DE68909668D1 - Fresnel-Reflektor mit mehrflächigen Elementen. - Google Patents

Fresnel-Reflektor mit mehrflächigen Elementen.

Info

Publication number
DE68909668D1
DE68909668D1 DE89304713T DE68909668T DE68909668D1 DE 68909668 D1 DE68909668 D1 DE 68909668D1 DE 89304713 T DE89304713 T DE 89304713T DE 68909668 T DE68909668 T DE 68909668T DE 68909668 D1 DE68909668 D1 DE 68909668D1
Authority
DE
Germany
Prior art keywords
surface elements
fresnel reflector
fresnel
reflector
elements
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
DE89304713T
Other languages
English (en)
Other versions
DE68909668T2 (de
Inventor
Sanford Cobb
Richard A C O Minnesota Miller
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
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE68909668D1 publication Critical patent/DE68909668D1/de
Publication of DE68909668T2 publication Critical patent/DE68909668T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F21V7/04—Optical design
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Road Signs Or Road Markings (AREA)
DE89304713T 1988-05-10 1989-05-10 Fresnel-Reflektor mit mehrflächigen Elementen. Expired - Fee Related DE68909668T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/192,212 US4989125A (en) 1988-05-10 1988-05-10 Reflector using fresnel-type structures having a plurality of active faces

Publications (2)

Publication Number Publication Date
DE68909668D1 true DE68909668D1 (de) 1993-11-11
DE68909668T2 DE68909668T2 (de) 1994-04-28

Family

ID=22708712

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89304713T Expired - Fee Related DE68909668T2 (de) 1988-05-10 1989-05-10 Fresnel-Reflektor mit mehrflächigen Elementen.

Country Status (9)

