the first beam subgraph light of the second linear polarization direction to reflect meeting by the first reflection amplifier element 12 It is poly-, form the first subgraph to be shown in human eye.Image display device 50 exports the second beam according to the second subgraph to be shown Image light, the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction.Electrically-controlled liquid crystal is polarized Element 11 does not apply control voltage, and the second beam subgraph light with the first linear polarization direction is through the first reflection amplification member Part 12 and second reflects amplifier element 13 to be transmitted to phase delay chip 14.Reach phase delay chip 14 has the first linear polarization The polarization direction of the second beam subgraph light in direction is converted to elliptical polarization direction or circular polarization by phase delay chip 14 After continue to transmit to reflecting element 15, by reflecting element 15 it is reversed after be re-transmitted to phase delay chip 14.From reflecting element 15 Second beam subgraph light of reflected elliptical polarization direction or circular polarization is converted to non-by phase delay chip 14 Second beam subgraph light of one linear polarization direction.Second in second beam subgraph light of non-first linear polarization direction Second beam subgraph light of linear polarization direction is assembled by the second reflection reflection of amplifier element 13, and forming second in human eye waits showing Show subgraph.
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, utilizes persistence of vision principle, so that it may so that the first subgraph to be shown for being respectively formed in human eye and Second subgraph to be shown is 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 optics module 10 by reflecting electrically-controlled liquid crystal polarizer 11, first Amplifier element 12, second reflects the ingenious integrated and design of amplifier element 13, phase delay chip 14 and reflecting element 15, leads to successively The first reflection amplifier element 12 is crossed to be formed in human eye in human eye the first subgraph to be shown of formation and the second reflection amplifier element 13 Second subgraph to be shown keeps the first subgraph to be shown and second that are formed in human eye to be shown using persistence of vision effect Subgraph is visually spliced into the image to be displayed in user.Therefore, which shows the field angle etc. of optics module 10 The sum of the field angle of amplifier element 13 is reflected in the first reflection amplifier element 12 and second.Also, the first subgraph to be shown and The resolution ratio of second subgraph to be shown can identical and equal to image to be displayed resolution ratio.Therefore the nearly eye shows optical mode With high-resolution while group 10 is shown with big view field image, and being applied to for optics module is shown relative to tradition The nearly eye of augmented reality shows 10 small volume of optics module.Meanwhile the nearly eye shows that optics module 10 is based on catoptric imaging original The imaging method of reason makes the image no color differnece after reflection convergence, and the amplification based on light pencil is imaged so that amplified image Center and peripheral have consistent clarity.
Based on foregoing invention conceive, the concrete structure of near-eye display system 1 be also possible that but be not limited to as Fig. 4 to Figure 13, Shown in Figure 15.Since nearly eye shown in FIG. 1 shows that optics module 10 includes Fig. 2 and two kinds of operation principles shown in Fig. 3, and Fig. 2 It is similar with operation principle shown in Fig. 3, in order to save length, in the description of Fig. 5, Fig. 6, Fig. 8 and Figure 10, only with shown in Fig. 2 Operation principle for illustrate.That is, the first reflection amplifier element 12 and second reflects amplifier element 13 and is arranged to the The subgraph light of one linear polarization direction carries out reflection convergence and is carried out to the subgraph light of the second linear polarization direction saturating It penetrates, the first beam subgraph light and the second beam subgraph light are the collimation collimated light beam with the first linear polarization direction, electricity Draining crystalline substance polarizer 11 is changed the phase of the second beam subgraph light.It should be understood that for ease of description, Fig. 1 to figure Nearly eye shown in 15 shows that optics module 10 is presented in the form of monocular.Those skilled in the art can be according to Fig. 1 to Figure 15 Shown in structure release nearly eye and show structure when optics module 10 is binocular.
As shown in figure 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：Electrically-controlled liquid crystal polarizer 11, first reflects amplifier element 12, second and reflects amplifier element 13, phase delay chip 14 and anti- It penetrates element 15 and is filled with the medium with refractive index between any two so that the reflection amplification member of electrically-controlled liquid crystal polarizer 11 and first Space between part 12 constitutes first instance V1 so that the first reflection amplifier element 12 and second reflects between amplifier element 13 Space constitutes second instance V2 so that the space between the second reflection amplifier element 13 and phase delay chip 14 constitutes third entity V3 so that the space between phase delay chip 14 and reflecting element 15 constitutes the 4th entity V4.At this point, the first reflection amplifier element 12 can be the element that reflection diffraction pattern is etched on transparent substrate, and the transparent substrate is real with first instance V1 and/or second Body V2 is glued.Alternatively, the first reflection amplifier element 12 can also be that first instance V1 is real close to the face of second instance V2 or second For body V2 close to the face of first instance V1, wherein first instance V1 is real close to first close to the face of second instance V2 or second instance V2 The face of body V1 is etched with reflection diffraction pattern.Similarly, the second reflection amplifier element 13 can be that reflection is etched on transparent substrate The element of diffraction pattern, the transparent substrate and second instance V2 and/or third entity V3 are glued.Or second reflection amplifier element 13 can also be second instance V2 close to the face of third entity V3 or third entity V3 close to the face of second instance V2, wherein second Entity V2 is etched with reflection diffraction pattern close to the face of third entity V3 or third entity V3 close to the face of second instance V2.Together Reason, reflecting element 15 can be the fully-reflected plane of reflective operation face metal-plated membrane or deielectric-coating.Or reflecting element 15 is also Can be the 4th faces of the entity V4 far from phase delay chip 14, the 4th faces of the entity V4 far from phase delay chip 14 is coated with metal Film or deielectric-coating.
When the first reflection amplifier element 12 can be that first instance V1 is leaned on close to the face of second instance V2 or second instance V2 The face of nearly first instance V1, the second reflection amplifier element 13 are second instance V2 close to the face of third entity V3 or third entity V3 Close to the face of second instance V2, when reflecting element 15 is faces of the 4th entity V4 far from phase delay chip 14, electrically-controlled liquid crystal polarization Element 11 and first instance V1 are glued together, and second instance V2 is glued at one with first instance V1 and third entity V3 respectively It rises, phase delay chip 14 and third entity V3 and the 4th entity V4 are glued together, and the nearly eye to constitute integral type is shown Optics module 10.
It should be noted that first instance V1, second instance V2, third entity V3 and the 4th entity V4 are respectively possessed Refractive index can it is identical can also be different.It is clear that the first reflection amplifier element 12 and second reflects amplifier element 13 When the medium that reflection diffraction is emitted space is no longer air but has the medium of a refractive index, reflection diffraction pattern should root It is designed accordingly according to set medium refraction index.
The nearly eye of present embodiment offer shows that optics module 10 has reduction installation assembly difficulty, the simplified nearly eye aobvious Show the external support structure of optics module 10, be conducive to the advantageous effects such as batch production.
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 the first optical device being arranged between phase delay chip 14 and reflecting element 15 16.The refractive transmission focal plane and the plane of reflection of reflecting element 15 of first optical device 16 are coplanar.First optical device 16 Can be single optical lens or more optical lens groups.What is transmitted from phase delay chip 14 has oval or circular polarization the Two beam subgraph light reflect after being assembled by the first optical device 16 through reflecting element 15, reflect the second beam of post-concentration form Image light is again by the second beam subgraph light that the first optical device 16 collimation is parallel fashion, the second beam of the collimation Image light is dimensionally consistent with the second beam subgraph light exported from image display device 50.Pass through setting first Optical device 16 can make also reach required convergence ability when the reflection convergence ability of the second reflection amplifier element 13 is relatively low.
Referring to 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 being arranged between electrically-controlled liquid crystal polarizer 11 and first reflects amplifier element 12 Automatically controlled optical device 17, and the reflective operation face that reflecting element 15 is arranged has the function assembled to collimated light beam.Specifically When implementation, the reflective operation face of reflecting element 15 can be concave reflection curved surface or be set as having concave reflection equivalent function Reflection diffraction plane.Optionally, in the present embodiment, the reflective operation face of reflecting element 15 is concave reflection curved surface.When right When automatically controlled optical device 17 applies control voltage, automatically controlled optical device 17 has the convergence function to collimated light beam.It is arranged automatically controlled The refractive transmission focal plane of optical device 17 is substantially overlapped with the reflection focal plane in the reflective operation face of reflecting element 15 so that from electricity The second beam subgraph light with the second linear polarization direction that draining crystalline substance polarizer 11 transmits passes through automatically controlled optical device It can be reflected and collimate as with therewith with the subgraph light of size by reflecting element 15 after 17 convergences.Automatically controlled optical device 17 The liquid crystal lens or liquid lens in known technology can be selected, are not limited herein.Specifically, what present embodiment provided is close It is as follows that eye shows that optics module 10 carries out the process that a virtual image is shown：Image display device 50 is according to the first son to be shown Image exports the first beam subgraph light, and the first beam subgraph light is the collimation directional light with the first linear polarization direction Beam.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11 and automatically controlled optical device 17, with the first linear polarization direction First beam subgraph light is assembled after penetrating electrically-controlled liquid crystal polarizer 11 by the first reflection reflection of amplifier element 12, in human eye shape At the first subgraph to be shown.Image display device 50 exports the second beam subgraph light according to the second subgraph to be shown, the Two beam subgraph light are the collimation collimated light beam with the first linear polarization direction.Electrically-controlled liquid crystal polarizer 11 is applied and is controlled Voltage processed, the second beam subgraph light with the first linear polarization direction are converted to by electrically-controlled liquid crystal polarizer 11 with Second beam subgraph light of bilinear polarization direction.Control voltage is applied to automatically controlled optical device 17, it should be linear with second Second beam subgraph light of polarization direction is assembled by automatically controlled optical device 17, and the second beam subgraph light after convergence is saturating successively It crosses the first reflection amplifier element 12 and second and reflects amplifier element 13, its polarization direction is converted to ellipse after phase delay chip 14 Polarization direction or circular polarization should have the second beam subgraph light after the convergence of elliptical polarization direction or circular polarization Reflected and collimated by reflecting element 15 the second beam subgraph light to be exported from image display device 50 son consistent in size Image light, the second beam subgraph light with elliptical polarization direction or circular polarization after the collimation prolong through phase again Its polarization direction is converted to non-second linear polarization direction, the second beam subgraph light of non-second linear polarization direction after slow piece 14 Second beam subgraph light of the first linear polarization direction in line is assembled by the second reflection reflection of amplifier element 13, in human eye shape At the second subgraph to be shown.
The reflection focal plane that the refractive transmission focal plane of automatically controlled optical device 17 and the reflective operation face of reflecting element 15 is arranged is real It is overlapped in matter so that the second beam subgraph light with the second linear polarization direction transmitted from electrically-controlled liquid crystal polarizer 11 The face that imaging is assembled by automatically controlled optical device 17 is located at the reflection focal plane of reflecting element 15.When the reflective operation of reflecting element 15 When the reflection focal length F5 in face is consistent with the refractive transmission focal length F7 of automatically controlled optical device 17, reflected through reflecting element 15 transformed Second beam subgraph light has same image resolution ratio with the second beam subgraph light that image display device 50 exports. In actual implementation, the refraction of the reflection focal length F5 and automatically controlled optical device 17 in the reflective operation face of reflecting element 15 can also be set It is inconsistent to transmit focal length F7, reflects the resolution ratio phase of transformed second beam subgraph light through reflecting element 15 in such cases The resolution ratio of the second beam subgraph light than being exported in image display device 50 has certain increase or diminution.
Similarly, similar with Fig. 4, the reflection amplification member of amplifier element 12, second can be reflected in automatically controlled optical device 17, first Part 13, phase delay chip 14 and reflecting element 15 are filled with the medium with refractive index between any two, as shown in Figure 7.So that electricity It controls the space that optical device 17 and first reflects between amplifier element 12 and constitutes the 5th entity V5 so that the first reflection amplifier element 12 and second reflection amplifier element 13 between space constitute the 6th entity V6 so that second reflection amplifier element 13 and phase prolong Space between slow piece 14 constitutes the 7th entity V7 so that the space between phase delay chip 14 and reflecting element 15 constitutes the 8th Entity V8.At this point, the first reflection amplifier element 12 can be the element for being etched with reflection diffraction pattern on transparent substrate, this is transparent Substrate and the 5th entity V5 and/or the 6th entity V6 are glued.Alternatively, the first reflection amplifier element 12 can also be the 5th entity V5 Close to the face of the 6th entity V6 or the 6th entity V6 close to the face of the 5th entity V5, wherein the 5th entity V5 is close to the 6th entity V6 Face or the 6th entity V6 be etched with reflection diffraction pattern close to the face of the 5th entity V5.Similarly, the second reflection amplifier element 13 Can be the element that reflection diffraction pattern is etched on transparent substrate, the transparent substrate and the 6th entity V6 and/or the 7th entity V7 is glued.Or second reflection amplifier element 13 can also be the 6th entity V6 close to the face of the 7th entity V7 or the 7th entity V7 Close to the 6th entity V6 face, wherein the 6th entity V6 close to the face of the 7th entity V7 or the 7th entity V7 close to the 6th entity V6 Face be etched with reflection diffraction pattern.Similarly, reflecting element 15 can be the concave surface that reflective operation face is coated with total reflection film.Or Reflecting element 15 can also be the 8th faces of the entity V8 far from phase delay chip 14, and the 8th entity V8 is far from phase delay chip 14 Facing towards 14 side indent of phase delay chip and be coated with total reflection film.
When the first reflection amplifier element 12 is the 5th entity V5 close to the face of the 6th entity V6 or the 6th entity V6 close to the The face of five entity V5, the second reflection amplifier element 13 is that the 6th entity V6 is close close to the face of the 7th entity V7 or the 7th entity V7 The face of 6th entity V6, when reflecting element 15 is faces of the 8th entity V8 far from phase delay chip 14, electrically-controlled liquid crystal polarizer 11, automatically controlled optical device 17 and the 5th entity V5 are glued together, the 6th entity V6 respectively with the 5th entity V5 and the 7th entity V7 is glued together, and phase delay chip 14 and the 7th entity V7 and the 8th entity V8 are glued together, to constitute integral type Nearly eye show optics module 10.
It should be noted that the 5th entity V5, the 6th entity V6, the 7th entity V7 and the 8th entity V8 are respectively possessed Refractive index can it is identical can also be different.It is clear that the first reflection amplifier element 12 and second reflects amplifier element 13 When the medium that reflection diffraction is emitted space is no longer air but has the medium of a refractive index, reflection diffraction pattern should root It is designed accordingly according to set medium refraction index.
The nearly eye of present embodiment offer shows that optics module 10 has reduction installation assembly difficulty, the simplified nearly eye aobvious Show the external support structure of optics module 10, be conducive to the advantageous effects such as batch production.
As shown in figure 8, Fig. 8 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 6, it is different It is：Automatically controlled optical device 17, and the first reflection amplifier element are replaced with the second optical device 18 with fixed convergence ability 12 have the function that reflection convergence is carried out to incident convergent beam.For example, the reflection diffraction figure of the first reflection amplifier element 12 The reflection diffraction characteristic of case is the imaging property of off-axis convex reflecting mirror.In optical design software zemax design parameters, off axis The parameters of convex reflecting mirror can be vertex curvature radius 60mm, aspherical quadratic term constant, fourth order coefficient, 6th level number is respectively -0.0710, -4.2e-6、1.15e-9, the off-axis amount of vertical direction is 24.9.
Similarly, similar with Fig. 4 and Fig. 7, nearly eye shown in Fig. 8 can also be shown that each interelement of optics module 10 fills tool The medium for having refractive index, the nearly eye to form integral type show optics module 10, described in reducing installation assembly difficulty, simplify Nearly eye shows the external support structure of optics module 10, conducive to batch production etc., as shown in Figure 9.In order to save length, herein not It repeats.
As shown in Figure 10, Figure 10 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 reflective operation face of reflecting element 15 is that have the function of being assembled to collimated light beam, and the second reflection amplifier element 13 is set It is set to the function that incident divergent beams are carried out with reflection convergence.For example, the second reflection amplifier element 13 can be arranged with ellipse The imaging property of ball curved surface, Ellipsoidal Surface tool is there are two focus, and any light sent out from one of focus is by ellipse Another focus can be passed through after the reflection of ball curved surface.Therefore any light beam sent out from focus F1 amplifies by the second reflection It will be by reflection diffraction to focus F2 after element 13.In specific implementation process, image display device 50 is according to the first son to be shown Image exports the first beam subgraph light, and the first beam subgraph light is the collimation directional light with the first linear polarization direction Beam.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11, the first beam subgraph light with the first linear polarization direction It is assembled by the first reflection reflection of amplifier element 12 through after electrically-controlled liquid crystal polarizer 11, the first subgraph to be shown is formed in human eye Picture.Image display device 50 exports the second beam subgraph light according to the second subgraph to be shown, and the second beam subgraph light is Collimation collimated light beam with the first linear polarization direction.Control voltage is applied to electrically-controlled liquid crystal polarizer 11, has first Second beam subgraph light of linear polarization direction is converted to by electrically-controlled liquid crystal polarizer 11 with the second linear polarization direction The second beam subgraph light.The second beam subgraph light with the second linear polarization direction transmits the first reflection and puts successively After big element 12, second reflects amplifier element 13 and phase delay chip 14, polarization direction is converted to elliptical polarization direction or circle Polarization direction should have the second beam subgraph light of elliptical polarization direction or circular polarization to be reflected again by reflecting element 15 Through 14 post-concentration of phase delay chip at focus F1, the second beam subgraph light converged at focus F1 is put by the second reflection Big 13 reflection diffraction of element forms the second subgraph to be shown at focus F2.
Similarly, similar with Fig. 4, Fig. 7 and Fig. 9, nearly eye shown in Figure 10 can also be shown to each interelement of optics module 10 The medium with refractive index is filled, the nearly eye to form integral type shows optics module 10, to reduce installation assembly difficulty, letter Change the nearly eye and show the external support structure of optics module 10, conducive to batch production etc., therefore not to repeat here.
As shown in figure 11, Figure 11 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 12 and second reflects amplifier element 13 Polarization conversion device 19, and the polarization sensitive of the second reflection amplifier element 13 and the first reflection amplifier element 12 is different.If First reflection amplifier element 12 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 13 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 12 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 13 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 19 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 12 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 13 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, It is as follows to carry out the process that a virtual image is shown：Image display device 50 exports the first beam according to the first subgraph to be shown Image light, the first beam subgraph light are the collimation collimated light beam with the first linear polarization direction.Electrically-controlled liquid crystal is polarized Element 11 does not apply control voltage, and the first beam subgraph light with the first linear polarization direction is through electrically-controlled liquid crystal polarization member It is assembled by the first reflection reflection of amplifier element 12 after part 11, 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 applied to electrically-controlled liquid crystal polarizer 11, there is the second of the first linear polarization direction Beam subgraph light is converted to the second beam subgraph light with the second linear polarization direction by electrically-controlled liquid crystal polarizer 11. This has the second beam subgraph light of the second linear polarization direction through the first reflection amplifier element 12, through polarization conversion device It is transmitted to phase delay chip 14 through the second reflection amplifier element 13 after being converted to the first linear polarization direction 19 its polarization direction. The polarization direction of the second beam subgraph light with the first linear polarization direction of phase delay chip 14 is reached by phase delay Piece 14, which is converted to, to be continued after elliptical polarization direction or circular polarization to transmit to reflecting element 15, by reflecting element 15 it is reversed after again It is secondary to be transmitted to phase delay chip 14.From 15 reflected elliptical polarization direction of reflecting element or the second beam of circular polarization Image light is converted to the second beam subgraph light of non-first linear polarization direction by phase delay chip 14.Non- first is linear inclined Second beam subgraph light of the second linear polarization direction shaken in the second beam subgraph light in direction is amplified by the second reflection The reflection of element 13 is assembled, and the second subgraph to be shown is formed in human eye.
When the first reflection amplifier element 12 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 13 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, It is as follows to carry out the process that a virtual image is shown：Image display device 50 exports the first beam according to the first subgraph to be shown Image light, the first beam subgraph light are the collimation collimated light beam with the first linear polarization direction.Electrically-controlled liquid crystal is polarized Element 11 applies control voltage, and the first beam subgraph light with the first linear polarization direction is by electrically-controlled liquid crystal polarizer 11 The first beam subgraph light with the second linear polarization direction is converted to, it should be with the first beam of the second linear polarization direction Image light is assembled by the first reflection reflection of amplifier element 12, and the first subgraph to be shown is formed in human eye.Image display device 50 export the second beam subgraph light according to the second subgraph to be shown, and the second beam subgraph light is with the first linear polarization The collimation collimated light beam in direction.Control voltage is not applied to electrically-controlled liquid crystal polarizer 11, with the first linear polarization direction Second beam subgraph light is through the first reflection amplifier element 12, and through polarization conversion device 19, its polarization direction is converted to the second line Property polarization direction after through second reflection amplifier element 13 to phase delay chip 14 transmit.Reach phase delay chip 14 has the The polarization direction of second beam subgraph light of bilinear polarization direction by phase delay chip 14 be converted to elliptical polarization direction or Continue to transmit to reflecting element 15 after circular polarization, by reflecting element 15 it is reversed after be re-transmitted to phase delay chip 14.From Second beam subgraph light of 15 reflected elliptical polarization direction of reflecting element or circular polarization is by phase delay chip 14 Be converted to the second beam subgraph light of non-second linear polarization direction.Second beam subgraph light of non-second linear polarization direction Second beam subgraph light of the first linear polarization direction in line is assembled by the second reflection reflection of amplifier element 13, in human eye shape At the second subgraph to be shown.
As shown in figure 12, Figure 12 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 21, and the first reflection reflection of amplifier element 12 and second is put Big element 13 is the concave reflection convergent component with continuous curve surface.The absorption-type polarizer 21 setting is in the first reflection amplification Direction is assembled in the reflection that element 12 and second reflects amplifier element 13, 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 12 and second reflects amplifier element 13 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 21 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 12 and second reflects amplifier element 13 When line carries out reflection convergence and transmitted to the subgraph light of the first linear polarization direction, absorption-type polarizer 21 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 12 and second reflects amplifier element 13 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 21 is for absorbing the subgraph light of the second linear polarization direction.When carrying out a virtual image display, 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, it is linear inclined with first Shake direction the first beam subgraph light through after electrically-controlled liquid crystal polarizer 11, it is most of anti-by the first reflection amplifier element 12 Convergence is penetrated, and through absorption-type polarizer 21, the first subgraph to be shown is formed in human eye；Fraction is put through the first reflection Big element 12, second reflects after amplifier element 13 and phase delay chip 14 again passes by phase delay chip by the reflection of reflecting element 15 14, 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 21 after being reflected by the second reflection amplifier element 13 (and Major part therein is through the second reflection amplifier element 13).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.This has the of the second linear polarization direction After two beam subgraph light largely reflect amplifier element 13 and phase delay chip 14 through the first reflection amplifier element 12, second Phase delay chip 14 is again passed by by the reflection of reflecting element 15, non-second linear polarization direction is converted to by phase delay chip 14 Second beam subgraph light, of the first linear polarization direction in the second beam subgraph light of non-second linear polarization direction Two beam subgraph light are assembled by the second reflection reflection of amplifier element 13, and through absorption-type polarizer 21, the is formed in human eye Two subgraphs to be shown.Fraction is amplified by the first reflection in the second beam subgraph light with the second linear polarization direction Element 12 is absorbed after reflecting by absorption-type polarizer 21.
It is arranged to the second linear polarization direction when the first reflection amplifier element 12 and second reflects amplifier element 13 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 21 is for absorbing the subgraph light of the first linear polarization direction.When carrying out a virtual image display, 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 applied to electrically-controlled liquid crystal polarizer 11, there is the first linear polarization The first beam subgraph light in direction is converted to the first beam with the second linear polarization direction by electrically-controlled liquid crystal polarizer 11 Subgraph light should reflect amplifier element 12 with the first beam subgraph light major part of the second linear polarization direction by first Reflection is assembled, and through absorption-type polarizer 21, the first subgraph to be shown is formed in human eye；Fraction is put through the first reflection Big element 12, second reflects after amplifier element 13 and phase delay chip 14 again passes by phase delay chip by the reflection of reflecting element 15 14, 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 21 after being reflected by the second reflection amplifier element 13 (and Major part therein is through the second reflection amplifier element 13).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 does not apply control voltage, and the second beam subgraph light with the first linear polarization direction is largely through the One reflection amplifier element 12 and second reflects amplifier element 13 to be transmitted to phase delay chip 14.There should be the first linear polarization direction The second beam subgraph light largely reflect amplifier element 13 and phase delay chip through the first reflection amplifier element 12, second Phase delay chip 14 is again passed by by the reflection of reflecting element 15 after 14, non-first linear polarization side is converted to by phase delay chip 14 To the second beam subgraph light, the second linear polarization direction in the second beam subgraph light of non-first linear polarization direction The second beam subgraph light by second reflection amplifier element 13 reflection assemble, through absorption-type polarizer 21, in human eye shape At the second subgraph to be shown.Fraction is by the first reflection in the second beam subgraph light with the first linear polarization direction Amplifier element 12 is absorbed after reflecting by absorption-type polarizer 21.
Since the reflective operation face that the first reflection amplifier element 12 and second reflects amplifier element 13 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 First linear polarization direction reflection assemble and the second linear polarization direction transmission or the second linear polarization direction reflection assemble and The transmission of first linear polarization direction, therefore the absorption-type polarizer 21 setting is anti-in the first reflection amplifier element 12 and second Direction is assembled in the reflection for penetrating amplifier element 13, 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, the near-eye display system 1 provided for other embodiment of the present invention, can also be in the first reflection amplification member The reflection that part 12 and second reflects amplifier element 13 assembles direction setting absorption-type polarizer 21 or a kind of absorption-type is respectively arranged Polarizer improves the contrast of the first subgraph to be shown and the second subgraph to be shown, herein not to eliminate background interference It repeats.
Please refer to Fig.1 the structure chart that 3, Figure 13 is 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 22, and the beam expander system 22 is set to electrically-controlled liquid crystal Side of the polarizer 11 far from the first reflection amplifier element 12.The beam expander system 22 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 22 can be applied not only to shown in FIG. 1 Nearly eye shows optics module 10 to form structure shown in Figure 13, can also be applied to nearly eye shown in Fig. 2 to Figure 12 and show New structure is formed in optics module 10.When beam expander system 22 is applied to Fig. 1 to Fig. 5, Figure 10, Figure 11, Figure 12 and figure When nearly eye shown in 13 shows optics module 10, small size hot spot described herein refers to the spot size of light beam than pre-seting First reflection amplifier element 12 or second reflects small, the described large scale hot spot of the required effective optics bore of amplifier element 13 Refer to light beam spot size with pre-set first reflection amplifier element 12 or second reflect amplifier element 13 needed for it is effective Optics bore is consistent.When beam expander system 22 is applied to Fig. 6, Fig. 7, Fig. 8 and nearly eye display optics module 10 shown in Fig. 9 When, small size hot spot described herein refers to the spot size of light beam than the second optical device 18 pre-seted or automatically controlled optics device Effective optics bore needed for part 17 is small, and the large scale hot spot refers to the spot size of light beam and the second optics for pre-seting Effective optics bore needed for device 18 or automatically controlled optical device 17 is consistent.
Beam expander system 22 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 22 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 13 and Figure 14, Image display device 50 with small size hot spot light beam reflects amplified field angle afa2 by the first reflection amplifier element 12 It is put by the first reflection less than the image display device 50 with large scale hot spot light beam after beam expander system 22 expands Big element 12 reflects amplified field angle afa1.
As shown in figure 15, Figure 15 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 23, and the light beam shrink beam system 23 is set to electrically-controlled liquid crystal Side of the polarizer 11 far from the first reflection amplifier element 12.The beam expander system 22 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 23 can be applied not only to shown in FIG. 1 Nearly eye shows optics module 10 to form structure shown in Figure 13, can also be applied to nearly eye shown in Fig. 2 to Figure 12 and show New structure is formed in optics module 10.When light beam shrink beam system 23 is applied to Fig. 1 to Fig. 5, Figure 10, Figure 11, Figure 12 and figure When nearly eye shown in 13 shows optics module 10, large scale hot spot described herein refers to the spot size of light beam than pre-seting First reflection amplifier element 12 or second reflects big, the described small size hot spot of the required effective optics bore of amplifier element 13 Refer to light beam spot size with pre-set first reflection amplifier element 12 or second reflect amplifier element 13 needed for it is effective Optics bore is consistent.Optics module 10 is shown when light beam shrink beam system 23 is applied to the nearly eye described in Fig. 6, Fig. 7, Fig. 8 and Fig. 9 When, small size hot spot described herein refers to the spot size of light beam than the second optical device 18 pre-seted or automatically controlled optics device Effective optics bore needed for part 17 is small, and the large scale hot spot refers to the spot size of light beam and the second optics for pre-seting Effective optics bore needed for device 18 or automatically controlled optical device 17 is consistent.
Light beam shrink beam system 23 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 23 so that the image display device 50 with large scale hot spot light beam can be put by the first reflection completely Big element 12 or second reflects the reflection of amplifier element 13 and amplifies, by using light beam shrink beam system 23 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, first reflects the ingenious collection that amplifier element 12, second reflects amplifier element 13, phase delay chip 14 and reflecting element 15 At with design, pass sequentially through the first reflection amplifier element 12 human eye formed the first subgraph to be shown and second reflection amplification member Part 13 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 Group 10 and the field angle of near-eye display system 1 are equal to the field angle that the first reflection amplifier element 12 and second reflects amplifier element 13 The sum of.Also, the resolution ratio of the first subgraph to be shown and the second subgraph to be shown can be identical and be equal to image to be displayed Resolution ratio.Therefore the nearly eye is shown while optics module 10 and near-eye display system 1 are shown with big view field image with height Resolution ratio, and show that the nearly eye applied to augmented reality of optics module shows optics module 10 and nearly eye relative to tradition 1 small volume of display system.Meanwhile the nearly eye shows optics module 10 and near-eye display system 1 based on catoptric imaging principle Imaging method makes the image no color differnece after reflection convergence, and the amplification based on light pencil is imaged so that in amplified image The heart has consistent clarity with edge.
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, the first reflection amplifier element, 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 image display device, is used for after applying control voltage, The polarization direction of incident the first beam subgraph light or the second beam subgraph light is changed to the second linear polarization direction, it is described Second linear polarization direction and the first linear polarization direction are orthogonal；
The first reflection amplifier element and the second reflection amplifier element are set in turn in the emergent light of electrically-controlled liquid crystal polarizer 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 be from the reflected elliptical polarization side of reflecting element To or the polarization direction of the second beam subgraph light of circular polarization be converted to non-first linear polarization direction or non-second line Property polarization direction；
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 that human eye is formed can visually be spliced into described wait in user Show image；
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 nearly eye shows that optics module is also wrapped Include the first optical device being arranged between the phase delay chip and reflecting element, the refractive transmission of first optical device The plane of reflection of focal plane and the reflecting element is coplanar.
3. nearly eye according to claim 1 shows optics module, which is characterized in that the nearly eye shows that optics module is also wrapped Include be arranged electrically-controlled liquid crystal polarizer and first reflection amplifier element between apply control voltage when to collimated light beam into The automatically controlled optical device of line convergence, and the reflective operation face that the reflecting element is arranged has the work(assembled to collimated light beam Energy.
4. nearly eye according to claim 1 shows optics module, which is characterized in that the nearly eye shows that optics module is also wrapped The second optical device with convergence function being arranged between electrically-controlled liquid crystal polarizer and the first reflection amplifier element is included, and First reflection amplifier element, which has, to carry out the function of reflection convergence to incident convergent beam and the anti-of the reflecting element is arranged Penetrating working face has the function of being assembled to collimated light beam.
5. nearly eye according to claim 1 shows optics module, which is characterized in that the reflective operation face of reflecting element is tool There is the function of being assembled to collimated light beam, and the second reflection amplifier element has the imaging property of Ellipsoidal Surface.
6. showing optics module according to the nearly eye of claim 1-5 any one of them, which is characterized in that the nearly eye shows optics Module further includes the polarization conversion device being arranged between the first reflection amplifier element and the second reflection amplifier element, and second is anti- The polarization sensitive for penetrating amplifier element and the first reflection amplifier element is different.
7. showing optics module according to the nearly eye of claim 1-5 any one of them, which is characterized in that the nearly eye shows optical mode Group further includes that the absorption-type being arranged in the reflection convergence direction of the first reflection amplifier element and the second reflection amplifier element polarizes member Part.
8. showing optics module according to the nearly eye of claim 1-5 any one of them, which is characterized in that the nearly eye shows optics Module further includes beam expander system or light beam shrink beam system.
9. showing optics module according to the nearly eye of claim 1-5 any one of them, which is characterized in that the nearly eye shows optics The interelement of module is filled with the medium with refractive index.
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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