CA2280085C - Dispositif d'eclairage - Google Patents
Dispositif d'eclairage Download PDFInfo
- Publication number
- CA2280085C CA2280085C CA002280085A CA2280085A CA2280085C CA 2280085 C CA2280085 C CA 2280085C CA 002280085 A CA002280085 A CA 002280085A CA 2280085 A CA2280085 A CA 2280085A CA 2280085 C CA2280085 C CA 2280085C
- Authority
- CA
- Canada
- Prior art keywords
- layer
- light
- polarization
- angle
- redirecting
- 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.)
- Expired - Fee Related
Links
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Classifications
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- 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
- 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
-
- 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
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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
L'invention concerne un dispositif optique permettant de capter une lumière et d'émettre ou de concentrer cette lumière. Une couche possède un indice optique de réfraction n1, et des surfaces supérieure, inférieure et latérale définissant un angle d'inclinaison phi . Une surface arrière s'étend de part et d'autre des surfaces supérieure, inférieure et latérale. Une première couche est couplée à la surface inférieure de la couche et possède un indice de réfraction n2. L'indice n2 de la première couche cause la sortie préférentielle dans la première couche, d'une lumière entrée par la surface arrière de la couche. Une deuxième couche est couplée à la surface inférieure de la première couche et entraîne sélectivement une sortie de lumière dans le milieu ambiant. Des couches supplémentaires, telles qu'une couche de polarisation de la lumière, une couche de conversion de polarisation et une couche de diffusion à l'arrière de l'écran à cristaux liquides peuvent être utilisées pour faire un usage préférentiel de la lumière polarisée d'une lumière ayant traversée la couche de l'écran à cristaux liquides afin d'améliorer l'observation de la lumière émise.
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 (fr) | 1997-01-13 | 1998-01-13 | Dispositif d'eclairage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2280085A1 CA2280085A1 (fr) | 1998-07-30 |
| CA2280085C true CA2280085C (fr) | 2006-06-06 |
Family
ID=25128521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002280085A Expired - Fee Related CA2280085C (fr) | 1997-01-13 | 1998-01-13 | Dispositif d'eclairage |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0953130A4 (fr) |
| JP (2) | JP4163259B2 (fr) |
| KR (1) | KR100573634B1 (fr) |
| AU (1) | AU6023698A (fr) |
| CA (1) | CA2280085C (fr) |
| WO (1) | WO1998033006A2 (fr) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6356389B1 (en) | 1999-11-12 | 2002-03-12 | Reflexite Corporation | Subwavelength optical microstructure light collimating films |
| US6570710B1 (en) * | 1999-11-12 | 2003-05-27 | Reflexite Corporation | Subwavelength optical microstructure light collimating films |
| KR20020009202A (ko) * | 2000-07-25 | 2002-02-01 | 김순택 | 반투과형 액정 표시장치 |
| KR100867066B1 (ko) * | 2000-09-25 | 2008-11-04 | 미츠비시 레이온 가부시키가이샤 | 면 광원 장치 |
| US6663262B2 (en) | 2001-09-10 | 2003-12-16 | 3M Innovative Properties Company | Backlighting transmissive displays |
| EP1451502B1 (fr) * | 2001-12-05 | 2010-05-26 | Rambus International Ltd | Dispositifs transflectifs, systemes et afficheurs a dispositifs transflectifs, et procedes de fabrication de dispositifs transflectifs |
| KR100798315B1 (ko) * | 2001-12-29 | 2008-01-28 | 엘지.필립스 엘시디 주식회사 | 액정 표시장치의 기판 구조 및 그 제조방법 |
| WO2003069222A1 (fr) * | 2002-01-18 | 2003-08-21 | Mitsubishi Rayon Co., Ltd. | Dispositif d'eclairage |
| 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 (ja) * | 2002-11-28 | 2004-06-24 | Alps Electric Co Ltd | 反射防止構造および照明装置と液晶表示装置並びに反射防止膜成型用金型 |
| 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 (de) * | 2005-01-31 | 2006-08-10 | Osram Opto Semiconductors Gmbh | Optisches Element und Verfahren zu dessen Herstellung |
| JP4889239B2 (ja) * | 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 | バックライトユニットおよび液晶表示装置 |
| CN101013218B (zh) * | 2005-10-14 | 2010-12-15 | 大日本印刷株式会社 | 光控制片和面光源装置 |
| US7586082B2 (en) * | 2007-01-24 | 2009-09-08 | Xerox Corporation | Optical element for a document illuminator |
| JP5133081B2 (ja) * | 2007-02-14 | 2013-01-30 | パナソニック株式会社 | 面状照明装置及び液晶表示装置 |
| 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 (ja) * | 2011-06-03 | 2015-10-28 | 住友ベークライト株式会社 | 光導波路、光電気混載基板および電子機器 |
| US10054732B2 (en) * | 2013-02-22 | 2018-08-21 | Reald Spark, Llc | Directional backlight having a rear reflector |
| WO2013104781A1 (fr) * | 2012-01-11 | 2013-07-18 | Seereal Technologies S.A. | Dispositif optique permettant d'éclairer une matrice de pixels et/ou un modulateur de lumière spatial commandable pour un affichage |
| JP5984591B2 (ja) | 2012-09-05 | 2016-09-06 | オリンパス株式会社 | 表示方法及び表示装置 |
| JP6024348B2 (ja) * | 2012-09-28 | 2016-11-16 | 株式会社Ｊｖｃケンウッド | 投影装置 |
| US10036517B2 (en) | 2013-05-16 | 2018-07-31 | 3M Innovative Properties Company | Lightguide as luminaire |
| DE102014003298A1 (de) * | 2014-03-07 | 2015-09-10 | Sioptica Gmbh | Verfahren und Anordnung zur wahlweisen Einschränkung der Erkennbarkeit von Bildern |
| KR20180030927A (ko) * | 2015-08-13 | 2018-03-26 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 방향전환 필름과 확산기를 포함하는 디스플레이 |
| KR102749620B1 (ko) | 2016-10-18 | 2025-01-06 | 삼성디스플레이 주식회사 | 표시 장치 |
| KR20190032797A (ko) * | 2017-09-20 | 2019-03-28 | 엘지이노텍 주식회사 | 조명 장치 |
| EP3837579B1 (fr) * | 2018-08-13 | 2024-05-22 | LEIA Inc. | Collimateur de réseau, système de rétroéclairage et procédé utilisant une source de lumière de recyclage de lumière |
| EP4459337A1 (fr) * | 2022-05-03 | 2024-11-06 | Marcello Gasparini | Dispositif d'éclairage avec lumière réfléchie et/ou réfractée à travers des filtres polarisants |
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| 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 |
| US5387953A (en) * | 1990-12-27 | 1995-02-07 | Canon Kabushiki Kaisha | Polarization illumination device and projector having the same |
| US5303322A (en) * | 1992-03-23 | 1994-04-12 | Nioptics Corporation | Tapered multilayer luminaire devices |
| JP3384867B2 (ja) * | 1994-03-31 | 2003-03-10 | 株式会社エンプラス | 偏光変換手段を備えた偏光化機能付面光源装置 |
| WO1995027919A2 (fr) * | 1994-04-06 | 1995-10-19 | Minnesota Mining And Manufacturing Company | Sources de lumiere polarisee |
| JP3694024B2 (ja) * | 1994-04-11 | 2005-09-14 | ミネソタ・マイニング・アンド・マニュファクチャリング・カンパニー | テーパ付多層照明装置 |
| JP3219943B2 (ja) * | 1994-09-16 | 2001-10-15 | 株式会社東芝 | 平面直視型表示装置 |
| JPH0894851A (ja) * | 1994-09-22 | 1996-04-12 | Nippon Chemitec Kk | 導光板とその面型照明体 |
-
1998
- 1998-01-13 CA CA002280085A patent/CA2280085C/fr not_active Expired - Fee Related
- 1998-01-13 WO PCT/US1998/000632 patent/WO1998033006A2/fr not_active Ceased
- 1998-01-13 EP EP98903472A patent/EP0953130A4/fr not_active Ceased
- 1998-01-13 KR KR1019997006337A patent/KR100573634B1/ko not_active Expired - Lifetime
- 1998-01-13 JP JP53202298A patent/JP4163259B2/ja not_active Expired - Lifetime
- 1998-01-13 AU AU60236/98A patent/AU6023698A/en not_active Abandoned
-
2008
- 2008-05-07 JP JP2008121710A patent/JP4642873B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU6023698A (en) | 1998-08-18 |
| EP0953130A2 (fr) | 1999-11-03 |
| JP4163259B2 (ja) | 2008-10-08 |
| WO1998033006A3 (fr) | 1998-10-01 |
| JP2008270222A (ja) | 2008-11-06 |
| EP0953130A4 (fr) | 2000-01-05 |
| JP4642873B2 (ja) | 2011-03-02 |
| KR100573634B1 (ko) | 2006-04-26 |
| JP2001508590A (ja) | 2001-06-26 |
| WO1998033006A2 (fr) | 1998-07-30 |
| KR20000070114A (ko) | 2000-11-25 |
| CA2280085A1 (fr) | 1998-07-30 |
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |