GB201207824D0 - Luminaire - Google Patents

Luminaire

Info

Publication number
GB201207824D0
GB201207824D0 GBGB1207824.2A GB201207824A GB201207824D0 GB 201207824 D0 GB201207824 D0 GB 201207824D0 GB 201207824 A GB201207824 A GB 201207824A GB 201207824 D0 GB201207824 D0 GB 201207824D0
Authority
GB
United Kingdom
Prior art keywords
edge
waveguide
illumination
sheet
holographic element
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.)
Withdrawn
Application number
GBGB1207824.2A
Other versions
GB2501754A (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.)
De Montfort University
Harman Technology Ltd
Original Assignee
De Montfort University
Harman Technology 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 De Montfort University, Harman Technology Ltd filed Critical De Montfort University
Priority to GB1207824.2A priority Critical patent/GB2501754A/en
Publication of GB201207824D0 publication Critical patent/GB201207824D0/en
Publication of GB2501754A publication Critical patent/GB2501754A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • 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
    • G03H1/0408—Total internal reflection [TIR] holograms, e.g. edge lit or substrate mode 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
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/0402—Recording geometries or arrangements
    • G03H2001/0439—Recording geometries or arrangements for recording Holographic Optical Element [HOE]
    • 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
    • G03H2001/2223—Particular relationship between light source, hologram and observer
    • G03H2001/2226—Edge lit holograms

Abstract

An edge lit lighting device is formed from a waveguide or sheet of transparent optical support 1 with one or more means of illumination 2 through the edge of the sheet 1, so the waveguide 1 is edge lit, and a multi layered hologram 3a,3b which is able to diffract one or more frequencies of illumination. The holographic element 3a, 3b may be reflective or transmissive. The holographic element 3a, 3b may be a volume hologram formed using silver halide. The edge of the waveguide may be chamfered or angled (fig 3),
GB1207824.2A 2012-05-03 2012-05-03 Luminaire Withdrawn GB2501754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1207824.2A GB2501754A (en) 2012-05-03 2012-05-03 Luminaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1207824.2A GB2501754A (en) 2012-05-03 2012-05-03 Luminaire

Publications (2)

Publication Number Publication Date
GB201207824D0 true GB201207824D0 (en) 2012-06-13
GB2501754A GB2501754A (en) 2013-11-06

Family

ID=46330792

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1207824.2A Withdrawn GB2501754A (en) 2012-05-03 2012-05-03 Luminaire

Country Status (1)

Country Link
GB (1) GB2501754A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10048647B2 (en) 2014-03-27 2018-08-14 Microsoft Technology Licensing, Llc Optical waveguide including spatially-varying volume hologram
GB201413156D0 (en) 2014-07-24 2014-09-10 Bowater Holographic Res Ltd And Harman Technology Ltd Holographic windows
US10210844B2 (en) 2015-06-29 2019-02-19 Microsoft Technology Licensing, Llc Holographic near-eye display
US10254542B2 (en) 2016-11-01 2019-04-09 Microsoft Technology Licensing, Llc Holographic projector for a waveguide display
KR20180053030A (en) * 2016-11-11 2018-05-21 삼성전자주식회사 Backlight unit, holographic display having the same and method of manufacturing holographic optical device
US11022939B2 (en) 2017-01-03 2021-06-01 Microsoft Technology Licensing, Llc Reduced bandwidth holographic near-eye display
US10712567B2 (en) 2017-06-15 2020-07-14 Microsoft Technology Licensing, Llc Holographic display system
DE102021200543A1 (en) 2021-01-21 2022-07-21 Carl Zeiss Jena Gmbh Miniaturized holographic display

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050259302A9 (en) * 1987-09-11 2005-11-24 Metz Michael H Holographic light panels and flat panel display systems and method and apparatus for making same
GB9121159D0 (en) * 1991-10-04 1991-11-13 Marconi Gec Ltd Colour display system
AU1338101A (en) * 1999-10-29 2001-05-14 Digilens Inc. Display system utilizing ambient light and a dedicated light source
KR100513718B1 (en) * 2002-06-20 2005-09-07 삼성전자주식회사 Illumination apparatus for planar display device
KR100682907B1 (en) * 2004-12-14 2007-02-15 삼성전자주식회사 Illumination apparatus for a display device using light guide plate

Also Published As

Publication number Publication date
GB2501754A (en) 2013-11-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)