WO2012069811A3 - Systèmes holographiques - Google Patents

Systèmes holographiques Download PDF

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Publication number
WO2012069811A3
WO2012069811A3 PCT/GB2011/052258 GB2011052258W WO2012069811A3 WO 2012069811 A3 WO2012069811 A3 WO 2012069811A3 GB 2011052258 W GB2011052258 W GB 2011052258W WO 2012069811 A3 WO2012069811 A3 WO 2012069811A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
slm
image
sensing pixel
describe
Prior art date
Application number
PCT/GB2011/052258
Other languages
English (en)
Other versions
WO2012069811A2 (fr
Inventor
Adrian James Cable
Raul Benet Ballester
Original Assignee
Light Blue Optics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Light Blue Optics Ltd filed Critical Light Blue Optics Ltd
Publication of WO2012069811A2 publication Critical patent/WO2012069811A2/fr
Publication of WO2012069811A3 publication Critical patent/WO2012069811A3/fr

Links

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
    • G03H1/02—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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0486—Improving or monitoring the quality of the record, e.g. by compensating distortions, aberrations
    • 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
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects 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
    • G03H1/2294—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
    • G03H1/26—Processes or apparatus specially adapted to produce multiple sub- holograms or to obtain images from them, e.g. multicolour technique
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0486—Improving or monitoring the quality of the record, e.g. by compensating distortions, aberrations
    • G03H2001/0491—Improving or monitoring the quality of the record, e.g. by compensating distortions, aberrations by monitoring the hologram formation, e.g. via a feed-back loop
    • 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
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0808—Methods of numerical synthesis, e.g. coherent ray tracing [CRT], diffraction specific
    • G03H2001/0825—Numerical processing in hologram space, e.g. combination of the CGH [computer generated hologram] with a numerical optical element
    • 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
    • G03H2001/2213—Diffusing screen revealing the real holobject, e.g. container filed with gel to reveal the 3D holobject
    • G03H2001/2215—Plane screen
    • 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
    • G03H2001/2244—Means for detecting or recording the holobject
    • G03H2001/2247—Means for detecting or recording the holobject for testing the hologram or holobject
    • 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
    • G03H1/2249—Holobject properties
    • G03H2001/2263—Multicoloured holobject
    • G03H2001/2271—RGB holobject
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2210/00—Object characteristics
    • G03H2210/10—Modulation characteristics, e.g. amplitude, phase, polarisation
    • 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
    • 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
    • G03H2222/10—Spectral composition
    • G03H2222/17—White light
    • G03H2222/18—RGB trichrome light
    • 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
    • G03H2222/35—Transverse intensity distribution of the light beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/12—Amplitude mask, e.g. diaphragm, Louver filter
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2223/00—Optical components
    • G03H2223/50—Particular location or purpose of optical element
    • G03H2223/54—Filtering the holobject information
    • 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
    • G03H2225/30—Modulation
    • 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
    • G03H2225/30—Modulation
    • G03H2225/31—Amplitude only
    • 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
    • G03H2225/30—Modulation
    • G03H2225/32—Phase only
    • 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
    • G03H2240/00—Hologram nature or properties
    • G03H2240/50—Parameters or numerical values associated with holography, e.g. peel strength
    • G03H2240/51—Intensity, power or luminance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Holo Graphy (AREA)

Abstract

L'invention concerne un appareil et des procédés permettant de générer une image par holographie, ainsi que des modulateurs de lumière spatiaux que l'on utilise dans ces techniques. L'invention concerne tout particulièrement un modulateur de lumière spatial (SLM) comprenant plusieurs pixels de modulation de lumière afin de diffracter un faisceau de lumière cohérente et de générer ainsi une image à partir d'un hologramme affiché sur ledit SLM, l'un au moins des pixels de modulation de lumière étant remplacé par un pixel de détection de lumière afin de détecter une intensité dudit faisceau de lumière cohérente à la position du pixel de détection de lumière. Le SLM peut être inclus dans un assemblage optique pour un système de projection d'image holographique, ceci en combinaison avec un système d'éclairage laser afin d'éclairer le SLM et un système de sortie optique afin d'émettre une image.
PCT/GB2011/052258 2010-11-22 2011-11-18 Systèmes holographiques WO2012069811A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1019749.9 2010-11-22
GB1019749.9A GB2485609B (en) 2010-11-22 2010-11-22 Holographic systems

Publications (2)

Publication Number Publication Date
WO2012069811A2 WO2012069811A2 (fr) 2012-05-31
WO2012069811A3 true WO2012069811A3 (fr) 2012-07-19

Family

ID=43467088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2011/052258 WO2012069811A2 (fr) 2010-11-22 2011-11-18 Systèmes holographiques

Country Status (2)

Country Link
GB (2) GB2485609B (fr)
WO (1) WO2012069811A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2500364B (en) * 2012-01-30 2019-06-12 Dualitas Ltd Image display systems.
US9049413B2 (en) 2013-07-30 2015-06-02 Dolby Laboratories Licensing Corporation Multiple stage modulation projector display systems having efficient light utilization
PL3028099T3 (pl) * 2013-07-30 2020-05-18 Dolby Laboratories Licensing Corporation Projekcyjne systemy wyświetlania o niemechanicznym zwierciadlanym kierowaniu wiązki
US8917327B1 (en) 2013-10-04 2014-12-23 icClarity, Inc. Method to use array sensors to measure multiple types of data at full resolution of the sensor
CN110286484A (zh) 2013-10-20 2019-09-27 Mtt创新公司 光场投影装置及方法
EP3143763B8 (fr) 2014-05-15 2023-12-27 MTT Innovation Incorporated Projecteur de lumière et méthode d'affichage d'une image
CN104950654B (zh) * 2015-07-14 2017-08-11 京东方科技集团股份有限公司 空间光调制器及用空间光调制器显示计算全息图的方法
CN114679577B (zh) 2017-09-25 2024-03-26 杜比实验室特许公司 用于在双重调制投影***中显示高质量图像的***和方法
GB2582370B (en) * 2019-03-22 2022-11-02 Dualitas Ltd Holographic projector
GB2586131B (en) * 2019-08-05 2022-07-20 Dualitas Ltd Holographic projector
CN113759412B (zh) * 2020-06-03 2023-08-22 上海联影医疗科技股份有限公司 获取束流形状和能量探测单元响应特征的方法、装置
GB202015789D0 (en) * 2020-10-06 2020-11-18 Vividq Ltd Illumination power control for a computer-generated hologram display

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070035803A1 (en) * 2001-09-03 2007-02-15 Thomas Swan & Co. Ltd. Optical processing
US20090097758A1 (en) * 2004-04-26 2009-04-16 Ntt Docomo, Inc. Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method
US20100014134A1 (en) * 2008-07-16 2010-01-21 Light Blue Optics Ltd Holographic image display system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002040560A (ja) * 2000-07-31 2002-02-06 Denso Corp ホログラムディスプレイ装置
WO2006134398A2 (fr) 2005-06-14 2006-12-21 Light Blue Optics Ltd Systemes de traitement de signal
US7651227B2 (en) * 2005-09-13 2010-01-26 Texas Instruments Incorporated Projection system and method including spatial light modulator and compact diffractive optics
GB0601481D0 (en) 2006-01-25 2006-03-08 Light Blue Optics Ltd Methods and apparatus for displaying images using holograms
GB2436676B (en) 2006-03-28 2008-02-20 Light Blue Optics Ltd Holographic display devices
GB2438681B (en) 2006-06-02 2010-10-20 Light Blue Optics Ltd Methods and apparatus for displaying colour images using holograms
GB2456170B (en) 2008-01-07 2012-11-21 Light Blue Optics Ltd Holographic image display systems
GB0907297D0 (en) * 2009-04-29 2009-06-10 Light Blue Optics Ltd Dynamic backlighting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070035803A1 (en) * 2001-09-03 2007-02-15 Thomas Swan & Co. Ltd. Optical processing
US20090097758A1 (en) * 2004-04-26 2009-04-16 Ntt Docomo, Inc. Optical wavefront control pattern generating apparatus and optical wavefront control pattern generating method
US20100014134A1 (en) * 2008-07-16 2010-01-21 Light Blue Optics Ltd Holographic image display system

Also Published As

Publication number Publication date
GB2555332A (en) 2018-04-25
WO2012069811A2 (fr) 2012-05-31
GB2555332B (en) 2018-07-11
GB2485609A (en) 2012-05-23
GB201019749D0 (en) 2011-01-05
GB201720709D0 (en) 2018-01-24
GB2485609B (en) 2018-02-14

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