WO2020238834A1 - 全息光学装置、全息光学系统以及全息显示系统 - Google Patents
全息光学装置、全息光学系统以及全息显示系统 Download PDFInfo
- Publication number
- WO2020238834A1 WO2020238834A1 PCT/CN2020/092024 CN2020092024W WO2020238834A1 WO 2020238834 A1 WO2020238834 A1 WO 2020238834A1 CN 2020092024 W CN2020092024 W CN 2020092024W WO 2020238834 A1 WO2020238834 A1 WO 2020238834A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- focal length
- length modulation
- signal light
- component
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 87
- 230000001427 coherent effect Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 131
- 239000000758 substrate Substances 0.000 claims description 37
- 229920000642 polymer Polymers 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 208000002173 dizziness Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000003164 Diplopia Diseases 0.000 description 1
- 244000126211 Hericium coralloides Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0402—Recording geometries or arrangements
-
- 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
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
-
- 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
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H1/024—Hologram nature or properties
- G03H1/0248—Volume 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
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
-
- 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
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H1/268—Holographic stereogram
-
- 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
- G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
- G03H1/30—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique discrete holograms only
-
- 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
- G03H1/2294—Addressing the hologram to an active spatial light modulator
-
- 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
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H2001/0208—Individual components other than the hologram
- G03H2001/0216—Optical components
-
- 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
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H2001/0208—Individual components other than the hologram
- G03H2001/0224—Active addressable light modulator, i.e. Spatial Light Modulator [SLM]
-
- 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
- G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
- G03H2001/026—Recording materials or recording processes
- G03H2001/0264—Organic recording material
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/20—2D object
- G03H2210/22—2D SLM object wherein the object beam is formed of the light modulated by the SLM
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/30—3D object
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2210/00—Object characteristics
- G03H2210/40—Synthetic representation, i.e. digital or optical object decomposition
- G03H2210/45—Representation of the decomposed object
- G03H2210/454—Representation of the decomposed object into planes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2222/00—Light sources or light beam properties
- G03H2222/40—Particular irradiation beam not otherwise provided for
- G03H2222/45—Interference beam at recording stage, i.e. following combination of object and reference beams
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/17—Element having optical power
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/19—Microoptic array, e.g. lens array
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2223/00—Optical components
- G03H2223/24—Reflector; Mirror
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2225/00—Active addressable light modulator
- G03H2225/10—Shape or geometry
- G03H2225/12—2D SLM
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2225/00—Active addressable light modulator
- G03H2225/20—Nature, e.g. e-beam addressed
- G03H2225/22—Electrically addressed SLM [EA-SLM]
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2225/00—Active addressable light modulator
- G03H2225/20—Nature, e.g. e-beam addressed
- G03H2225/24—Having movable pixels, e.g. microelectromechanical systems [MEMS]
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2225/00—Active addressable light modulator
- G03H2225/60—Multiple SLMs
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H2260/00—Recording materials or recording processes
- G03H2260/12—Photopolymer
Definitions
- the embodiments of the present disclosure relate to a holographic optical device, a holographic optical system, and a holographic display system.
- 3D (Three Dimensions) display technology has become increasingly popular and practical.
- the left and right eyes of the user can receive different images.
- the above two images can form a stereoscopic image pair with horizontal parallax.
- a stereoscopic image with depth is formed. image.
- the problem of visual convergence-accommodation conflict is likely to occur.
- the conflict of visual convergence adjustment can lead to problems such as blur and dizziness when the user is watching the 3D display.
- a holographic optical device in one aspect, includes a spectroscopic component, a transmission component, a focal length modulation component and an optical element.
- the light splitting component is configured to divide the received light into reference light and signal light, and output the reference light and the signal light; the reference light and the signal light are coherent light.
- the focal length modulation component includes a plurality of focal length modulation regions, and the focal lengths of the plurality of focal length modulation regions are different from each other.
- the optical element includes a recording medium layer; the recording medium layer includes a plurality of recording areas, and each recording area is located on a light exit path of a focal length modulation area.
- the transmission component is arranged on the light exit path of the light splitting component; the transmission component is configured to transmit the reference light to the plurality of recording areas and transmit the signal light to the plurality of focal length modulation Area.
- the signal light is modulated by the focal length modulation area and then transmitted to a recording area located on the light exit path of the focal length modulation area, and interferes with the reference light in the recording area to generate interference fringes.
- the recording medium layer is configured to record the generated interference fringes in the recording area.
- the transmission component includes: a first transmission part configured to transmit the reference light to the plurality of recording areas; a second transmission part configured to transmit the signal light to the plurality of recording areas; A part of the focal length modulation area among the plurality of focal length modulation areas; the third transmission part is configured to transmit the signal light to the remaining part of the focal length modulation area among the plurality of focal length modulation areas.
- At least one of the second transmission part and the third transmission part includes: a first reflection part and a second reflection part.
- the first reflection part is configured to receive the signal light emitted from the light splitting part and transmit the signal light to the second reflection part.
- the second reflective component is a rotatable reflective component, and the second reflective component is configured to transmit the received signal light to different focal length modulation areas under different rotation angles.
- the first reflection part in the second transmission part and the first reflection part in the third transmission part are the same reflection part; the first reflection part is a rotatable reflection part.
- the first reflective part is configured to receive the signal light emitted from the light splitting part, and transmit the signal light to the second reflective part of the second transmission part at a first rotation angle. The signal light is transmitted to the second reflection part of the third transmission part at two rotation angles.
- the number of the focal length modulation regions is four.
- the second reflection part of the second transmission part is configured to transmit the received signal light to the first focal length modulation area at a third rotation angle; and at a fourth rotation angle, to transmit the received signal light The signal light is transmitted to the second focal length modulation area.
- the second reflective part of the third transmission part is configured to transmit the received signal light to the third focal length modulation area at a fifth rotation angle; The signal light is transmitted to the fourth focal length modulation area.
- At least one of the first reflective part and the second reflective part is a microelectromechanical system micromirror.
- the first transmission part is a micro-electromechanical system micro-mirror.
- the focal length modulation component includes a spatial light modulator.
- the spatial light modulator includes an upper substrate, a lower substrate, a liquid crystal layer located between the two, a lower polarizer located on the side of the lower substrate away from the upper substrate, and an upper polarizer located on the side of the upper substrate away from the lower substrate sheet.
- the spatial light modulator has a plurality of subunits, and each subunit is provided with a first electrode and a second electrode, the first electrode is provided on the lower substrate, and the second electrode is provided on the lower substrate or On the upper substrate.
- the focal length modulation component includes a lens group; the lens group includes a plurality of lenses with different focal lengths, and an area where each lens is located is the focal length modulation area.
- the holographic optical device further includes: a collimating beam expander, the collimating beam expander is arranged on the light incident side of the light splitting component; the collimating beam expander is configured to be opposite Collimate and expand the beam to the light of the beam splitter.
- the recording medium layer is a photosensitive polymer layer.
- the holographic optical system includes: a light source; and the holographic optical device according to any one of the above embodiments.
- the light source is a display device or a projection device.
- a holographic display system in yet another aspect, includes a light source, a spectroscopic component, a first transmission part, and an optical element.
- the light splitting component is configured to receive the light emitted by the light source and output reference light; the first transmission part is arranged on the light exit path of the light splitting component; the first transmission part is configured to transmit the reference light Light is transmitted to the optical element.
- the optical element includes a recording medium layer; the recording medium layer includes a plurality of recording areas, and interference fringes are recorded in each recording area; the interference fringes pass through the holographic optical device according to any one of the above embodiments form.
- FIG. 1 is a structural diagram of a holographic optical device provided by some embodiments of the disclosure.
- 2A is a light path diagram of a signal light transmitted from the first focal length modulation area to the first recording area according to some embodiments of the present disclosure
- 2B is a light path diagram of a signal light transmitted from a second focal length modulation area to a second recording area according to some embodiments of the present disclosure
- 2C is an optical path diagram of a signal light transmitted from the third focal length modulation area to the third recording area according to some embodiments of the present disclosure
- 2D is a light path diagram of a signal light transmitted from the fourth focal length modulation area to the fourth recording area according to some embodiments of the present disclosure
- FIG. 3 is a schematic diagram of a holographic display system for displaying diffraction and reconstruction provided by some embodiments of the present disclosure
- FIG. 4 is a structural diagram of still another holographic optical device provided by some embodiments of the present disclosure.
- FIG. 5A is a structural diagram of another holographic optical device provided by some embodiments of the present disclosure.
- 5B is a structural diagram of another holographic optical device provided by some embodiments of the present disclosure.
- FIG. 6 is a structural diagram of a MEMS micro-mirror provided by some embodiments of the present disclosure.
- FIG. 7A is a structural diagram of a spatial light modulator provided by some embodiments of the present disclosure.
- FIG. 7B is a focal length modulation area distribution diagram of a spatial light modulator provided by some embodiments of the present disclosure.
- FIG. 7C is a structural diagram of a lens group provided by some embodiments of the present disclosure.
- FIG. 8 is a schematic diagram of a signal light having different image distances after being modulated according to some embodiments of the present disclosure
- FIG. 9 is a schematic diagram of recording interference fringes in different recording areas according to some embodiments of the present disclosure.
- first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, “plurality” means two or more.
- the expressions “coupled” and “connected” and their extensions may be used.
- the term “connected” may be used when describing some embodiments to indicate that two or more components are in direct physical or electrical contact with each other.
- the term “coupled” may be used when describing some embodiments to indicate that two or more components have direct physical or electrical contact.
- the term “coupled” or “communicatively coupled” may also mean that two or more components are not in direct contact with each other, but still cooperate or interact with each other.
- the embodiments disclosed herein are not necessarily limited to the content herein.
- At least one of A, B, and C has the same meaning as “at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
- a and/or B includes the following three combinations: A only, B only, and the combination of A and B.
- Holographic technology is a technology that uses the principles of interference and diffraction to record and reproduce the true three-dimensional image of an object.
- the three-dimensional image reproduced by holographic technology has strong stereoscopic effect and has real visual effects.
- some embodiments of the present disclosure provide a holographic optical device, as shown in FIG. 1, which includes a light splitting component 1, a transmission component 2, a focal length modulation component 3, and an optical element 4.
- the light splitting component 1 can receive the light emitted by the light source 7, divide the received light into a reference light 101 and a signal light 102, and output the reference light 101 and the signal light 102; the reference light 101 and the signal light 102 are coherent light.
- the light emitted by the light source 7 enters the spectroscopic component 1, it can be divided into a reference light 101 and a signal light 102.
- the reference light 101 and the signal light 102 are coherent light.
- the reference light Interference occurs when 101 and signal light 102 meet, resulting in interference fringes.
- the light splitting component 1 may be a beam splitter.
- the transmission component 2 is arranged on the light exit path of the light splitting component 1.
- the transmission component 2 can be directly arranged on the light exit side of the light splitting component 1.
- the transmission component 2 is used for transmitting the reference light 101 to the optical element 4 and transmitting the signal light 102 to each focal length modulation area of the focal length modulation component 3 respectively.
- the transmission component 2 transmits the signal light 102 to each focal length modulation area of the focal length modulation component 3, that is, through the transmission of the transmission component 2, the signal light 102 emitted from the light splitting component 1 can be directly transmitted to multiple focal lengths.
- a certain focal length modulation area in the modulation area therefore, the time when the signal light 102 is received by each focal length modulation area can be different.
- the signal light 102 emitted from the light splitting component 1 for the first time is transmitted to one of the focus modulation areas of the focus modulation component 3, and then the signal light emitted from the light splitting component 1 for the second time 102 is transmitted to another focal length modulation area of the focal length modulation part 3, and so on.
- the focal length modulation component 3 includes a plurality of focal length modulation regions 301, and the focal lengths of the plurality of focal length modulation regions 301 are different from each other. That is, each focal length modulation area 301 has different modulation capabilities for the signal light 102, for example, each focal length modulation area 301 has different phase modulation capabilities for the signal light 102.
- the signal light 102 from the spectroscopic component 1 is a plane wave, so the signal light 102 is parallel light before being modulated by the focal length modulation component 3.
- the signal light 102 passes through each focal length modulation area 301 of the focal length modulation component 3, the signal light 102 becomes a spherical wave.
- the images formed by the signal light 102 are respectively located in the focal length modulation area 301 through which it passes.
- the focal plane It can be seen that when the focal lengths of the multiple focal length modulation areas 301 are different from each other, when the signal light 102 from the transmission assembly 2 passes through the focal length modulation areas 301 of the focal length modulation part 3, it is modulated by the focal length modulation areas 301.
- the image distances of the images formed by the subsequent signal light 102 are different from each other.
- the focal length modulation areas 301 of different focal lengths can change the phase of the signal light to varying degrees, so that the image distance of the image formed by the signal light 102 modulated by each focal length modulation area 301 can be changed.
- the optical element 4 may be arranged on the light exit side of the focal length modulation component 3, and the optical element 4 includes a recording medium layer.
- the recording medium layer 41 includes a plurality of recording areas 401, and the plurality of recording areas 401 correspond to a plurality of focal length modulation areas 301 one-to-one, that is, each recording area 401 is located in a focal length modulation area 301.
- the recording medium layer 41 is used to record the interference fringes generated by the reference light 101 and the signal light 102 incident on the recording area 401 through the focal length modulation area 301 corresponding to the recording area 401 in each recording area 401.
- the reference light 101 emitted from the beam splitting component 1 may also be transmitted in sequence after being transmitted through the transmission component 2. Incident to each recording area 401 in the recording medium layer 41 of the optical element 4. That is, through the transmission of the transmission component 2, the reference light 101 emitted from the spectroscopic component 1 will be directly transmitted to a certain recording area 401 of the plurality of recording areas 401, so the time when each recording area 401 receives the reference light 101 may be different.
- the reference light 101 transmitted to each recording area 401 and the signal light 102 modulated by the focal length modulation area 301 corresponding to the recording area 401 in the focal length modulation part 3 arrive at the recording area synchronously in time. 401's.
- the reference light 101 emitted from the spectroscopic component 1 is incident on each recording area 401 at the same time.
- the optical element 4 may only include the recording medium layer 41, and in this case, the recording medium layer 41 is the optical element 4.
- the optical element 4 may also include a transparent carrier substrate, such as a glass substrate, and the recording medium layer 41 may be fixedly arranged on the transparent carrier substrate.
- multiple recording areas 401 can correspond to multiple focal length modulation areas 301 one-to-one, that is, after the signal light 102 is emitted from any focal length modulation area 301 of the focal length modulation component 3, it is transmitted to the focal length modulation area.
- Area 301 corresponds to the recording area 401.
- the signal light 102 is respectively transmitted to each focal length modulation area 301 of the focal length modulation component 3. Accordingly, as shown in FIGS. 2A to 2D, the signal light 102 is respectively transmitted to the corresponding focal length modulation area 301 Recording area 401. In other words, after the signal light 102 is transmitted to any focal length modulation area 301, it is immediately transmitted to the recording area 401 corresponding to the focal length modulation area 301, and the signal light is transmitted to any focal length modulation area 301 and modulated with the focal length.
- the recording area 401 corresponding to the area 301 is basically synchronized in time.
- both the signal light 102 and the reference light 101 generate interference fringes.
- the interference fringes include phase and amplitude information of the signal light 102.
- the interference fringes include phase information and amplitude information of the image.
- the above-mentioned reference light 101 needs to be used to illuminate the optical element 4 on which interference fringes have been recorded.
- the interference fringes generate a restored image under the illumination of the reference light 101.
- the reference light 101 can be incident on the optical element 4 during the "diffraction reproduction” process.
- Each recording area 401 in the recording medium layer 41 of the optical element 4 may also be incident on each recording area 401 in the recording medium layer 41 of the optical element 4 at the same time.
- the interference fringes will produce a complete restored image under the illumination of the reference light 101, the restored image in each recording area 401 has an image distance, and the restored images in multiple recording areas 401 The image distances are different from each other.
- the process of diffraction reproduction can be: for example, when the interference fringe of a recording area 401 is restored, the light output by the light source 7 needs to be split by the light splitting component 1 to produce the same reference light 101 when the interference fringe is formed. After the reference light 101 is irradiated on the interference fringe, the signal light 102 can be restored. After the interference fringes of the multiple recording areas 401 are respectively restored, multiple restored images with different depths of field are obtained, and the multiple restored images are combined to construct a reconstructed image 5 with a three-dimensional sense. When the reconstructed image 5 is observed by the human eye 9, it not only has a strong three-dimensional effect, but also does not have the problem of visual convergence adjustment conflict.
- the focal length modulation component 3 is configured to include multiple focal length modulation regions 301, and the focal lengths of the multiple focal length modulation regions 301 are different from each other, and the recording medium layer 41 is configured to include
- the multiple recording areas 401 corresponding to the focal length modulation area 301 one-to-one can record interference fringes with different phases in the multiple recording areas 401, respectively. Based on this, the restored images presented after the interference fringes in each recording area 401 are restored by the reference light 101 have different image distances.
- the human eye 9 is observing that the restored images are constructed from multiple restored images with different depths of field.
- the problem of visual convergence adjustment conflict can be avoided, and there will be no discomfort such as dizziness, diplopia, blur, etc., and the reconstructed image 5 observed by the human eye 9 will have a strong three-dimensional sense and optimal Contrast.
- the transmission component 2 includes: a first transmission part 201, a second transmission part 202 and a third transmission part 203.
- the first transmission part 201 is configured to transmit the reference light 101 to the optical element 4.
- the first transmission unit 201 may sequentially transmit the reference light 101 to each recording area 401 in the recording medium layer 41 of the optical element 4.
- the second transmission section 202 is configured to transmit the signal light 102 to a part of the focus modulation area 301 among all the focus modulation areas 301 of the focus modulation part 3. For example, as shown in FIG. 4, when the number of focal length modulation areas 301 in the focal length modulation part 3 is four, the second transmission section 202 is configured to transmit the signal light 102 to all the focal length modulation areas 301 of the focal length modulation part 3. The two focal length modulation areas 301. Wherein, the second transmission unit 202 may also adopt a time-sharing manner to sequentially transmit the signal light 102 to the two focus modulation areas 301 of the focus modulation component 3.
- the third transmission section 203 is configured to transmit the signal light 102 to the remaining focal length modulation areas 301 among all the focal length modulation areas 301 of the focal length modulation part 3. For example, as shown in FIG. 4, when the number of focal length modulation areas 301 in the focal length modulation part 3 is four, the third transmission part 203 is configured to transmit the signal light 102 to all the focal length modulation areas 301 of the focal length modulation part 3. The other two focal length modulation areas 301. Wherein, the third transmission unit 203 may also adopt a time-sharing manner to sequentially transmit the signal light 102 to the two focal length modulation areas 301 of the focal length modulation component 3.
- the second transmission part 202 and the third transmission part 203 are used to respectively transmit the signal light 102 to the multiple focal length modulation areas of the focal length modulation component 3, which is compared with the projection device using digital light processing in the related art.
- the accuracy requirements are lower, the structure is simpler, and the cost is lower.
- the number of focal length modulation regions 301 is at least three.
- the second transmission section 202 is configured to transmit the signal light 102 to one of the focus modulation areas 301 of the focus modulation section 3, and the third transmission section 203 is configured to transmit The signal light 102 is transmitted to two focal length modulation areas 301 among all the focal length modulation areas 301 of the focal length modulation component 3.
- At least one of the second transmission part 202 and the third transmission part 203 includes: a first reflection part 204 and a second reflection part 205.
- the first reflection part 204 is configured to receive the signal light 102 transmitted from the light splitting part 1 and transmit the signal light 102 to the second reflection part 205.
- the second reflective component 205 is a rotatable reflective component, and the second reflective component 205 is used to transmit the received signal light 102 to a different focal length modulation area 301 under different rotation angles.
- the number of focal length modulation regions 301 is four.
- the first reflection member 204 of the second transmission section 202 receives the signal light 102 from the spectroscopic section 1, it reflects the signal light 102 to the second reflection of the second transmission section 202
- the second reflecting part 205 of the second transmission part 202 transmits the signal light 102 to a focal length modulation area 301.
- the second reflection part 205 of the second transmission part 202 can be rotated to change the angle of the second reflection part 205 of the second transmission part 202 (for example, the second reflection part 205 of the second transmission part 202 shown by the dotted line in FIG.
- the signal light 102 is transmitted to another focal length modulation area 301 by using the second reflective part 205 of the second transmission part 202. Then, the first reflective member 204 of the second transmission part 202 is removed, and the signal light 102 is transmitted by the third transmission part 203. Similarly, after the first reflecting part 204 of the third transmission part 203 receives the signal light, it transmits the signal light 102 to the second reflecting part 205 of the third transmission part 203, and the second reflecting part 205 of the third transmission part 203 Then the signal light 102 is transmitted to another focal length modulation area 301.
- the reference light 101 is also synchronously transmitted to the recording area of the optical element 4 corresponding to the focal length modulation area 301 401.
- the transmission of the signal light 102 by the second transmission part 202 and the third transmission part 203 is relatively independent.
- the signal light 102 can be transmitted to different focal length modulation areas 301 by rotating the second reflective part 205 in the second transmission part 202 and the third transmission part 203, which is more convenient and fast.
- the first reflective component 204 in the second transmission portion 202 and the first reflective component 204 in the third transmission portion 203 are the same reflective component.
- the reflection part 204 is a rotatable reflection part, that is, the first reflection part 204 can be reused in the second transmission part 202 and the third transmission part 203.
- the first reflection part 204 is configured to receive the signal light 102 emitted from the light splitting part 1 and transmit the signal light 102 to the second reflection part 205, including: the first reflection part 204 transmits the signal light at a first rotation angle The light 102 is transmitted to the second reflection member 205 of the second transmission section 202, and the signal light 102 is transmitted to the second reflection member 205 of the third transmission section 203 at the second rotation angle.
- the first reflection part 204 can separate the components from the spectroscopic part 1
- the signal light 102 is transmitted to the second reflection member 205 of the second transmission section 202 and the second reflection member 205 of the third transmission section 203.
- the first reflective part 204 in the second transmission part 202 and the first reflective part 204 in the third transmission part 203 are multiplexed, so that the structure of the entire holographic optical device is relatively Simple and easy to build.
- the number of focal length modulation regions 301 is four.
- the second reflective member 205 is configured to transmit the received signal light 102 to a different focal length modulation area 301 under different rotation angles, including: the second reflective member 205 of the second transmission portion 202 is at a third rotation angle
- the received signal light 102 is transmitted to the first focal length modulation area 301; the second reflective member 205 of the second transmission portion 202 transmits the received signal light 102 to the second focal length modulation area at the fourth rotation angle 301;
- the second reflection part 205 of the third transmission part 203 transmits the received signal light 102 to the third focal length modulation area 301 at the fifth rotation angle;
- the second reflection part 205 of the third transmission part 203 is in the sixth Under the rotation angle, the received signal light 102 is transmitted to the fourth focal length modulation area 301.
- the second reflecting part 205 of the second transmission part 202 is at the third rotation angle (for example, as shown in FIGS. 5A and 5B).
- the signal light 102 is transmitted to a focal length modulation area 301 under the second reflective part 205 of the second transmission part 202 shown by the line.
- the second reflective part 205 of the second transmission part 202 can be rotated so that its rotation angle becomes a fourth rotation angle (for example, the second reflection part 205 of the second transmission part 202 shown by the dotted line in FIGS. 5A and 5B) , To transmit the signal light 102 to another focal length modulation area 301.
- the second reflection part 205 of the third transmission part 203 is at the fifth rotation angle (for example, the second reflection part shown by the solid line in FIGS. 5A and 5B) Under the second reflection part 205) of the third transmission part 203, the signal light 102 is transmitted to another focal length modulation area 301.
- the second reflecting part 205 of the third transmission part 203 can be rotated to change its angle to a sixth rotation angle (for example, the second reflecting part 205 of the third transmission part 203 shown by the dashed line in FIGS. 5A and 5B) to The signal light 102 is transmitted to the remaining focus modulation area 301.
- the second transmission part 202 can transmit the signal light 102 to the two focal length modulation areas 301.
- the third transmission part 203 can also transmit the signal light 102 to the remaining two focal length modulation areas.
- the area 301 is fully utilized for the second transmission unit 202 and the third transmission unit 203.
- first reflective component 204 and the second reflective component 205 are both micro-electromechanical system micro-mirrors.
- the Micro-Electro-Mechanical System (MEMS) micro-mirror is manufactured using optical MEMS technology.
- the micro-light mirror and the MEMS driver are integrated to form the MEMS micro-mirror.
- the MEMS driver is electromagnetically driven, which has the advantages of low driving voltage, no need for a booster chip, and higher driving frequency, so that the MEMS driver can drive the low-light reflector to twist a certain angle.
- the principle of rotation of the MEMS micro-mirror 6 is that, for example, four coils 6011 are provided on the back (non-reflective surface) of the micro-light reflector 601, and a ring magnet 602 is provided in the MEMS driver.
- 6011 corresponds to the 4 positions on the ring magnet one by one, namely the 4 positions A, B, C, and D shown in Figure 6.
- the two coils 6011 will generate AC excitation signals with a phase difference of 90°, which causes the two coils 6011 to generate magnetic fields with opposite polarities and alternately changing.
- the magnetic fields generated by the two coils 6011 respectively interact with the ring magnet 602 to generate torques in opposite directions.
- the low-light reflector 601 will twist with the connecting line between the B and D positions as the axis. In the same way, if current is applied to the other two coils 6011 corresponding to positions B and D, the low-light reflector 601 will be twisted with the connecting line between the A and B positions as the axis.
- the low-light reflector 601 can be changed after twisting. The exit direction of the signal light 102 incident thereon.
- Using the MEMS micro-mirror 6 to change the direction of the signal light 102 has high control accuracy and is easy to operate.
- the first transmission part 201 is a MEMS micro mirror 6.
- the MEMS micro mirror 6 as the first transmission section 201 can be used. It is convenient to adjust the transmission direction of the reference light 101, so that the reference light 101 transmitted by the spectroscopic component 1 can be transmitted to each recording area 401 of the optical element 4, respectively.
- the above-mentioned use of the MEMS micro-mirror 6 to change the transmission direction of the reference light 101 has high control accuracy.
- the first reflective part 204, the second reflective part 205 and the first transmission part are all MEMS micro-mirrors 6, it is convenient to fabricate the transmission component.
- the focal length modulation component 3 is a spatial light modulator 31.
- the spatial light modulator 31 includes an upper substrate 311, a lower substrate 312, a liquid crystal layer 313 between the two, a lower polarizer 314 on the side of the lower substrate 312 away from the upper substrate 311, and a lower substrate 311.
- the upper polarizer 315 on the side away from the lower substrate 312.
- the spatial light modulator 31 has a plurality of sub-units. Each sub-unit is provided with a first electrode 316 and a second electrode 317.
- the first electrode 316 is provided on the lower substrate 312, and the second electrode 317 is provided on the lower substrate 312 or the upper substrate 311 on.
- first electrode 316 and the second electrode 317 are insulated from each other.
- the first electrode 316 is disposed on the lower substrate 312, and the second electrode 317 is disposed on the upper substrate 311; the first electrodes 316 in different subunits are insulated from each other, and the first electrodes 316 in all subunits are insulated from each other.
- the two electrodes 317 are electrically connected as a whole.
- the first electrode 316 and the second electrode 317 are both disposed on the lower substrate 312, and they are disposed in different layers; the first electrodes 316 in different subunits are insulated from each other, and the second electrodes 317 in all subunits are electrically insulated from each other.
- the connection is integrated, and the first electrode 316 is disposed on the side of the second electrode 317 close to the upper substrate 311.
- the first electrode 316 and the second electrode 317 are both disposed on the lower substrate 312, and they are disposed in the same layer; the first electrodes 316 in different subunits are insulated from each other, and the second electrodes 317 in different subunits are mutually insulated. Insulation, the first electrode 316 and the second electrode 317 have a comb-tooth structure including a plurality of strip-shaped sub-electrodes.
- the aforementioned spatial light modulator 31 is a device that modulates the spatial distribution of light waves.
- the sub-units on the spatial light modulator 31 can be referred to as pixels of the spatial light modulator 31.
- the written information includes information containing the control of the above-mentioned pixels, and the above-mentioned written information is transmitted to the corresponding pixel position through addressing, so that the above-mentioned information can be written Under the control of, modulate some parameters of light waves, such as phase.
- the above-mentioned pixels can be grouped, and each group serves as a focal length modulation area 301.
- the above-mentioned pixels may be divided into four groups, each group is used as a focal length modulation area, and each group independently controls its pixels, so that the focal length of the area where each group is located is independently controlled.
- the above-mentioned spatial light modulator 31 can be used to modulate the phase of the signal light 102 to achieve the The image distance of the image formed after passing through the focal length modulation area 301 is modulated.
- the aforementioned use of the spatial light modulator 31 to modulate the image distance of the image formed by the signal light 102 after passing through the focal length modulation area 301 has the advantages of fast response speed and high efficiency.
- the focal length modulation component 3 is a lens group 32, the lens group 32 includes a plurality of lenses with different focal lengths, and the area where each lens is located is a focal length modulation area 301.
- the image distance of the image formed by the signal light 102 emitted from each lens may be equal to the focal length of the lens.
- the modulation component 3 composed of the lens has a simple structure and is easy to manufacture.
- the signal light 102 has different image distances after being modulated by the focal length modulating component 3.
- the interference fringes generated on the optical element 4 with the reference light 101 also contain the image distance information of the signal light 102. .
- the restored image restored by interference fringes will contain the image distance information, such as image distances f1, f2, f3, and f4 as shown in FIG. 8.
- the restored images with different image distances have different depths of field, so the optical element 4 has multiple depths of field.
- the holographic optical device further includes a collimating beam expander 8, which is arranged on the light incident side of the light splitting component 1; and the collimating beam expander 8 is used for alignment
- the light emitted by the light source 7 undergoes collimation and beam expansion processing.
- the collimated and beam-expanded light is easily divided into reference light 101 and signal light 102.
- the recording medium layer 41 is a photosensitive polymer layer, and the photosensitive polymer layer is disposed on the glass substrate of the optical element 4.
- the photosensitive polymer is highly sensitive to light, and its structure or properties will change significantly under the action of light, so it can be used to record interference fringes.
- each recording area 401 is used to record interference fringes formed by the signal light 102 and the reference light 101 of a certain focal length.
- the multiple recording areas 401 in the above-mentioned photosensitive polymer layer are discretely distributed, and only one glass substrate is required to support the photosensitive polymer layer. Therefore, the thickness of the entire optical element 4 is small, so the The optical element in the disclosed embodiment has the advantage of higher display brightness when restoring an image.
- some embodiments of the present disclosure also provide a holographic optical system, including a light source 7 and the above-mentioned holographic optical device.
- the holographic optical system provided in this embodiment has the same beneficial effects as the above-mentioned holographic optical device, so it will not be repeated here.
- the light source 7 is a display device or a projection device.
- the display device or the projection device is used to output images, and each image is output in turn. All light contained in each image is divided into reference light 101 and signal light 102 after passing through the light splitting component 1.
- the reference light 101 and The signal light 102 will interfere with each recording area 401 on the optical element 4 and form interference fringes.
- Using a display device or a projection device to output an image has the advantages of large storage capacity and easy control of the output image.
- some of the present disclosure also provides a holographic display system, which includes a light source 7, a light splitting part 1, a first transmission part 201 and an optical element 4.
- the spectroscopic part 1 is configured to receive the light emitted by the light source 7 and output the reference light 101.
- the first transmission part 201 is arranged on the light exit path of the light splitting component 1, for example, the first transmission part 201 may be arranged on the light exit side of the light splitting component 1.
- the first transmission part 201 is configured to transmit the reference light 101 to the optical element 4.
- the optical element 4 can be arranged on the light exit side of the first transmission part 201.
- the optical element 4 includes a recording medium layer 41; the recording medium layer 41 includes a plurality of recording areas 401, and interference fringes are recorded in each recording area 401; interference The fringes are formed by the above-mentioned holographic optical device.
- the holographic display system provided in this embodiment can realize "diffraction reproduction", in which the light splitting component 1, the first transmission portion 201 and the optical element 4 can be combined with the light splitting component 1, the first transmission portion 201 and the optical element in the above-mentioned holographic optical device.
- the element 4 is the same, and will not be repeated here.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
Abstract
Description
Claims (14)
- 一种全息光学装置,包括:分光部件,被配置为将接收到的光分成参考光和信号光,并输出所述参考光和所述信号光;所述参考光和所述信号光为相干光;焦距调制部件,包括多个焦距调制区,多个焦距调制区的焦距互不相同;光学元件,包括记录介质层;所述记录介质层包括多个记录区,每个记录区位于一个焦距调制区的出光路径上;传输组件,设置于所述分光部件的出光路径上;所述传输组件被配置为将所述参考光传输至所述多个记录区,并将所述信号光传输至所述多个焦距调制区;其中,所述信号光经焦距调制区调制后传输至位于该焦距调制区出光路径上的记录区,并在该记录区中与所述参考光发生干涉,产生干涉条纹;所述记录介质层被配置为在记录区中,记录所产生的干涉条纹。
- 根据权利要求1所述的全息光学装置,其中,所述传输组件包括:第一传输部,被配置为将所述参考光传输至所述多个记录区;第二传输部,被配置为将所述信号光传输至所述多个焦距调制区中的部分焦距调制区;第三传输部,被配置为将所述信号光传输至所述多个焦距调制区中的其余部分焦距调制区。
- 根据权利要求2所述的全息光学装置,其中,所述第二传输部和所述第三传输部中的至少一者包括:第一反射部件和第二反射部件;所述第一反射部件被配置为接收从所述分光部件出射的所述信号光,并将所述信号光传输至所述第二反射部件;所述第二反射部件为可旋转反射部件,所述第二反射部件被配置为在不同旋转角度下,将接收的所述信号光传输至不同的所述焦距调制区。
- 根据权利要求3所述的全息光学装置,其中,所述第二传输部中的第一反射部件和所述第三传输部件中的第一反射部件为同一反射部件;所述第一反射部件为可旋转反射部件;所述第一反射部件被配置为接收从所述分光部件出射的所述信号光,并在第一旋转角度下将所述信号光传输至所述第二传输部的第二反 射部件,在第二旋转角度下将所述信号光传输至所述第三传输部的第二反射部件。
- 根据权利要求3或4所述的全息光学装置,其中,所述焦距调制区的个数为四个;所述第二传输部的第二反射部件被配置为在第三旋转角度下,将接收的所述信号光传输至第一个所述焦距调制区;在第四旋转角度下,将接收的所述信号光传输至第二个所述焦距调制区;所述第三传输部的第二反射部件被配置为在第五旋转角度下,将接收的所述信号光传输至第三个所述焦距调制区;在第六旋转角度下,将接收的所述信号光传输至第四个所述焦距调制区。
- 根据权利要求3~5中任一项所述的全息光学装置,其中,所述第一反射部件和所述第二反射部件中的至少一者为微机电系统微反射镜。
- 根据权利要求2~6中任一项所述的全息光学装置,其中,所述第一传输部为微机电系统微反射镜。
- 根据权利要求1~7中任一项所述的全息光学装置,其中,所述焦距调制部件包括空间光调制器;所述空间光调制器包括上基板、下基板、位于二者之间的液晶层、位于下基板远离所述上基板一侧的下偏光片以及位于上基板远离所述下基板一侧的上偏光片;所述空间光调制器具有多个子单元,每个子单元中设置有第一电极和第二电极,所述第一电极设置于所述下基板上,所述第二电极设置于所述下基板或所述上基板上。
- 根据权利要求1~7中任一项所述的全息光学装置,其中,所述焦距调制部件包括透镜组;所述透镜组包括多个焦距互不相同的透镜,每一个透镜所在区域为一个所述焦距调制区。
- 根据权利要求1~9中任一项所述的全息光学装置,还包括:准直扩束器,所述准直扩束器设置于所述分光部件的入光侧;所述准直扩束器被配置为对射向所述分光部件的光进行准直和扩束处理。
- 根据权利要求1~10中任一项所述的全息光学装置,其中,所述记录介质层为光敏聚合物层。
- 一种全息光学系统,包括:光源;以及,权利要求1~11任一项所述的全息光学装置。
- 根据权利要求12所述的全息光学系统,其中,所述光源为显示装置或投影装置。
- 一种全息显示系统,包括光源、分光部件、第一传输部以及光学元件;所述分光部件被配置为接收所述光源发出的光,并输出参考光;所述第一传输部设置在所述分光部件的出光路径上;所述第一传输部被配置为将所述参考光传输至所述光学元件;其中,所述光学元件包括记录介质层;所述记录介质层包括多个记录区,在每个记录区均记录有干涉条纹;所述干涉条纹通过权利要求1~11任一项所述的全息光学装置形成。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/262,959 US11860574B2 (en) | 2019-05-28 | 2020-05-25 | Holographic optical apparatus, holographic optical system, and holographic display system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910453827.0 | 2019-05-28 | ||
CN201910453827.0A CN110187626B (zh) | 2019-05-28 | 2019-05-28 | 全息光学装置、全息光学系统以及全息显示系统 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020238834A1 true WO2020238834A1 (zh) | 2020-12-03 |
Family
ID=67718367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/092024 WO2020238834A1 (zh) | 2019-05-28 | 2020-05-25 | 全息光学装置、全息光学系统以及全息显示系统 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11860574B2 (zh) |
CN (1) | CN110187626B (zh) |
WO (1) | WO2020238834A1 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110187626B (zh) | 2019-05-28 | 2021-03-16 | 京东方科技集团股份有限公司 | 全息光学装置、全息光学系统以及全息显示系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008032939A1 (en) * | 2006-09-11 | 2008-03-20 | Samsung Electronics Co., Ltd. | Apparatus for retroreflecting reference beam and holographic information recording/reproducing device employing the same |
CN103197429A (zh) * | 2013-04-27 | 2013-07-10 | 南开大学 | 一种基于光学4f系统的超大成像深度三维显示方法 |
CN104714392A (zh) * | 2015-03-27 | 2015-06-17 | 北京京东方茶谷电子有限公司 | 全息3d记录装置、再现装置、显示设备 |
CN106125318A (zh) * | 2016-08-16 | 2016-11-16 | 四川大学 | 基于全息光学元件的双面集成成像3d显示方法 |
CN109799688A (zh) * | 2019-03-07 | 2019-05-24 | 京东方科技集团股份有限公司 | 一种光学模组、图像记录装置及其工作方法 |
CN110187626A (zh) * | 2019-05-28 | 2019-08-30 | 京东方科技集团股份有限公司 | 全息光学装置、全息光学系统以及全息显示系统 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100419465C (zh) * | 2005-04-28 | 2008-09-17 | 上海理工大学 | 一种电控变焦光学成像系统制作方法 |
US8634119B2 (en) * | 2010-07-09 | 2014-01-21 | Tipd, Llc | System for holography |
JP6156147B2 (ja) * | 2011-11-17 | 2017-07-05 | 株式会社ニコン | エンコーダ装置、光学装置、露光装置、及びデバイス製造方法 |
CN106292238B (zh) * | 2015-05-20 | 2019-03-05 | 华中科技大学 | 一种反射式离轴数字全息显微测量装置 |
US20170090421A1 (en) * | 2015-09-24 | 2017-03-30 | Fuji Xerox Co., Ltd. | Image recording device |
US10877438B2 (en) * | 2016-01-07 | 2020-12-29 | Magic Leap, Inc. | Dynamic fresnel projector |
CN206421129U (zh) * | 2017-01-23 | 2017-08-18 | 南京先进激光技术研究院 | 一种液晶选区光控取向装置 |
CN106773585A (zh) * | 2017-02-10 | 2017-05-31 | 深圳大学 | 基于电控变焦透镜的透射式数字全息显微成像装置 |
CN107367845B (zh) * | 2017-08-31 | 2020-04-14 | 京东方科技集团股份有限公司 | 显示系统和显示方法 |
FR3073956B1 (fr) * | 2017-11-22 | 2019-12-27 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Methode d'acquisition d'hologrammes par holographie electronique hors axe optique en mode precession |
CN207676126U (zh) * | 2017-11-30 | 2018-07-31 | 青岛全维医疗科技有限公司 | 相移干涉条纹生成系统 |
CN108501363B (zh) * | 2018-03-21 | 2021-06-08 | 深圳大学 | 一种基于全息投影的3d打印方法及系统 |
-
2019
- 2019-05-28 CN CN201910453827.0A patent/CN110187626B/zh active Active
-
2020
- 2020-05-25 US US17/262,959 patent/US11860574B2/en active Active
- 2020-05-25 WO PCT/CN2020/092024 patent/WO2020238834A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008032939A1 (en) * | 2006-09-11 | 2008-03-20 | Samsung Electronics Co., Ltd. | Apparatus for retroreflecting reference beam and holographic information recording/reproducing device employing the same |
CN103197429A (zh) * | 2013-04-27 | 2013-07-10 | 南开大学 | 一种基于光学4f系统的超大成像深度三维显示方法 |
CN104714392A (zh) * | 2015-03-27 | 2015-06-17 | 北京京东方茶谷电子有限公司 | 全息3d记录装置、再现装置、显示设备 |
CN106125318A (zh) * | 2016-08-16 | 2016-11-16 | 四川大学 | 基于全息光学元件的双面集成成像3d显示方法 |
CN109799688A (zh) * | 2019-03-07 | 2019-05-24 | 京东方科技集团股份有限公司 | 一种光学模组、图像记录装置及其工作方法 |
CN110187626A (zh) * | 2019-05-28 | 2019-08-30 | 京东方科技集团股份有限公司 | 全息光学装置、全息光学系统以及全息显示系统 |
Also Published As
Publication number | Publication date |
---|---|
US11860574B2 (en) | 2024-01-02 |
CN110187626A (zh) | 2019-08-30 |
CN110187626B (zh) | 2021-03-16 |
US20210240133A1 (en) | 2021-08-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Wang et al. | Holographic capture and projection system of real object based on tunable zoom lens | |
US8730129B2 (en) | Advanced immersive visual display system | |
US10334236B2 (en) | See-through type display apparatus | |
CN102313990B (zh) | 激光扫描虚拟图像显示器 | |
US20060033992A1 (en) | Advanced integrated scanning focal immersive visual display | |
JP2008509438A (ja) | 可変固定視距離で走査される光表示装置 | |
US11243396B2 (en) | Display apparatus | |
EP3513254B1 (en) | Holographic wide field of view display | |
JP2007086145A (ja) | 3次元表示装置 | |
TW201107789A (en) | Light modulation device for a display for representing two- and/or three-dimensional image content | |
KR20180051187A (ko) | 홀로그래픽 광학 소자의 제조 장치 및 홀로그램 재생 장치 | |
KR102659198B1 (ko) | 저감된 색수차를 갖는 홀로그래픽 디스플레이 장치 | |
WO2020238834A1 (zh) | 全息光学装置、全息光学系统以及全息显示系统 | |
JPWO2020110757A1 (ja) | 映像投影装置 | |
US11320785B2 (en) | Holographic optical element and manufacturing method thereof, image reconstruction method and augmented reality glasses | |
US20230408824A1 (en) | Optical systems and display engines for augmented reality and near-eye headsets | |
KR20210052091A (ko) | 다중 깊이 표현이 가능한 디스플레이 장치 | |
US10613480B2 (en) | Holographic display device including spatial light modulator and light directing unit converging output light of the spatial light modulator, and method for controlling the same | |
KR102095088B1 (ko) | 비주기적으로 설계된 광학 소자를 이용하여 3차원 홀로그래픽 영상을 형성하는 장치 및 방법 | |
JP2023184599A (ja) | コリメート走査ミラーを伴う投影システム | |
US20180143435A1 (en) | Displaying device and method thereof | |
JP2003015079A (ja) | 立体像表示方法及び表示装置 | |
CN110989175B (zh) | 基于偏振体全息光栅的分辨率增强光场显示器 | |
US20240151964A1 (en) | Actuated pupil steering for head-mounted display systems | |
WO2013029219A1 (zh) | 一种三维成像的方法和装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20812558 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20812558 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 21/07/2022) |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20812558 Country of ref document: EP Kind code of ref document: A1 |