CA2280085A1 - Luminaire device - Google Patents

Luminaire device Download PDF

Info

Publication number
CA2280085A1
CA2280085A1 CA002280085A CA2280085A CA2280085A1 CA 2280085 A1 CA2280085 A1 CA 2280085A1 CA 002280085 A CA002280085 A CA 002280085A CA 2280085 A CA2280085 A CA 2280085A CA 2280085 A1 CA2280085 A1 CA 2280085A1
Authority
CA
Canada
Prior art keywords
layer
light
output
refraction
coupled
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
CA002280085A
Other languages
French (fr)
Other versions
CA2280085C (en
Inventor
Roland Winston
Robert L. Holman
Benjamin A. Jacobson
Robert M. Emmons
Philip Gleckman
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.)
3M Co
Original Assignee
Individual
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
Priority claimed from US08/783,212 external-priority patent/US6002829A/en
Application filed by Individual filed Critical Individual
Publication of CA2280085A1 publication Critical patent/CA2280085A1/en
Application granted granted Critical
Publication of CA2280085C publication Critical patent/CA2280085C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • 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
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

An optical device (10) for collecting light and selectively outputting or concentrating the light (24). A layer (12) has an optical index of refraction n1, and top (14), bottom (16) and side (18) surfaces defining an angle of inclination .phi.. A back surface (20) spans the top (14), bottom (16) and side (18) surface. A first layer (28) is coupled to the bottom surface (16) of the layer (12) and has an index of refraction n2, causes light input through the back surface (20) of the layer (12) to be preferentially output into the first layer (28). A second layer (30) is coupled to the bottom (16) of the first layer (28) and selectively causes output of light into ambient. Additional layers, such as a light polarization layer, a polarization converting layer and a post LCD diffuser layer can be used to make preferential use of polarized light of diffuse light having passed through the LCD layer to enhance viewing of the output light.
CA002280085A 1997-01-13 1998-01-13 Luminaire device Expired - Fee Related CA2280085C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/783,212 US6002829A (en) 1992-03-23 1997-01-13 Luminaire device
US08/783,212 1997-01-13
PCT/US1998/000632 WO1998033006A2 (en) 1997-01-13 1998-01-13 Luminaire device

Publications (2)

Publication Number Publication Date
CA2280085A1 true CA2280085A1 (en) 1998-07-30
CA2280085C CA2280085C (en) 2006-06-06

Family

ID=25128521

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002280085A Expired - Fee Related CA2280085C (en) 1997-01-13 1998-01-13 Luminaire device

Country Status (6)

Country Link
EP (1) EP0953130A4 (en)
JP (2) JP4163259B2 (en)
KR (1) KR100573634B1 (en)
AU (1) AU6023698A (en)
CA (1) CA2280085C (en)
WO (1) WO1998033006A2 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6570710B1 (en) 1999-11-12 2003-05-27 Reflexite Corporation Subwavelength optical microstructure light collimating films
US6356389B1 (en) 1999-11-12 2002-03-12 Reflexite Corporation Subwavelength optical microstructure light collimating films
KR20020009202A (en) * 2000-07-25 2002-02-01 김순택 Transflective type liquid crystal display
WO2002025167A1 (en) * 2000-09-25 2002-03-28 Mitsubishi Rayon Co., Ltd. Light source device
US6663262B2 (en) 2001-09-10 2003-12-16 3M Innovative Properties Company Backlighting transmissive displays
KR100989695B1 (en) * 2001-12-05 2010-10-26 솔리드 스테이트 옵토 리미티드 Transreflectors, transreflector systems and displays and methods of making transreflectors
KR100798315B1 (en) * 2001-12-29 2008-01-28 엘지.필립스 엘시디 주식회사 Substrate structure of liquid crystal display and fabricating method thereof
WO2003069222A1 (en) * 2002-01-18 2003-08-21 Mitsubishi Rayon Co., Ltd. Light source device
US7859759B2 (en) 2002-05-20 2010-12-28 Sabic Innovative Plastics Ip B.V. Film, backlight displays, and methods for making the same
US6908202B2 (en) 2002-10-03 2005-06-21 General Electric Company Bulk diffuser for flat panel display
JP2004177806A (en) * 2002-11-28 2004-06-24 Alps Electric Co Ltd Anti-reflection structure, lighting device, liquid crystal display device, and anti-reflection coating molding die
US6811274B2 (en) 2002-12-04 2004-11-02 General Electric Company Polarization sensitive optical substrate
US7125131B2 (en) 2002-12-06 2006-10-24 General Electric Company Brightness enhancement film with improved view angle
US6952627B2 (en) 2002-12-18 2005-10-04 General Electric Company Method and apparatus for fabricating light management substrates
DE102005006635A1 (en) * 2005-01-31 2006-08-10 Osram Opto Semiconductors Gmbh Optical element and method for its production
JP4889239B2 (en) * 2005-05-18 2012-03-07 チェイル インダストリーズ インコーポレイテッド Backlight unit and liquid crystal display device
CN101013218B (en) * 2005-10-14 2010-12-15 大日本印刷株式会社 Light-control sheet and surface illuminant unit
US7586082B2 (en) * 2007-01-24 2009-09-08 Xerox Corporation Optical element for a document illuminator
JP5133081B2 (en) * 2007-02-14 2013-01-30 パナソニック株式会社 Surface illumination device and liquid crystal display device
US8698985B2 (en) 2009-11-30 2014-04-15 Samsung Corning Precision Materials Co., Ltd. Optical film for reducing color shift and LCD device having the same
US8735791B2 (en) 2010-07-13 2014-05-27 Svv Technology Innovations, Inc. Light harvesting system employing microstructures for efficient light trapping
JP5799592B2 (en) * 2011-06-03 2015-10-28 住友ベークライト株式会社 Optical waveguide, opto-electric hybrid board, and electronic equipment
WO2013104781A1 (en) * 2012-01-11 2013-07-18 Seereal Technologies S.A. Optical apparatus for illuminating a pixel matrix and/or a controllable spatial light modulator for a display
JP5984591B2 (en) 2012-09-05 2016-09-06 オリンパス株式会社 Display method and display device
JP6024348B2 (en) * 2012-09-28 2016-11-16 株式会社Ｊｖｃケンウッド Projection device
KR102617760B1 (en) * 2013-02-22 2023-12-27 리얼디 스파크, 엘엘씨 Directional backlight
US10036517B2 (en) 2013-05-16 2018-07-31 3M Innovative Properties Company Lightguide as luminaire
DE102014003298A1 (en) * 2014-03-07 2015-09-10 Sioptica Gmbh Method and arrangement for optionally limiting the recognizability of images
US10948650B2 (en) 2015-08-13 2021-03-16 3M Innovative Properties Company Display including turning film and diffuser
KR20180042892A (en) 2016-10-18 2018-04-27 삼성디스플레이 주식회사 Display apparatus
KR20190032797A (en) 2017-09-20 2019-03-28 엘지이노텍 주식회사 Lighting device
KR102617358B1 (en) * 2018-08-13 2023-12-21 레이아 인코포레이티드 Grating collimator, backlight system light method using optical recirculating light source

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046829A (en) * 1989-05-01 1991-09-10 Motorola, Inc. Liquid crystal display backlighting apparatus having combined optical diffuser and shock dampening properties
US5101325A (en) * 1990-03-20 1992-03-31 General Electric Company Uniform illumination of large, thin surfaces particularly suited for automotive applications
US5050946A (en) * 1990-09-27 1991-09-24 Compaq Computer Corporation Faceted light pipe
US5303322A (en) * 1992-03-23 1994-04-12 Nioptics Corporation Tapered multilayer luminaire devices
JP3384867B2 (en) * 1994-03-31 2003-03-10 株式会社エンプラス Surface light source device with polarization function provided with polarization conversion means
EP0760962B1 (en) * 1994-04-11 2002-10-02 Minnesota Mining And Manufacturing Company Tapered multilayer luminaire device
JP3219943B2 (en) * 1994-09-16 2001-10-15 株式会社東芝 Planar direct-view display device
JPH0894851A (en) * 1994-09-22 1996-04-12 Nippon Chemitec Kk Light transmission plate and surface type illuminating body thereof

Also Published As

Publication number Publication date
AU6023698A (en) 1998-08-18
KR20000070114A (en) 2000-11-25
EP0953130A2 (en) 1999-11-03
KR100573634B1 (en) 2006-04-26
JP2008270222A (en) 2008-11-06
CA2280085C (en) 2006-06-06
EP0953130A4 (en) 2000-01-05
JP4163259B2 (en) 2008-10-08
JP2001508590A (en) 2001-06-26
WO1998033006A3 (en) 1998-10-01
WO1998033006A2 (en) 1998-07-30
JP4642873B2 (en) 2011-03-02

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Legal Events

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EEER Examination request
MKLA Lapsed