GB201118559D0 - Image production - Google Patents

Image production

Info

Publication number
GB201118559D0
GB201118559D0 GBGB1118559.2A GB201118559A GB201118559D0 GB 201118559 D0 GB201118559 D0 GB 201118559D0 GB 201118559 A GB201118559 A GB 201118559A GB 201118559 D0 GB201118559 D0 GB 201118559D0
Authority
GB
United Kingdom
Prior art keywords
slm
pixels
data
display
colour
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GBGB1118559.2A
Other versions
GB2496108B (en
GB2496108A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Two Trees Photonics Ltd
Original Assignee
Two Trees Photonics 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 Two Trees Photonics Ltd filed Critical Two Trees Photonics Ltd
Priority to GB1118559.2A priority Critical patent/GB2496108B/en
Publication of GB201118559D0 publication Critical patent/GB201118559D0/en
Publication of GB2496108A publication Critical patent/GB2496108A/en
Application granted granted Critical
Publication of GB2496108B publication Critical patent/GB2496108B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G03H1/0841—Encoding method mapping the synthesized field into a restricted set of values representative of the modulator parameters, e.g. detour phase coding
    • 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
    • G03H1/10—Processes or apparatus for producing holograms using modulated reference beam
    • G03H1/12—Spatial modulation, e.g. ghost imaging
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • 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
    • G03H1/16—Processes or apparatus for producing holograms using Fourier transform
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3197—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using light modulating optical valves
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/014—Head-up displays characterised by optical features comprising information/image processing systems
    • 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
    • G03H2210/20—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
    • 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
    • G03H2227/00—Mechanical components or mechanical aspects not otherwise provided for
    • G03H2227/02—Handheld portable device, e.g. holographic camera, mobile holographic display

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Holo Graphy (AREA)
  • Liquid Crystal (AREA)

Abstract

A method of operating a pixellated spatial light modulator (SLM) 350 to display data representing a polychromatic image, wherein a first subset of modulator pixels are allocated to first colour image information and a second subset of SLM pixels are allocated to second colour information. The numbers of pixels in the first and second subsets are determined by the respective first and second color wavelengths, to which the human eye has differing sensitivities. Also disclosed is a projector forming a 2D polychromatic image, using the same method of allocation of amount of pixels based on colour wavelength, and a liquid crystal on silicon (LCOS) SLM to display Fourier transform (FT) data. Based on different colours, different pixel subsets comprise differing, greater or lesser, pixel numbers. Phase-only, holographic diffractive image data (e.g., based on the Gerchberg-Saxton, FIENUP, FIDOC, direct binary search or genetic algorithms) may be displayed, and the SLM may modulate to apply a phase delay to incident light. Fourier data for plural colours may be displayed simultaneously on the SLM. The method cen be applied to a head-up display (HUD), 300.
GB1118559.2A 2011-10-26 2011-10-26 Image production Active GB2496108B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1118559.2A GB2496108B (en) 2011-10-26 2011-10-26 Image production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1118559.2A GB2496108B (en) 2011-10-26 2011-10-26 Image production

Publications (3)

Publication Number Publication Date
GB201118559D0 true GB201118559D0 (en) 2011-12-07
GB2496108A GB2496108A (en) 2013-05-08
GB2496108B GB2496108B (en) 2015-03-04

Family

ID=45373499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1118559.2A Active GB2496108B (en) 2011-10-26 2011-10-26 Image production

Country Status (1)

Country Link
GB (1) GB2496108B (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017115077A1 (en) 2015-12-30 2017-07-06 Daqri Holographics Ltd Dynamic holography focused depth printing device
US11281003B2 (en) 2015-12-30 2022-03-22 Dualitas Ltd Near eye dynamic holography
EP3295257B1 (en) 2015-12-30 2019-05-15 Dualitas Ltd. Dynamic holography non-scanning printing method
GB2547929B (en) * 2016-03-03 2018-02-21 Daqri Holographics Ltd Display system
CN106059677A (en) * 2016-05-27 2016-10-26 上海菜牛光电科技有限公司 Spatial light modulator
CN107301458B (en) * 2017-05-31 2020-08-11 重庆理工大学 Phase optimization method based on intensity transmission equation
EP3686651B1 (en) 2017-08-02 2021-10-20 Envisics Ltd. Display device
GB2567408B (en) 2017-08-02 2020-12-02 Dualitas Ltd Holographic projector
GB2565834B (en) 2017-08-25 2020-05-20 Dualitas Ltd Display system
GB2568021B (en) 2017-09-08 2021-12-01 Dualitas Ltd Holographic projector
GB2573787B (en) 2018-05-17 2022-02-23 Envisics Ltd Image projector
GB2569206B (en) 2018-05-25 2019-12-04 Dualitas Ltd A method of displaying a hologram on a display device comprising pixels
GB2574823B (en) 2018-06-18 2021-03-17 Dualitas Ltd A holographic projector and method
GB2575651B (en) 2018-07-17 2020-12-16 Envisics Ltd Image projector
GB2569208B (en) 2018-07-19 2019-12-04 Envisics Ltd A head-up display
JP7106682B2 (en) 2018-08-23 2022-07-26 デュアリタス リミテッド Hologram calculation method
GB2576738B (en) 2018-08-29 2020-08-19 Envisics Ltd Head-up display
GB2580012A (en) 2018-09-28 2020-07-15 Envisics Ltd Head-up display
GB2578785C (en) 2018-11-09 2023-08-09 Dualitas Ltd Pixel mapping onto a display device for holographic projection
GB2580298B (en) 2018-11-12 2021-08-11 Dualitas Ltd A spatial light modulator for holographic projection
GB2579234B (en) 2018-11-27 2023-07-19 Dualitas Ltd Hologram calculation
GB2580696B (en) 2019-01-25 2022-04-27 Dualitas Ltd A method for a holographic projector
GB2580441B (en) 2019-03-14 2022-03-16 Dualitas Ltd Laser modulation
GB2582370B (en) 2019-03-22 2022-11-02 Dualitas Ltd Holographic projector
GB2582965B (en) 2019-04-11 2021-09-15 Dualitas Ltd A diffuser assembly
GB2586511B (en) 2019-08-23 2021-12-01 Dualitas Ltd Holographic projector
GB2586512B (en) 2019-08-23 2021-12-08 Dualitas Ltd Holographic projection
GB2578523B (en) 2019-09-25 2021-08-11 Dualitas Ltd Holographic projection
GB2587400B (en) 2019-09-27 2022-02-16 Dualitas Ltd Hologram display using a liquid crystal display device
GB2593500B (en) 2020-03-25 2022-05-18 Dualitas Ltd Projection
GB2618354A (en) 2022-05-05 2023-11-08 Envisics Ltd Head-up display
GB202400697D0 (en) 2024-01-18 2024-03-06 Envisics Ltd Colour multiplexing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2584490B2 (en) * 1988-06-13 1997-02-26 三菱電機株式会社 Matrix type liquid crystal display
US7255448B2 (en) * 2004-10-20 2007-08-14 Hewlett-Packard Development Company, L.P. Pixelated color management display
GB2438681B (en) * 2006-06-02 2010-10-20 Light Blue Optics Ltd Methods and apparatus for displaying colour images using holograms

Also Published As

Publication number Publication date
GB2496108B (en) 2015-03-04
GB2496108A (en) 2013-05-08

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