GB1302603A - - Google Patents

Info

Publication number
GB1302603A
GB1302603A GB1792970A GB1792970A GB1302603A GB 1302603 A GB1302603 A GB 1302603A GB 1792970 A GB1792970 A GB 1792970A GB 1792970 A GB1792970 A GB 1792970A GB 1302603 A GB1302603 A GB 1302603A
Authority
GB
United Kingdom
Prior art keywords
grooves
shade
cover
diagonal
lines
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
Application number
GB1792970A
Other languages
English (en)
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 filed Critical
Publication of GB1302603A publication Critical patent/GB1302603A/en
Expired 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
    • F21V5/00—Refractors for light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
GB1792970A 1969-04-21 1970-04-15 Expired GB1302603A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1920071A DE1920071C3 (de) 1969-04-21 1969-04-21 Leuchte mit langgestreckten Lampen und einer transparenten Abdeckung

Publications (1)

Publication Number Publication Date
GB1302603A true GB1302603A (enrdf_load_stackoverflow) 1973-01-10

Family

ID=5731771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1792970A Expired GB1302603A (enrdf_load_stackoverflow) 1969-04-21 1970-04-15

Country Status (6)

Country Link
US (1) US3716710A (enrdf_load_stackoverflow)
AT (1) AT297843B (enrdf_load_stackoverflow)
DE (1) DE1920071C3 (enrdf_load_stackoverflow)
FR (1) FR2045490A5 (enrdf_load_stackoverflow)
GB (1) GB1302603A (enrdf_load_stackoverflow)
NL (1) NL164126C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450509A (en) * 1982-08-17 1984-05-22 Thorn Emi Plc Lanterns for area lighting

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527287B2 (de) * 1975-06-19 1979-11-29 Sylvan R. Shemitz And Associates, Inc., West Haven, Conn. (V.St.A.) Beleuchtungsanordnung zum Beleuchten eines Arbeitsplatzes
NL8403064A (nl) * 1984-10-09 1986-05-01 Philips Nv Verlichtingseenheid.
US4984144A (en) * 1987-05-08 1991-01-08 Minnesota Mining And Manufacturing Company High aspect ratio light fixture and film for use therein
KR890005451A (ko) * 1987-09-21 1989-05-15 마쯔우라 다까오 차량 램프
US4964636A (en) * 1988-02-23 1990-10-23 Hideyuki Ashihara Police baton with rotatable crosshandle
US5197734A (en) * 1989-01-20 1993-03-30 Hideyuki Ashihara Crosshanded guard baton (A)
JPH056523U (ja) * 1991-07-02 1993-01-29 株式会社モチロ企画 蛍光灯用照明カバー
US5190370A (en) * 1991-08-21 1993-03-02 Minnesota Mining And Manufacturing Company High aspect ratio lighting element
US5197792A (en) * 1992-04-21 1993-03-30 General Motors Corporation Illuminator device for a display panel
GB2301894B (en) * 1995-06-07 1998-03-11 Toyoda Gosei Kk Light-driven display device
JPH09105804A (ja) * 1995-10-13 1997-04-22 Konica Corp 光制御シート、面光源装置及び液晶表示装置
US5971570A (en) * 1995-11-13 1999-10-26 Simon; Jerome H. Decorative prismatic lens jacket for a lineal source
DE19731142B4 (de) * 1997-07-18 2004-05-13 Kaul, Sabine Lichtverteilstruktur
US6033094A (en) * 1997-10-02 2000-03-07 Fresnel Technologies, Inc. Microlens array for improved illumination patterns
US7364341B2 (en) * 1999-02-23 2008-04-29 Solid State Opto Limited Light redirecting films including non-interlockable optical elements
DE19923225B4 (de) * 1999-05-20 2009-10-22 Zumtobel Staff Gmbh Optisches Element zur Umlenkung von Lichtstrahlen und Herstellungsverfahren
US7187505B2 (en) * 2002-10-07 2007-03-06 Fresnel Technologies, Inc. Imaging lens for infrared cameras
US20050271348A1 (en) * 2004-06-02 2005-12-08 Hsin-Hsin Huang Hsu Prism sheet for a backlight module
US7866871B2 (en) 2006-01-13 2011-01-11 Avery Dennison Corporation Light enhancing structures with a plurality of arrays of elongate features
US20070086207A1 (en) * 2006-01-13 2007-04-19 Optical Research Associates Display systems including light enhancing structures with arrays of elongate features
US7366393B2 (en) * 2006-01-13 2008-04-29 Optical Research Associates Light enhancing structures with three or more arrays of elongate features
US7545569B2 (en) * 2006-01-13 2009-06-09 Avery Dennison Corporation Optical apparatus with flipped compound prism structures
US7674028B2 (en) * 2006-01-13 2010-03-09 Avery Dennison Corporation Light enhancing structures with multiple arrays of elongate features of varying characteristics
JP2008089977A (ja) * 2006-10-02 2008-04-17 Canon Inc 照射装置及びそれを有する照射システム
US8011802B2 (en) * 2007-07-24 2011-09-06 Sony Corporation Optical film, lighting device and display unit
CN101393279B (zh) * 2007-09-17 2010-12-01 鸿富锦精密工业（深圳）有限公司 背光模组及其棱镜片
CN101545999A (zh) * 2008-03-28 2009-09-30 鸿富锦精密工业（深圳）有限公司 棱镜片
CN101620292A (zh) * 2008-07-04 2010-01-06 鸿富锦精密工业（深圳）有限公司 光学板及采用该光学板的背光模组
DE102012102987A1 (de) 2012-04-05 2013-10-10 Siteco Beleuchtungstechnik Gmbh Prismenplatte mit variierenden Flankenwinkeln
DE102012102986A1 (de) 2012-04-05 2013-10-10 Siteco Beleuchtungstechnik Gmbh Prismenplatte mit variierenden Flankenwinkeln

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2558422A (en) * 1948-08-27 1951-06-26 Leo Nickolas M De Antiglare lens with a central reticulated area and differently reticulated surrounding area

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450509A (en) * 1982-08-17 1984-05-22 Thorn Emi Plc Lanterns for area lighting

Also Published As

Publication number Publication date
DE1920071B2 (de) 1975-01-30
AT297843B (de) 1972-04-10
DE1920071C3 (de) 1979-07-19
US3716710A (en) 1973-02-13
DE1920071A1 (de) 1970-10-22
NL164126C (nl) 1980-11-17
FR2045490A5 (enrdf_load_stackoverflow) 1971-02-26
NL7005671A (enrdf_load_stackoverflow) 1970-10-23
NL164126B (nl) 1980-06-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee