CN208384232U - 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
CN208384232U
CN208384232U CN201820567595.2U CN201820567595U CN208384232U CN 208384232 U CN208384232 U CN 208384232U CN 201820567595 U CN201820567595 U CN 201820567595U CN 208384232 U CN208384232 U CN 208384232U
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China
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subgraph
light
reflection
polarization direction
amplifier element
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CN201820567595.2U
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Chinese (zh)
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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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Abstract

The utility model provides a kind of nearly eye and 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 with tradition display optics module.

Description

Nearly eye shows optics module and near-eye display system
Technical field
The utility model relates to augmented reality fields, in particular to a kind of nearly eye display optics module and closely Eye display system.
Background technique
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, generallys use miniature image display as image source, and cooperates tradition display 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, the display visual field of tradition display optics module and display optics module Volume is closely related.Increase display visual field, the volume of tradition display 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.
Utility model content
In view of this, the nearly eye the purpose of this utility model is to provide a kind of compact of large visual field high resolution is shown Optics module and near-eye display system, to solve the above problems.
To achieve the above object, the utility model provides the following technical solutions:
The utility model preferred embodiment provides a kind of nearly eye and shows optics module, including electrically-controlled liquid crystal polarizer, the One 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 is corresponding, 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 optical 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 vibration direction or circular polarization is converted to non-first linear polarization direction or non-the 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, institute can be visually spliced into user in the described first subgraph to be shown of human eye formation and the second subgraph to be shown State image to be displayed；
Real world light passes through the nearly eye and shows 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 The refractive transmission focal plane of first optical device, first optical device is coplanar with the plane of reflection of the reflecting element.
Optionally, the nearly eye shows that optics module further includes setting in electrically-controlled liquid crystal polarizer and the first reflection amplification The automatically controlled optical device that collimated light beam is assembled when applying and controlling voltage between element, and the reflector is set The reflective operation face of part has the function of assembling to collimated light beam.
Optionally, the nearly eye shows that optics module further includes setting in electrically-controlled liquid crystal polarizer and the first reflection amplification 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 assembling to collimated light beam.
Optionally, the reflective operation face of reflecting element is with the function of assembling 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 setting in the first reflection amplifier element and the second reflection amplification 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 setting in the first reflection amplifier element and the second reflection amplification member The absorption-type polarizer of the reflection convergence direction 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.
The utility model another preferred embodiment also provides a kind of near-eye display system, including image display device and above-mentioned Nearly eye show optics module.
It is inclined to electrically-controlled liquid crystal that nearly eye provided by the embodiment of the utility model shows that optics module and near-eye display system pass through Vibration element, the first reflection amplifier element, the second reflection amplifier element, phase delay chip and the ingenious of reflecting element integrate and set Meter passes sequentially through the first reflection amplifier element in human eye and forms the first subgraph to be shown and the second reflection amplifier element in human eye Form the second subgraph to be shown, using persistence of vision effect, make human eye formed the first subgraph to be shown and second to Show that subgraph is visually spliced into the image to be displayed in user.Therefore, which shows that optics module and nearly eye are aobvious Show that 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 to Show that the resolution ratio of subgraph and the second subgraph to be shown can resolution ratio that is identical and being equal to image to be displayed.Therefore this is close Eye display optics module and near-eye display system while shown with big view field image with high-resolution, and relative to having The nearly eye applied to augmented reality of tradition display optics module shows optics module small volume.Meanwhile the nearly eye shows light Learn the image no color differnece after mould group and near-eye display system assemble reflection based on the imaging method of catoptric imaging principle, and base It is imaged in the amplification of light pencil so that the center and peripheral of amplified image has consistent clarity.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described.It should be appreciated that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of near-eye display system provided by the embodiment of the utility model.
