CN108490756A - A kind of holographic display device based on waveguide transmission - Google Patents
A kind of holographic display device based on waveguide transmission Download PDFInfo
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- CN108490756A CN108490756A CN201810170156.2A CN201810170156A CN108490756A CN 108490756 A CN108490756 A CN 108490756A CN 201810170156 A CN201810170156 A CN 201810170156A CN 108490756 A CN108490756 A CN 108490756A
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- Prior art keywords
- light
- optical waveguide
- display device
- holographic display
- modulation element
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 23
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims description 3
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims description 3
- 239000005304 optical glass Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 230000000644 propagated effect Effects 0.000 abstract description 9
- 230000001902 propagating effect Effects 0.000 abstract 1
- 230000001427 coherent effect Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/22—Processes or apparatus for obtaining an optical image from holograms
- G03H1/2202—Reconstruction geometries or arrangements
- G03H1/2205—Reconstruction geometries or arrangements using downstream optical component
- G03H2001/2207—Spatial filter, e.g. for suppressing higher diffraction orders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Abstract
This application involves a kind of holographic display devices based on waveguide transmission, which is characterized in that including optical waveguide, the optical waveguide includes light incident surface and light exit surface；Modulation element, the modulation element is located at the optical waveguide optical exit surface, for being modulated to emergent light；Spatial light modulator, the spatial light modulator are located at the modulation element along the top of the outgoing light direction, for carrying out image reproducing to the hologram of preloading by modulated emergent light.By using optical waveguide material, so that incident light is propagated in optical waveguide material instead of propagating in free space, while realizing large scale Three-dimensional Display, reduce the volume of whole display, greatly improve its portability.
Description
Technical field
This application involves display technology field, more particularly to a kind of holographic display device based on waveguide transmission.
Background technology
Three-dimensional holographic real-time, which is shown, can realize that meeting human eye viewing practises with the light wave complex amplitude of true reappearance original scene
Used, realistic Three-dimensional Display is referred to as ultimate display technology, i.e. three-dimensional television.
For the high three-dimensional holographic real-time display system of large scale, portability, when display device is sufficiently large, such as TV
Panel, during three-dimensional holographic real-time is shown, illumination light is collimation laser on television panels, accurate this requires obtaining large area
The systems attempt of straight laser light source is compact, i.e., the light collimating part in system needs to realize light and small, and accomplishes that large area collimates
Coherent laser light source output.
However, the existing collimator apparatus for obtaining collimated laser beam output uses pinhole filter, lens due to needing
And a variety of optical components such as speculum, bulk is bigger, and it is aobvious largely to limit entire three-dimensional holographic real-time
Show the portability of system.And since the size of optical component limits, it is difficult to accomplish that the display of large scale three-dimensional holographic real-time needs
The large area collimation coherent laser light source output wanted.
Invention content
The application provides a kind of holographic display device based on waveguide transmission, at least solves existing in the prior art at least one
A problem.
To solve the above problems, the embodiment of the present application provides the holographic display device based on waveguide transmission, including：
Optical waveguide, the optical waveguide include light incident surface and light exit surface；
Modulation element, the modulation element is located at the optical waveguide optical exit surface, for being modulated to emergent light；
Spatial light modulator, the spatial light modulator are located at the modulation element along the upper of the outgoing light direction
Side, for carrying out image reproducing to the hologram of preloading by modulated emergent light.
Further, further include dissipating device, the dissipating device is located at the light incident surface of the optical waveguide, is used for
Incident light is dissipated.
Further, the dissipating device includes concavees lens.
Further, the dissipating device and the optical waveguide are integrally formed.
Further, the dissipating device surface includes one layer of plated film.
Further, further include laser light source, the laser light source is for generating the spherical surface being incident in the optical waveguide
Wave；The modulation element is used to the emergent light being modulated to plane wave from spherical wave.
Further, the material of the optical waveguide includes optical glass K9, polymethyl methacrylate, polycarbonate plastic
In any one.
Further, the material of the plated film includes any one in magnesium fluoride, titanium oxide, vulcanized lead.
Further, the modulation element includes in micro-nano lens optics thereto, holographic lens element, Fresnel Lenses
Any one.
Holographic display device based on waveguide transmission disclosed in the embodiment of the present application, using optical waveguide material in the prior art
Collimation coherent laser output par, c be improved, so that light is propagated inside waveguide material using the full transmitting principle of light,
To replace the process propagated in free space, coherent laser beam is modulated at waveguide material incidence with outgoing, it can
While realizing large scale three-dimensional real-time display, reduces the volume of whole display, greatly improve its portability.
Description of the drawings
The feature and advantage of the application can be more clearly understood by reference to attached drawing, attached drawing is schematically without that should manage
Solution is carries out any restrictions to the application, in the accompanying drawings：
Fig. 1 is the side perspective structural schematic diagram of the holographic display device of the embodiment of the present application one；
Fig. 2 is the dimensional structure diagram of the holographic display device of the embodiment of the present application one；
Fig. 3 is the side perspective structural schematic diagram of the holographic display device of the embodiment of the present application two；
Fig. 4 is the side perspective structural schematic diagram of the holographic display device of the embodiment of the present application three；
Fig. 5 is the side perspective structural schematic diagram of the holographic display device of the embodiment of the present application four.
Specific implementation mode
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features, and advantages of the application
Mode is applied the application is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description in order to fully understand the application, and still, the application may be used also
To be implemented different from other modes described here using other, therefore, the protection domain of the application is not by described below
Specific embodiment limitation.
Embodiment one
The embodiment of the present application one discloses a kind of holographic display device based on waveguide transmission, as depicted in figs. 1 and 2, wherein
Side perspective structural schematic diagram shown in FIG. 1 for holographic display device, the stereochemical structure signal of micro- holographic display device shown in Fig. 2
Figure.Optical waveguide 1 is specifically included, the optical waveguide 1 includes light incident surface 1-1 and light exit surface 1-2, and modulation element 2 is described
Modulation element 2 is located at the optical waveguide optical exit surface 1-2, for being modulated to emergent light；Spatial light modulator 3, institute
State spatial light modulator 3 be located at the modulation element 2 along it is described outgoing light direction top, for pass through it is modulated go out
It penetrates light and image reproducing is carried out to the hologram of preloading.
Spherical surface incident light enters optical waveguide 1 after the light incident surface 1-1 couplings of optical waveguide, by the optical waveguide
Full transmitting, light exit surface 1-2 be emitted, enter modulation element 2, the modulation element adjusts the spherical wave
System, is modulated to plane wave, and then the plane wave enters spatial light modulator 3, and the spatial light modulator utilizes the plane
Wave carries out image reproducing to the hologram being preloaded in spatial light modulator, generates hologram three-dimensional image.
Wherein, it needs that the hologram of target image is loaded into spatial light modulator 3 in advance, and refreshes in real time, in sky
Between light modulation output end carry out 3-D view show because implement refresh, may finally realize real-time 3D hologram
Display.
It should be understood that need not be fitted closely between the modulation element and the spatial light modulator, keep certain
Distance can prevent from rubbing, and damage element.
It should be noted that the incident light needs to be laser, the incident light is generated by laser light source 4.The light wave
The material led includes any one in optical glass K9, polymethyl methacrylate, polycarbonate plastic.The modulation element
Including any one in micro-nano lens optics thereto, holographic lens element, Fresnel Lenses.Certainly, meet the present embodiment to want
Other optical waveguide materials and modulation element asked, are not further qualified herein.
Holographic display device based on waveguide transmission disclosed in the present embodiment, using optical waveguide material to standard in the prior art
Straight coherent laser output par, c is improved, and so that light is propagated inside waveguide material using the full transmitting principle of light, with generation
For the process propagated in free space, coherent laser beam is modulated at waveguide material incidence with outgoing, it can be in reality
While existing large scale three-dimensional real-time display, reduces the volume of whole display, greatly improve its portability.
Embodiment two
Present embodiment discloses a kind of holographic display devices based on waveguide transmission, as shown in figure 3, include optical waveguide 1, it is described
Optical waveguide 1 includes light incident surface 1-1 and light exit surface 1-2, modulation element 2, and the modulation element 2 is located at the optical waveguide
At light exit surface 1-2, for being modulated to emergent light；Spatial light modulator 3, the spatial light modulator 3 are located at described
The modulation element 2 along the top of the outgoing light direction, for by modulated emergent light to the hologram of preloading into
Row image reproducing.
Further, the present embodiment further includes dissipating device 5, and the light that the dissipating device is located at the optical waveguide 1 is incident
At the 1-1 of surface, the incident light that light source 4 generates can further be dissipated, to improve display effect.
Optionally, the emitting element includes concavees lens, and certainly, other disclosure satisfy that the emitting element of the present embodiment also may be used
Not limit herein.
Holographic display device based on waveguide transmission disclosed in the present embodiment, using optical waveguide material to standard in the prior art
Straight coherent laser output par, c is improved, and so that light is propagated inside waveguide material using the full transmitting principle of light, with generation
For the process propagated in free space, coherent laser beam is modulated at waveguide material incidence with outgoing, it can be in reality
While existing large scale three-dimensional real-time display, reduces the volume of whole display, greatly improve its portability.
By the way that emitting element is arranged at the light incident surface of optical waveguide so that incident light further dissipates, and improves display
Effect.
Embodiment three
Present embodiment discloses a kind of holographic display devices based on waveguide transmission, as shown in figure 4, include optical waveguide 1, it is described
Optical waveguide 1 includes light incident surface 1-1 and light exit surface 1-2, modulation element 2, and the modulation element 2 is located at the optical waveguide
At light exit surface 1-2, for being modulated to emergent light；Spatial light modulator 3, the spatial light modulator 3 are located at described
The modulation element 2 along the top of the outgoing light direction, for by modulated emergent light to the hologram of preloading into
Row image reproducing.
Further, the present embodiment further includes dissipating device 5, and the light that the dissipating device is located at the optical waveguide 1 is incident
At the 1-1 of surface, the incident light that light source 4 generates can further be dissipated, to improve display effect.
Compared with embodiment three, in the present embodiment, the emitting element 5 is fitted closely with the optical waveguide 1, and preferred two
Person is integrally formed, i.e., the light incident surface of the optical waveguide is polished into concave surface, as emitting element, not only realizing will be incident
The purpose that light further dissipates, but also the additional trouble for increasing element is saved, it is that holographic display device structure is simpler.
Holographic display device based on waveguide transmission disclosed in the present embodiment, using optical waveguide material to standard in the prior art
Straight coherent laser output par, c is improved, and so that light is propagated inside waveguide material using the full transmitting principle of light, with generation
For the process propagated in free space, coherent laser beam is modulated at waveguide material incidence with outgoing, it can be in reality
While existing large scale three-dimensional real-time display, reduces the volume of whole display, greatly improve its portability.
By the way that the light incident surface of the optical waveguide is polished into concave surface, as emitting element, not only realizing will be incident
The purpose that light further dissipates, but also the additional trouble for increasing element is saved, it is that holographic display device structure is simpler.
Example IV
As shown in figure 5, disclosed in embodiment three on the basis of holographic display device, the holographic display disclosed in the present embodiment
Device increases one layer of plated film on the surface of emitting element 5, can reduce reflection in this way, increases projection, improves the utilization rate of light, carry
High display effect.
Optionally, the material of the plated film includes any one in magnesium fluoride, titanium oxide, vulcanized lead.Other can be realized
The other materials of the present embodiment function can also, be not limited thereto.
Holographic display device disclosed in the present embodiment is not only with optical waveguide material to collimation coherent laser in the prior art
Output par, c is improved, and reduces the volume of whole display, improves convenience, but also enter firing table by the light in optical waveguide
Face increases by one layer of plated film, improves the utilization rate of light, improves display effect.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (9)
1. a kind of holographic display device based on waveguide transmission, which is characterized in that including：
Optical waveguide, the optical waveguide include light incident surface and light exit surface；
Modulation element, the modulation element is located at the optical waveguide optical exit surface, for being modulated to emergent light；
Spatial light modulator, the spatial light modulator be located at the modulation element along it is described outgoing light direction top,
For carrying out image reproducing to the hologram of preloading by modulated emergent light.
2. holographic display device according to claim 1, which is characterized in that further include dissipating device, the dissipating device position
At the light incident surface of the optical waveguide, for dissipating incident light.
3. holographic display device according to claim 2, which is characterized in that the dissipating device includes concavees lens.
4. holographic display device according to claim 2, which is characterized in that the dissipating device and one bodily form of the optical waveguide
At.
5. holographic display device according to claim 4, which is characterized in that the dissipating device surface includes one layer of plated film.
6. holographic display device according to claim 1, which is characterized in that further include laser light source, the laser light source is used
It is incident on the spherical wave in the optical waveguide in generation；
The modulation element is used to the emergent light being modulated to plane wave from spherical wave.
7. holographic display device according to claim 1, which is characterized in that the material of the optical waveguide includes optical glass
Any one in K9, polymethyl methacrylate, polycarbonate plastic.
8. holographic display device according to claim 5, which is characterized in that the material of the plated film includes magnesium fluoride, oxidation
Any one in titanium, vulcanized lead.
9. holographic display device according to claim 1, which is characterized in that the modulation element includes micro-nano optics of lens member
Any one in part, holographic lens element, Fresnel Lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170156.2A CN108490756B (en) | 2018-03-01 | 2018-03-01 | Holographic display based on waveguide transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810170156.2A CN108490756B (en) | 2018-03-01 | 2018-03-01 | Holographic display based on waveguide transmission |
Publications (2)
| Publication Number | Publication Date |
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| CN108490756A true CN108490756A (en) | 2018-09-04 |
| CN108490756B CN108490756B (en) | 2022-03-25 |
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| CN201810170156.2A Active CN108490756B (en) | 2018-03-01 | 2018-03-01 | Holographic display based on waveguide transmission |
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Cited By (3)
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| CN109656118A (en) * | 2019-02-26 | 2019-04-19 | 京东方科技集团股份有限公司 | Holographic display and electronic equipment |
| GB2594356A (en) * | 2020-03-24 | 2021-10-27 | Bae Systems Plc | Optical system |
| CN115210634A (en) * | 2020-03-02 | 2022-10-18 | 镭亚股份有限公司 | Static image enhanced privacy display, privacy display system with switchable modes and method |
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|---|---|
| CN108490756B (en) | 2022-03-25 |
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