Country Link
US (1) US4989125A (de)
EP (1) EP0341996B1 (de)
JP (1) JPH0218801A (de)
KR (1) KR0147828B1 (de)
AU (1) AU629207B2 (de)
BR (1) BR8902170A (de)
CA (1) CA1332390C (de)
DE (1) DE68909668T2 (de)
ES (1) ES2044107T3 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405563B1 (de) * 1989-06-29 1996-03-13 Dainippon Screen Mfg. Co., Ltd. Beleuchtungssystem
US5029060A (en) * 1990-07-17 1991-07-02 Minnesota Mining And Manufacturing Company Uniform intensity profile catadioptric lens
US5150966A (en) * 1990-09-19 1992-09-29 Minnesota Mining And Manufacturing Company Uniform intensity profile catadioptric lens
US5243506A (en) * 1991-06-17 1993-09-07 Tir Systems Ltd. High aspect ratio light emitter having high uniformity and directionality
US5339382A (en) * 1993-02-23 1994-08-16 Minnesota Mining And Manufacturing Company Prism light guide luminaire with efficient directional output
US5844730A (en) * 1993-04-07 1998-12-01 Nikon Corporation Light-supplying optical device
IT1267221B1 (it) * 1994-04-20 1997-01-28 Seima Italiana Spa Fanale per autoveicoli con riflettore a lenti
DE19521254A1 (de) * 1994-06-24 1996-01-04 Minnesota Mining & Mfg Anzeigesystem mit Helligkeitsverstärkungsfilm
KR100266339B1 (ko) * 1995-07-25 2000-09-15 와타나베 모토아키 유압 프레스의 고속 안전 회로
US5661839A (en) 1996-03-22 1997-08-26 The University Of British Columbia Light guide employing multilayer optical film
JPH1086899A (ja) * 1996-09-17 1998-04-07 Komii Kogei Kk 航空機客室用の監視ミラー
US6031958A (en) * 1997-05-21 2000-02-29 Mcgaffigan; Thomas H. Optical light pipes with laser light appearance
US6024462A (en) * 1997-06-10 2000-02-15 The University Of British Columbia High efficiency high intensity backlighting of graphic displays
US6079844A (en) * 1997-06-10 2000-06-27 The University Of British Columbia High efficiency high intensity backlighting of graphic displays
US6166787A (en) * 1998-03-17 2000-12-26 Motorola, Inc. Optical display device having prismatic film for enhanced viewing
US6285425B1 (en) 1998-06-29 2001-09-04 Motorola, Inc. Ridged reflector for an optical display having a curved and a planar facet for each ridge
US6285426B1 (en) 1998-07-06 2001-09-04 Motorola, Inc. Ridged reflector having optically transmissive properties for an optical display device
US6345982B1 (en) * 1999-09-01 2002-02-12 Darcy M. Dunaway Dental light controller and concentrator
JP4067387B2 (ja) * 2002-11-08 2008-03-26 アルプス電気株式会社 導光材および照明装置
US7088405B2 (en) * 2003-05-05 2006-08-08 3M Innovative Properties Company Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays
DE10341805A1 (de) 2003-09-10 2005-06-23 Giesecke & Devrient Gmbh Beleuchtungsvorrichtung
US20050237749A1 (en) * 2004-04-22 2005-10-27 3M Innovative Properties Company Transflector
CN100439943C (zh) * 2005-07-07 2008-12-03 香港理工大学 导光板及具有该导光板的背光模块
DE102007002438A1 (de) * 2007-01-10 2008-07-17 Fresnel Optics Gmbh Beleuchtungselement mit reflektierender Fresnelstruktur
DE102010027028B4 (de) * 2010-07-14 2016-06-02 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung mit einem homogen Licht verteilenden Reflektor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554315A (en) * 1925-02-26 1925-09-22 Frederick Joseph Green Reflector for headlights
FR696573A (fr) * 1929-06-10 1931-01-05 Perfectionnements aux réflecteurs de lumière
GB408366A (en) * 1932-11-09 1934-04-12 Holophane Ltd Improvements in prismatic lighting units
US2421277A (en) * 1943-05-12 1947-05-27 Richard W Luce Reflective sign
US3710095A (en) * 1970-09-23 1973-01-09 Gen Motors Corp Method of making a faceted reflector for a lighting unit
US4041306A (en) * 1975-12-15 1977-08-09 Kim Lighting, Inc. Luminaire and reflector therefor
US4081667A (en) * 1976-07-28 1978-03-28 Optical Coating Laboratory, Inc. Lighting fixture having fresnel reflector with high reflection coating thereon
JPS54161767A (en) * 1978-06-12 1979-12-21 Ichikoh Ind Ltd Lamp for automobile
JPS54161769A (en) * 1978-06-12 1979-12-21 Ichikoh Ind Ltd Lamp for automobile
US4360863A (en) * 1978-06-28 1982-11-23 International Telephone And Telegraph Corporation Luminaire for residential roadway lighting
ZA832713B (en) * 1982-04-20 1984-08-29 Evans Adlard & Co Glass fibre paper separator for electrochemical cells
FR2525733A1 (fr) * 1982-04-23 1983-10-28 Auteroche Sa Reflecteur a paraboloides multiples
JPS60163701A (ja) * 1984-02-06 1985-08-26 Tokai Rika Co Ltd 表示付回転体
FR2580782B1 (fr) * 1985-04-22 1987-07-10 Cibie Projecteurs Projecteur de route pour vehicule automobile incorporant un reflecteur elliptique et un reflecteur parabolique
WO1987000908A1 (en) * 1985-08-06 1987-02-12 K. J. Aldridge Automatic Systems Pty. Limited Traffic light lens
US4704661A (en) * 1986-08-25 1987-11-03 General Electric Company Faceted reflector for headlamps

Also Published As

Publication number Publication date
JPH0218801A (ja) 1990-01-23
DE68909668T2 (de) 1994-04-28
EP0341996A2 (de) 1989-11-15
US4989125A (en) 1991-01-29
KR890017487A (ko) 1989-12-16
EP0341996B1 (de) 1993-10-06
KR0147828B1 (ko) 1998-10-01
ES2044107T3 (es) 1994-01-01
CA1332390C (en) 1994-10-11
BR8902170A (pt) 1990-01-02
AU629207B2 (en) 1992-10-01
AU3379389A (en) 1989-11-16
EP0341996A3 (en) 1990-06-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee