GB2576552B - Light modulator - Google Patents

Light modulator Download PDF

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Publication number
GB2576552B
GB2576552B GB1813767.9A GB201813767A GB2576552B GB 2576552 B GB2576552 B GB 2576552B GB 201813767 A GB201813767 A GB 201813767A GB 2576552 B GB2576552 B GB 2576552B
Authority
GB
United Kingdom
Prior art keywords
light modulator
modulator
light
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.)
Active
Application number
GB1813767.9A
Other versions
GB2576552A (en
GB201813767D0 (en
Inventor
Collings Neil
Christmas Jamieson
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.)
Dualitas Ltd
Original Assignee
Dualitas 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 Dualitas Ltd filed Critical Dualitas Ltd
Priority to GB1813767.9A priority Critical patent/GB2576552B/en
Publication of GB201813767D0 publication Critical patent/GB201813767D0/en
Priority to CN201980037350.6A priority patent/CN112236725B/en
Priority to PCT/EP2019/072509 priority patent/WO2020039038A1/en
Priority to KR1020207033638A priority patent/KR102499218B1/en
Priority to JP2020566799A priority patent/JP7106682B2/en
Priority to US15/734,427 priority patent/US11454929B2/en
Priority to EP19761791.3A priority patent/EP3776093B1/en
Publication of GB2576552A publication Critical patent/GB2576552A/en
Application granted granted Critical
Publication of GB2576552B publication Critical patent/GB2576552B/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
    • G03H1/22—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
    • G03H1/2294—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
    • 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
    • G03H1/0443—Digital holography, i.e. recording holograms with digital recording means
    • G03H2001/0454—Arrangement for recovering hologram complex amplitude
    • 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
    • G03H2001/2218—Plane screen being perpendicular to optical axis
    • 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
    • G03H2225/33—Complex 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
    • G03H2225/33—Complex modulation
    • G03H2225/34—Amplitude and phase coupled 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
    • G03H2225/60—Multiple SLMs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/10—Composition
    • G03H2270/11—Crystal or glass

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
GB1813767.9A 2018-08-23 2018-08-23 Light modulator Active GB2576552B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1813767.9A GB2576552B (en) 2018-08-23 2018-08-23 Light modulator
CN201980037350.6A CN112236725B (en) 2018-08-23 2019-08-22 Method for calculating hologram
PCT/EP2019/072509 WO2020039038A1 (en) 2018-08-23 2019-08-22 Method of hologram calculation
KR1020207033638A KR102499218B1 (en) 2018-08-23 2019-08-22 Hologram Calculation Method
JP2020566799A JP7106682B2 (en) 2018-08-23 2019-08-22 Hologram calculation method
US15/734,427 US11454929B2 (en) 2018-08-23 2019-08-22 Method of hologram calculation
EP19761791.3A EP3776093B1 (en) 2018-08-23 2019-08-22 Method of hologram calculation, hologram engine and holographic projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1813767.9A GB2576552B (en) 2018-08-23 2018-08-23 Light modulator

Publications (3)

Publication Number Publication Date
GB201813767D0 GB201813767D0 (en) 2018-10-10
GB2576552A GB2576552A (en) 2020-02-26
GB2576552B true GB2576552B (en) 2021-08-18

Family

ID=63715068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1813767.9A Active GB2576552B (en) 2018-08-23 2018-08-23 Light modulator

Country Status (1)

Country Link
GB (1) GB2576552B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220150762A (en) * 2021-05-04 2022-11-11 삼성전자주식회사 CGH generator and display device including the same
GB2616305B (en) 2022-03-04 2025-02-05 Envisics Ltd Hologram calculation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014778A (en) * 2007-06-29 2009-01-22 Nippon Hoso Kyokai <Nhk> Transmission type spatial light modulation element and optical device equipped with the same
US20100195178A1 (en) * 2007-06-13 2010-08-05 Seereal Technologies S.A. Device for Light Modulation
US20120092750A1 (en) * 2009-06-23 2012-04-19 Seereal Technologies S.A. Lighting device for a direct viewing display
US20130021545A1 (en) * 2011-07-21 2013-01-24 Samsung Electronics Co., Ltd. Spatial light modulator and optical apparatus employing the same
US20150323817A1 (en) * 2014-05-12 2015-11-12 Electronics And Telecommunications Research Institute Complex spatial light modulator and method of fabricating the same
WO2018045816A1 (en) * 2016-09-08 2018-03-15 京东方科技集团股份有限公司 Holographic display device and display method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100195178A1 (en) * 2007-06-13 2010-08-05 Seereal Technologies S.A. Device for Light Modulation
JP2009014778A (en) * 2007-06-29 2009-01-22 Nippon Hoso Kyokai <Nhk> Transmission type spatial light modulation element and optical device equipped with the same
US20120092750A1 (en) * 2009-06-23 2012-04-19 Seereal Technologies S.A. Lighting device for a direct viewing display
US20130021545A1 (en) * 2011-07-21 2013-01-24 Samsung Electronics Co., Ltd. Spatial light modulator and optical apparatus employing the same
US20150323817A1 (en) * 2014-05-12 2015-11-12 Electronics And Telecommunications Research Institute Complex spatial light modulator and method of fabricating the same
WO2018045816A1 (en) * 2016-09-08 2018-03-15 京东方科技集团股份有限公司 Holographic display device and display method thereof

Also Published As

Publication number Publication date
GB2576552A (en) 2020-02-26
GB201813767D0 (en) 2018-10-10

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