DE3872240D1 - Vorrichtung, bestehend aus einer lichtleitplatte. - Google Patents

Vorrichtung, bestehend aus einer lichtleitplatte.

Info

Publication number
DE3872240D1
DE3872240D1 DE8888907632T DE3872240T DE3872240D1 DE 3872240 D1 DE3872240 D1 DE 3872240D1 DE 8888907632 T DE8888907632 T DE 8888907632T DE 3872240 T DE3872240 T DE 3872240T DE 3872240 D1 DE3872240 D1 DE 3872240D1
Authority
DE
Germany
Prior art keywords
light guide
guide plate
intermediate layer
plate
device consisting
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
Application number
DE8888907632T
Other languages
English (en)
Inventor
Heinz-Juergen Fandrich
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.)
FANDRICH HEINZ JUERGEN
Original Assignee
FANDRICH HEINZ JUERGEN
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27434013&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3872240(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE3736804A external-priority patent/DE3736804C1/de
Application filed by FANDRICH HEINZ JUERGEN filed Critical FANDRICH HEINZ JUERGEN
Priority to DE8888907632T priority Critical patent/DE3872240D1/de
Application granted granted Critical
Publication of DE3872240D1 publication Critical patent/DE3872240D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B6/0013—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
    • G02B6/0018—Redirecting means on the surface of the light guide
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • G02B6/0051—Diffusing 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
DE8888907632T 1987-09-09 1988-09-07 Vorrichtung, bestehend aus einer lichtleitplatte. Expired - Fee Related DE3872240D1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888907632T DE3872240D1 (de) 1987-09-09 1988-09-07 Vorrichtung, bestehend aus einer lichtleitplatte.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3730169 1987-09-09
DE3731577 1987-09-19
DE3731676 1987-09-21
DE3736804A DE3736804C1 (en) 1987-09-09 1987-10-27 Device consisting of a light-guiding plate
PCT/DE1988/000562 WO1989002606A1 (en) 1987-09-09 1988-09-07 Device composed of a light guide plate
DE8888907632T DE3872240D1 (de) 1987-09-09 1988-09-07 Vorrichtung, bestehend aus einer lichtleitplatte.

Publications (1)

Publication Number Publication Date
DE3872240D1 true DE3872240D1 (de) 1992-07-23

Family

ID=27434013

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888907632T Expired - Fee Related DE3872240D1 (de) 1987-09-09 1988-09-07 Vorrichtung, bestehend aus einer lichtleitplatte.

Country Status (6)

Country Link
US (1) US5022728A (de)
EP (1) EP0371073B1 (de)
JP (1) JPH03500214A (de)
AT (1) ATE77491T1 (de)
DE (1) DE3872240D1 (de)
WO (1) WO1989002606A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04356015A (ja) * 1991-03-22 1992-12-09 Tosoh Corp バックライト
US5442523A (en) * 1991-08-22 1995-08-15 Tosoh Corporation Backlighting device
CA2088113C (en) * 1992-01-27 1999-03-30 Tomohiro Yokota Light adjusting sheet for a planar lighting device and a planar lighting device and a liquid crystal display using the sheet
US5271077A (en) * 1992-09-09 1993-12-14 Gte Products Corporation Nonimaging reflector for coupling light into a light pipe
JP2630714B2 (ja) * 1992-10-08 1997-07-16 茶谷産業株式会社 面照明装置
ATE248321T1 (de) * 1996-12-04 2003-09-15 Siteco Beleuchtungstech Gmbh Innenraumleuchte
DE19755658A1 (de) * 1997-12-15 1999-06-17 Zumtobel Staff Gmbh Leuchte mit einem scheibenförmigen Lichtleiter
US6447135B1 (en) 1999-10-08 2002-09-10 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
US7046905B1 (en) 1999-10-08 2006-05-16 3M Innovative Properties Company Blacklight with structured surfaces
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
US20030156819A1 (en) * 2002-02-15 2003-08-21 Mark Pruss Optical waveguide
DE10318723A1 (de) * 2003-04-25 2004-11-11 Müller, Gerhard Beleuchtbarer Handlauf
KR100689394B1 (ko) * 2005-06-28 2007-03-02 삼성전자주식회사 휴대 장치용 키패드 어셈블리
US20070243844A1 (en) * 2006-04-12 2007-10-18 Nokia Corporation Flexible optical illumination system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222515A (en) * 1963-01-03 1965-12-07 Sheffield Plastics Inc Room light control
US3491245A (en) * 1967-04-10 1970-01-20 George K C Hardesty Guided light display panel
FR2163511B1 (de) * 1971-12-13 1975-06-20 Eastman Kodak Co
JPS49114434A (de) * 1973-02-12 1974-10-31
US4252416A (en) * 1978-10-23 1981-02-24 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Optical instrument for gathering and distribution of light
US4460940A (en) * 1981-11-07 1984-07-17 Kei Mori Apparatus for uniform illumination employing light diffuser
JPS58119108A (ja) * 1982-01-09 1983-07-15 森　敬 装飾灯
IL86296A (en) * 1988-05-06 1991-12-15 Univ Ramot Hollow fiber waveguide and method of making it
US4932749A (en) * 1989-03-17 1990-06-12 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes George Claude Optical waveguides formed from multiple layers

Also Published As

Publication number Publication date
US5022728A (en) 1991-06-11
EP0371073A1 (de) 1990-06-06
EP0371073B1 (de) 1992-06-17
ATE77491T1 (de) 1992-07-15
JPH03500214A (ja) 1991-01-17
WO1989002606A1 (en) 1989-03-23

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee