CA2057154A1 - Light box - Google Patents

Light box

Info

Publication number
CA2057154A1
CA2057154A1 CA002057154A CA2057154A CA2057154A1 CA 2057154 A1 CA2057154 A1 CA 2057154A1 CA 002057154 A CA002057154 A CA 002057154A CA 2057154 A CA2057154 A CA 2057154A CA 2057154 A1 CA2057154 A1 CA 2057154A1
Authority
CA
Canada
Prior art keywords
light
reflector
optical film
light source
light box
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.)
Abandoned
Application number
CA002057154A
Other languages
English (en)
French (fr)
Inventor
Adrian Simmons
Alberto De La Cruz Garcia
Roberto Casalone
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
Application filed by Individual filed Critical Individual
Publication of CA2057154A1 publication Critical patent/CA2057154A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0422—Reflectors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G09F2013/145—Arrangements of reflectors therein curved reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA002057154A 1990-12-08 1991-12-06 Light box Abandoned CA2057154A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4039291.0 1990-12-08
DE4039291A DE4039291A1 (de) 1990-12-08 1990-12-08 Leuchtbox

Publications (1)

Publication Number Publication Date
CA2057154A1 true CA2057154A1 (en) 1992-06-09

Family

ID=6419935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057154A Abandoned CA2057154A1 (en) 1990-12-08 1991-12-06 Light box

Country Status (5)

Country Link
US (1) US5224770A (en:Method)
EP (1) EP0490279A3 (en:Method)
JP (2) JPH0496912U (en:Method)
CA (1) CA2057154A1 (en:Method)
DE (1) DE4039291A1 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423666A (zh) * 2012-04-10 2013-12-04 克利公司 灯具

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WO1995002785A1 (en) * 1993-07-15 1995-01-26 Honeywell Inc. Backlight apparatus with increased reflectance
JPH0792577A (ja) * 1993-09-21 1995-04-07 Mita Ind Co Ltd 光学系用導電体
DE4416360A1 (de) * 1994-05-09 1995-11-16 Egbert E Cohausz Elektrisches Anzeigeelement
US5481637A (en) * 1994-11-02 1996-01-02 The University Of British Columbia Hollow light guide for diffuse light
DE19520822C1 (de) * 1995-05-30 1996-09-05 Aeg Schienenfahrzeuge Linien-, Ziel- oder Haltestellenanzeige
WO1997001726A1 (en) * 1995-06-26 1997-01-16 Minnesota Mining And Manufacturing Company Backlight system with multilayer optical film reflector
US6080467A (en) * 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
DE29519708U1 (de) * 1995-12-12 1997-04-10 Zumtobel Licht Gmbh, Dornbirn Leuchte mit wenigstens einem langgestreckten Leuchtmittel
ES2114802B1 (es) * 1996-01-22 1999-02-16 Juan Roura Y Cia S A Perfeccionamientos en los dispositivos de iluminacion rotulos y similares.
GB2310525A (en) * 1996-02-24 1997-08-27 Ronnie Revell Illuminated display device
US6582103B1 (en) 1996-12-12 2003-06-24 Teledyne Lighting And Display Products, Inc. Lighting apparatus
US6031958A (en) 1997-05-21 2000-02-29 Mcgaffigan; Thomas H. Optical light pipes with laser light appearance
AU7975798A (en) * 1997-06-19 1999-01-04 Hidekatsu Takahashi Apparatus for neon light display
US5976686A (en) * 1997-10-24 1999-11-02 3M Innovative Properties Company Diffuse reflective articles
US6497946B1 (en) * 1997-10-24 2002-12-24 3M Innovative Properties Company Diffuse reflective articles
DE29903298U1 (de) 1999-02-24 1999-05-12 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg Leuchte
US20040005451A1 (en) * 1999-08-03 2004-01-08 Minnesota Mining And Manufacturing Company Diffuse reflective articles
JP2001156393A (ja) 1999-11-29 2001-06-08 Ando Electric Co Ltd Ｖ溝格子ミラー及びこれを用いた外部共振器型波長可変光源
US6893135B2 (en) 2000-03-16 2005-05-17 3M Innovative Properties Company Light guides suitable for illuminated displays
JP2002244127A (ja) * 2001-01-31 2002-08-28 Internatl Business Mach Corp <Ibm> 液晶表示装置、サイドライト型バックライト・ユニット、ランプ・リフレクタおよび反射部材
RU2185644C1 (ru) * 2001-06-08 2002-07-20 Социленков Александр Александрович Световозвращатель
JP3939684B2 (ja) * 2003-07-25 2007-07-04 エルジー．フィリップス エルシーデー カンパニー，リミテッド 液晶表示装置のバックライト装置及びこれに使用される反射手段
JP4133663B2 (ja) * 2003-07-30 2008-08-13 三菱電機株式会社 面状光源装置および該装置を備えた表示装置
USD498016S1 (en) 2003-11-26 2004-11-02 Acuity Brands, Inc. Portion of a combined lighting fixture and hanger
USD496745S1 (en) 2003-11-26 2004-09-28 Acuity Brands, Inc. Portion of a combined lighting fixture and hanger
US20050222801A1 (en) * 2004-04-06 2005-10-06 Thomas Wulff System and method for monitoring a mobile computing product/arrangement
EP1586813A1 (en) 2004-04-16 2005-10-19 3M Innovative Properties Company Light box
GB0419391D0 (en) 2004-09-01 2004-10-06 3M Innovative Properties Co Luminaire comprising a light box
GB0427607D0 (en) * 2004-12-16 2005-01-19 Microsharp Corp Ltd Structured optical film
EP1866154A1 (en) * 2005-03-24 2007-12-19 3M Innovative Properties Company Metallized films and articles containing the same
EP1866153A1 (en) * 2005-03-24 2007-12-19 3M Innovative Properties Company Corrosion resistant metallized films and methods of making the same
US20060291241A1 (en) * 2005-06-22 2006-12-28 Carmanah Technologies Corp. Light emitting diode illuminated display panel assembly
US20060289054A1 (en) * 2005-06-22 2006-12-28 Carmanah Technologies Corp. Solar powered light emitting diode illuminated display panel assembly
US7180779B2 (en) * 2005-07-11 2007-02-20 Atmel Corporation Memory architecture with enhanced over-erase tolerant control gate scheme
US8594742B2 (en) * 2006-06-21 2013-11-26 Symbol Technologies, Inc. System and method for monitoring a mobile device
JP2008041328A (ja) * 2006-08-02 2008-02-21 Nippon Zeon Co Ltd 直下型バックライト装置
US20100129779A1 (en) * 2008-11-22 2010-05-27 Pomerleau Kevin L Image Capture and Tracing System and Method
CN102606914A (zh) * 2008-11-28 2012-07-25 富士迈半导体精密工业（上海）有限公司 室内灯具
US8568002B2 (en) * 2010-03-05 2013-10-29 Southpac Trust International Inc., Trustee of the LDH Trust Light diffusion and condensing fixture
DE102012012649A1 (de) * 2012-06-26 2014-01-16 Bartenbach Holding Gmbh Beleuchtungsvorrichtung
CN107845349B (zh) * 2017-12-21 2024-10-08 南宁一棵树标识制作有限公司 一种铝塑板镶嵌亚克力发光字体结构
USD1009348S1 (en) * 2019-12-20 2023-12-26 Abl Ip Holding Llc Light fixture

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US2175067A (en) * 1938-04-23 1939-10-03 Holophane Co Inc Prismatic reflector
US2290282A (en) * 1939-10-27 1942-07-21 Herr Max Piano lamp
US2348617A (en) * 1941-02-19 1944-05-09 Sun Kraft Inc Ultraviolet ray generator
US3944807A (en) * 1975-01-20 1976-03-16 White-Westinghouse Corporation Infrared lamp holder
SE7514564L (sv) * 1975-11-14 1977-05-15 Colorlux As Lysskiltkasse
US4154219A (en) * 1977-03-11 1979-05-15 E-Systems, Inc. Prismatic solar reflector apparatus and method of solar tracking
US4120565A (en) * 1977-06-16 1978-10-17 The United States Of America As Represented By The United States Department Of Energy Prisms with total internal reflection as solar reflectors
US4233651A (en) * 1978-03-30 1980-11-11 Keene Corporation Work area lighting system
US4260220A (en) * 1979-06-15 1981-04-07 Canadian Patents And Development Limited Prism light guide having surfaces which are in octature
US4615579A (en) * 1983-08-29 1986-10-07 Canadian Patents & Development Ltd. Prism light guide luminaire
CA1279783C (en) * 1985-11-21 1991-02-05 Minnesota Mining And Manufacturing Company Totally internally reflecting thin, flexible film
US4805984A (en) * 1985-11-21 1989-02-21 Minnesota Mining And Manufacturing Company Totally internally reflecting light conduit
US4850665A (en) * 1987-02-20 1989-07-25 Minnesota Mining And Manufacturing Company Method and apparatus for controlled emission of light from prism light guide
DE3806421A1 (de) * 1987-03-04 1988-11-24 Citizen Watch Co Ltd Beleuchtungsvorrichtung fuer ein fluessigkristallanzeigegeraet
US4874228A (en) * 1987-03-24 1989-10-17 Minnesota Mining And Manufacturing Company Back-lit display
US4834495A (en) * 1987-05-08 1989-05-30 Minnesota Mining And Manufacturing Company Collapsible light pipe
US4791540A (en) * 1987-05-26 1988-12-13 Minnesota Mining And Manufacturing Company Light fixture providing normalized output
JPH024906A (ja) * 1988-06-22 1990-01-09 Takeshi Masumoto フレーク状急冷凝固金属粉末の製造法
US5054885A (en) * 1988-10-11 1991-10-08 Minnesota Mining And Manfuacturing Company Light fixture including a partially collimated beam of light and reflective prisms having peaks lying on a curved surface
US5034864A (en) * 1989-04-25 1991-07-23 Mitsubishi Rayon Co., Ltd. Planar light-source device and illumination apparatus using the same
US5006966A (en) * 1989-08-30 1991-04-09 Transmatic, Inc. Transit vehicle lighting fixture
US5029060A (en) * 1990-07-17 1991-07-02 Minnesota Mining And Manufacturing Company Uniform intensity profile catadioptric lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423666A (zh) * 2012-04-10 2013-12-04 克利公司 灯具

Also Published As

Publication number Publication date
US5224770A (en) 1993-07-06
JPH0496912U (en:Method) 1992-08-21
JPH0496775U (en:Method) 1992-08-21
DE4039291A1 (de) 1992-06-11
EP0490279A2 (en) 1992-06-17
EP0490279A3 (en) 1992-11-25

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Legal Events

Date Code Title Description
FZDE Discontinued