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 eye of 10- shows optics module；1- near-eye display system；50- image display device；11- electrically-controlled liquid crystal is inclined Shake element；12- first reflects amplifier element；13- second reflects amplifier element；14- phase delay chip；15- reflecting element；V1- First instance；V2- second instance；V3- third entity；The 4th entity of V4-；The first optical device of 16-；The automatically controlled optical device of 17-； The 5th entity of V5-；The 6th entity of V6-；The 7th entity of V7-；The 8th entity of V8-；The second optical device of 18-；19- polarization conversion member Part；21- absorption-type polarizer；22- beam expander system；23- light beam shrink beam system.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.Obviously, described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be matched with a variety of different It sets to arrange and design.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to The range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In the utility model In description, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as only or imply Relative importance.
Referring to FIG. 1, Fig. 1 is a kind of structural schematic diagram of near-eye display system 1 provided by the embodiment of the utility model.It should Near-eye display system 1 can be applied to the enhancing such as HMD (Head Mount Display, wear-type visual device), intelligent glasses Real world devices, herein with no restrictions.The near-eye display system 1 includes that nearly eye shows optics module 10 and image display device 50. The nearly eye shows that optics module 10 includes that electrically-controlled liquid crystal polarizer 11, first reflects the reflection amplification member of amplifier element 12, second Part 13, phase delay chip 14 and reflecting element 15.
When carrying out enhancing display, nearly eye shows that optics module 10 needs to cooperate 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 is corresponding, 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 phase 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 the second reflection amplifier element 13 are set in turn in electrically-controlled liquid crystal polarizer 11 On emitting light path.First reflection amplifier element 12 and the second reflection amplifier element 13 are that polarization sensitive reflects convergent component.The One reflection amplifier element 12 and the second reflection amplifier element 13 are 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 the second reflection amplifier element 13 are arranged to linear inclined to first The subgraph light in vibration direction carries out reflection convergence and transmits to the subgraph light of the second linear polarization direction.Or, the One reflection amplifier element 12 and the second reflection 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 the reflected elliptical polarization direction of reflecting element 15 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 convert completely from the subgraph light of the reflected circular polarization of reflecting element 15 For the second linear polarization direction (or first linear polarization direction).
Reflecting element 15 is used for the son with elliptical polarization direction or circular polarization that will be transmitted 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- Penetrating working face is fully-reflected plane.The reflective operation face of reflecting element 15 can be metal-plated membrane or the total reflection of deielectric-coating is flat Face only has the function of that optical path is transferred, to the size of the subgraph light transmitted from phase delay chip 14 without zooming in or out Backtracking transmission.
When the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to the first linear polarization direction When subgraph light carries out reflection convergence and transmits to the subgraph light of the second linear polarization direction, present embodiment is mentioned It is as follows that the near-eye display system 1 of confession carries out the process that a virtual image is shown: a 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 vibration direction 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 amplifier element 12 and the second reflection amplification Element 13 is arranged to carry out the subgraph light of the first linear polarization direction reflection convergence 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 amplification Element 12 and the second reflection amplifier element 13 are transmitted to phase delay chip 14.Reach the linear inclined with second of phase delay chip 14 The polarization direction of the second beam subgraph light in vibration 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 by second reflection amplifier element 13 reflection assemble, human eye formed second to Show subgraph.
When the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to the second linear polarization direction When subgraph light carries out reflection convergence and transmits to the subgraph light of the first linear polarization direction, present embodiment is mentioned It is as follows that the near-eye display system 1 of confession carries out the process that a virtual image is shown: a 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, there is the first beam subgraph light of the second linear polarization direction to reflect meeting by the first reflection amplifier element 12 for this It is poly-, the first subgraph to be shown is formed 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 the second reflection amplifier element 13 are 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, forms second to aobvious in human eye Show subgraph.
In above process, forming the process of the first subgraph to be shown and the second subgraph to be shown in human eye is view Film imaging, therefore can be with blur-free imaging in entirely display field range.It can be exported by adjusting described image display device 50 The frequency of every beam subgraph light and the time interval of the every width image to be displayed of output, and cooperate 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 and shows that optics module 10 enters human eye and forms ambient image.
Nearly eye provided by the embodiment of the utility model shows that optics module 10 passes through to electrically-controlled liquid crystal polarizer 11, first The ingenious integrated and design that amplifier element 12, second reflects amplifier element 13, phase delay chip 14 and reflecting element 15 is reflected, according to It is secondary to pass through the first reflection amplifier element 12 in human eye the first subgraph to be shown of formation and the second reflection amplifier element 13 in human eye Form the second subgraph to be shown, using persistence of vision effect, make human eye formed the first subgraph to be shown and second to Show that subgraph is visually spliced into the image to be displayed in user.Therefore, which shows the visual field of optics module 10 Angle is equal to the sum of the field angle of the first reflection amplifier element 12 and the second reflection amplifier element 13.Also, the first subgraph to be shown The resolution ratio of picture and the second subgraph to be shown can resolution ratio that is identical and being equal to image to be displayed.Therefore the nearly eye shows light Learning has high-resolution while mould group 10 is shown with big view field image, and relative to answering with tradition display optics module Nearly eye for augmented reality shows 10 small volume of optics module.Meanwhile the nearly eye shows that optics module 10 is based on being reflected into Image no color differnece after as the imaging method of principle reflection being assembled, and the amplification based on light pencil is imaged so that amplified The center and peripheral of image has consistent clarity.
Conceived based on above-mentioned utility model, the specific structure of near-eye display system 1 is also possible that but is not limited to such as Fig. 4 extremely Shown in Figure 13, Figure 15.Since nearly eye shown in FIG. 1 shows that optics module 10 includes Fig. 2 and two kinds of working principles shown in Fig. 3, And Fig. 2 is similar with working 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 Fig. 2 Shown in be illustrated for working principle.That is, the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to To the subgraph light of the first linear polarization direction carry out reflection convergence and to the subgraph light of the second linear polarization direction into Row transmission, the first beam subgraph light and the second beam subgraph light are the collimation directional light with the first linear polarization direction Beam, electrically-controlled liquid crystal polarizer 11 are changed the phase of the second beam subgraph light.It should be understood that for ease of description, Fig. 1 Show that optics module 10 is presented in the form of monocular to nearly eye shown in figure 15.Those skilled in the art can be according to Fig. 1 extremely Structure shown in figure 15 releases structure when nearly eye display 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 Be: 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 electrically-controlled liquid crystal polarizer 11 and the first reflection amplification member Space between part 12 constitutes first instance V1, so that between the first reflection amplifier element 12 and the second reflection 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 and first instance V1 and/or second are real 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 Body V2 is close to the face of first instance V1, and 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, which can be, is etched with reflection 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 second instance V2 close to the face of third entity V3 or third entity V3.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 It can be the 4th face of the entity V4 far from phase delay chip 14, the 4th entity V4 is coated with metal far from the face of phase delay chip 14 Film or deielectric-coating.
It is leaned on when the first reflection amplifier element 12 can be first instance V1 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 is face or third entity V3 of the second instance V2 close to third entity V3 Close to the face of second instance V2, when reflecting element 15 is face 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, so that the nearly eye for constituting 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 be identical or different.It is clear that the first reflection amplifier element 12 and the second reflection amplifier element 13 When the medium in reflection diffraction outgoing 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 beneficial 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 Be: 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 of first optical device 16 is coplanar with the plane of reflection of reflecting element 15.First optical device 16 It 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 the second beam subgraph light of parallel fashion, the second beam of the collimation by the first optical device 16 collimation again 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 lower.
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 Be: the nearly eye shows that optics module 10 further includes setting between electrically-controlled liquid crystal polarizer 11 and the first reflection 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 reflection focal plane in the reflective operation face of the refractive transmission focal plane and reflecting element 15 of optical device 17 is substantially overlapped, 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 well-known technique can be selected, herein with no restrictions.Specifically, what present embodiment provided is close It is as follows that eye display 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, this has second linear Second beam subgraph light of polarization direction is assembled by automatically controlled optical device 17, and the second beam subgraph light after convergence is successively saturating The first reflection amplifier element 12 and the second reflection amplifier element 13 are crossed, its polarization direction is converted to ellipse after phase delay chip 14 Polarization direction or circular polarization, this has the second beam subgraph light after the convergence of elliptical polarization direction or circular polarization The second beam subgraph light to export from image display device 50 is reflected and collimated by reflecting element 15 in the consistent son of 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 It is located at the reflection focal plane of reflecting element 15 by the face that automatically controlled optical device 17 assembles imaging.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, after the reflection conversion of reflecting element 15 The second beam subgraph light that second beam subgraph light and image display device 50 export has same image resolution ratio.? In actual implementation, the reflection focal length F5 in the reflective operation face of reflecting element 15 and the refraction of automatically controlled optical device 17 can also be set Transmission focal length F7 is inconsistent, in such cases the resolution ratio phase of the second beam subgraph light after the reflection conversion of reflecting element 15 The resolution ratio of the second beam subgraph light than exporting 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 electric The space controlled between optical device 17 and the first reflection amplifier element 12 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 close to the face of the 5th entity V5 be etched with reflection diffraction pattern.Similarly, the second reflection amplifier element 13 It 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 face or seventh entity V7 of the 6th entity V6 close to the 7th entity V7 Close to the face of the 6th entity V6, wherein the 6th entity V6 is 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 face 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 face 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 be identical or different.It is clear that the first reflection amplifier element 12 and the second reflection amplifier element 13 When the medium in reflection diffraction outgoing 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 beneficial 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: replaces automatically controlled optical device 17, and the first reflection amplifier element with having the second optical device 18 of 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 parameter, 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 being shown to, each interelement of optics module 10 fills tool There is the medium of refractive index, so that the nearly eye for forming integral type shows 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 Be: the reflective operation face of reflecting element 15 is that have the function of assembling 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 set with ellipse The imaging property of ball curved surface, Ellipsoidal Surface tool is there are two focus, and any light issued from one of focus is by ellipse Another focus can be passed through after the reflection of ball curved surface.Therefore any light beam issued from focus F1 is by the second reflection amplification 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 through after electrically-controlled liquid crystal polarizer 11 by the first reflection reflection of amplifier element 12, forms the first subgraph to be shown 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 successively transmits the first reflection and puts 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, there is the second beam subgraph light of elliptical polarization direction or circular polarization to be reflected again by reflecting element 15 for this 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, so that the nearly eye for forming integral type shows optics module 10, assembly difficulty, letter are installed to reduce 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 Be: the nearly eye shows that optics module 10 further includes setting between the first reflection amplifier element 12 and the second reflection 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 the subgraph light of the first linear polarization direction reflection convergence 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 carry out the subgraph light of the second linear polarization direction reflection convergence and to first it is linear partially The subgraph light in vibration direction 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 transmits to the subgraph light of the second linear polarization direction.With linear polarization direction Subgraph light it is every can increase π phase delay by polarization conversion device 19 so that subgraph light is inclined Vibration direction is converted to orthogonal polarization direction.
When the first reflection amplifier element 12 is arranged to carry out the subgraph light of the first linear polarization direction reflection meeting 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 transmits 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 after part 11 by the first reflection reflection of amplifier element 12, forms the first subgraph to be shown 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, second with 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 through the second reflection amplifier element 13 to phase delay chip 14 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 the reflected elliptical polarization direction of reflecting element 15 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 in the second beam subgraph light in vibration direction is amplified by the second reflection The reflection of element 13 is assembled, and forms the second subgraph to be shown in human eye.
When the first reflection amplifier element 12 is arranged to carry out the subgraph light of the second linear polarization direction reflection meeting 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 transmits 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, this has the first beam of the second linear polarization direction Image light is assembled by the first reflection reflection of amplifier element 12, forms the first subgraph to be shown 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 the reflected elliptical polarization direction of reflecting element 15 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 Be: the nearly eye shows that optics module 10 further includes absorption-type polarizer 21, and the first reflection amplifier element 12 and the second reflection are 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 The reflection convergence direction of element 12 and the second reflection amplifier element 13, for the second linear polarization direction (or first it is linear partially Vibration direction) subgraph light absorbed, to the subgraph light of the first linear polarization direction (or second linear polarization direction) Line is penetrated, 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 the second reflection amplifier element 13 are arranged to the subgraph light to the first linear polarization direction Carry out reflection convergence and when transmiting 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. When the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to the subgraph light to the second linear polarization direction When line carries out reflection convergence and transmits 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.
When the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to the first linear polarization direction When subgraph light carries out reflection convergence and transmits 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 For the first beam subgraph light in vibration direction through after electrically-controlled liquid crystal polarizer 11, major part is anti-by the first reflection amplifier element 12 Convergence is penetrated, and penetrates absorption-type polarizer 21, forms the first subgraph to be shown in human eye；Fraction is put through the first reflection Big element 12, second, which 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, this has the second linear polarization direction Fraction in first beam subgraph light be absorbed after being reflected by the second reflection amplifier element 13 type polarizer 21 absorb (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 penetrate the first reflection amplifier element 12, second reflection amplifier element 13 and phase delay chip 14 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, through absorption-type polarizer 21, form the in human eye Two subgraphs to be shown.There is fraction in the second beam subgraph light of the second linear polarization direction to be amplified by the first reflection for this Element 12 is absorbed the absorption of type polarizer 21 after reflecting.
When the first reflection amplifier element 12 and the second reflection amplifier element 13 are arranged to the second linear polarization direction When subgraph light carries out reflection convergence and transmits 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, this has the first beam subgraph light of the second linear polarization direction most of by the first reflection amplifier element 12 Reflection is assembled, and through absorption-type polarizer 21, forms the first subgraph to be shown in human eye；Fraction is put through the first reflection Big element 12, second, which 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, this has the first linear polarization direction Fraction in first beam subgraph light be absorbed after being reflected by the second reflection amplifier element 13 type polarizer 21 absorb (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 largely penetrates the One reflection amplifier element 12 and the second reflection amplifier element 13 are transmitted to phase delay chip 14.This has the first linear polarization direction The second beam subgraph light largely penetrate the first reflection amplifier element 12, second reflection amplifier element 13 and phase delay chip 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.There is fraction in the second beam subgraph light of the first linear polarization direction to be reflected by first for this Amplifier element 12 is absorbed the absorption of type polarizer 21 after reflecting.
Since the reflective operation face of the first reflection amplifier element 12 and the second reflection 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 The reflection convergence direction of amplifier element 13 is penetrated, it can be to the subgraph of the second linear polarization direction (or first linear polarization direction) Light is absorbed, 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 the utility model other embodiment can also be put in the first reflection The reflection convergence direction of big element 12 and the second reflection amplifier element 13 is arranged absorption-type polarizer 21 or a kind of suction is respectively arranged Receipts type polarizer improves the contrast of the first subgraph to be shown and the second subgraph to be shown to eliminate background interference, This is not repeated.
Figure 13 is please referred to, Figure 13 is the structure chart of near-eye display system 1 in another embodiment.It is similar with Fig. 1, it is different Be: 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 Small, the described large scale hot spot of effective optics bore required for first reflection amplifier element 12 or the second reflection amplifier element 13 It is effective needed for amplifier element 13 to refer to that the spot size of light beam and the first reflection amplifier element 12 pre-seted or second reflect 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 or automatically controlled optics device that pre-set 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 pre-seted 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 are overlapped, 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 by object lens as with big ruler 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 less than the image display device 50 with large scale hot spot light beam after beam expander system 22 expands by the first reflection 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 Be: 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 Big, the described small size hot spot of effective optics bore required for first reflection amplifier element 12 or the second reflection amplifier element 13 It is effective needed for amplifier element 13 to refer to that the spot size of light beam and the first reflection amplifier element 12 pre-seted or second reflect Optics bore is consistent.Optics module 10 is shown when light beam shrink beam system 23 is applied to 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 or automatically controlled optics device that pre-set 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 pre-seted 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 being collimated by eyepiece is the light beam with small size hot spot.Pass through in the present embodiment Using light beam shrink beam system 23, the image display device 50 with large scale hot spot light beam is put completely by the first reflection Big element 12 or the second reflection reflection of amplifier element 13 are amplified, and make big ruler by using light beam shrink beam system 23 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 by the embodiment of the utility model shows optics module 10 and near-eye display system 1 by electrically-controlled liquid crystal Polarizer 11, first reflects amplifier element 12, second and reflects the skilful of amplifier element 13, phase delay chip 14 and reflecting element 15 Wonderful integrated and design passes sequentially through the first reflection amplifier element 12 and puts in human eye the first subgraph to be shown of formation and the second reflection Big element 13 forms the second subgraph to be shown in human eye, using persistence of vision effect, makes to be formed in human eye first to be shown Subgraph and the second subgraph to be shown are visually spliced into the image to be displayed in user.Therefore, which shows light The field angle for learning mould group 10 and near-eye display system 1 is equal to the first view for reflecting amplifier element 12 and the second reflection amplifier element 13 The sum of rink corner.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 be shown The resolution ratio of image.Therefore the nearly eye shows that there is big view field image to have while display for optics module 10 and near-eye display system 1 Have a high-resolution, and relative to the nearly eye display optics module 10 for being applied to augmented reality with tradition display optics module and 1 small volume of near-eye display system.Meanwhile the nearly eye shows that optics module 10 and near-eye display system 1 are 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.
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 above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

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 and first is to aobvious Show that subgraph is corresponding, 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, reflect convergent component for polarization sensitive, be respectively used to make the first beam subgraph light human eye formed described first to 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 user visually be spliced into it is described to Show image；
Real world light passes through the nearly eye and shows 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 Focal plane is coplanar with the plane of reflection of the reflecting element.
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 in 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 function 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 assembling 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 assembling to collimated light beam, and the second reflection amplifier element has the imaging property of Ellipsoidal Surface.
6. nearly eye according to claim 1-5 shows optics module, which is characterized in that the nearly eye shows optics Mould group 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. nearly eye according to claim 1-5 shows optics module, which is characterized in that the nearly eye shows optical mode Group further includes the absorption-type polarization member for the reflection convergence direction that the first reflection amplifier element and the second reflection amplifier element is arranged in Part.
8. nearly eye according to claim 1-5 shows optics module, which is characterized in that the nearly eye shows optics Mould group further includes beam expander system or light beam shrink beam system.
9. nearly eye according to claim 1-5 shows optics module, which is characterized in that the nearly eye shows optics The interelement of mould group is filled with the medium with refractive index.
10. a kind of near-eye display system, which is characterized in that described in any item including image display device and claim 1-9 Nearly eye shows optics module.
CN201820567595.2U 2018-04-20 2018-04-20 Nearly eye shows optics module and near-eye display system Withdrawn - After Issue CN208384232U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108333776A (en) * 2018-04-20 2018-07-27 深圳创维新世界科技有限公司 Nearly eye shows optics module and near-eye display system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108333776A (en) * 2018-04-20 2018-07-27 深圳创维新世界科技有限公司 Nearly eye shows optics module and near-eye display system
CN108333776B (en) * 2018-04-20 2023-10-03 深圳创维新世界科技有限公司 Near-eye display optical module and near-eye display system

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