GB1457443A - Lighting panel - Google Patents

Lighting panel

Info

Publication number
GB1457443A
GB1457443A GB5449973A GB5449973A GB1457443A GB 1457443 A GB1457443 A GB 1457443A GB 5449973 A GB5449973 A GB 5449973A GB 5449973 A GB5449973 A GB 5449973A GB 1457443 A GB1457443 A GB 1457443A
Authority
GB
United Kingdom
Prior art keywords
sheet
pattern
pyramids
degrees
angle
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
GB5449973A
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.)
US Industries Inc
Original Assignee
US Industries Inc
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 US Industries Inc filed Critical US Industries Inc
Publication of GB1457443A publication Critical patent/GB1457443A/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
    • F21V5/02—Refractors for light sources of prismatic shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F21V3/049—Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Planar Illumination Modules (AREA)

Abstract

1457443 Light refracting plates US INDUSTRIES Inc 23 Nov 1973 [24 Nov 1972] 54499/73 Heading F4R A lighting panel for use with fluorescent lamps comprises a sheet of plastics material, e.g. polystyrene, the surface of the sheet which is nearer to the lamps, in use, having thereon a refracting pattern of congruent triangularbased pyramids, the base lines of which are coplanar and common to adjacent pyramids, the angle of inclination of the sides of the pyramids being 50 to 60 degrees. As shown, the pattern is formed by three sets of parallel V-shaped grooves A-A, B-B, C-C, in the said surface of the sheet, each groove having an included angle of 66 degrees, and each set of grooves extending at an angle of 60 degrees relative to the other two sets. At apices D1, D2, each side of each pyramid is right-angular. The pattern may be made by extrusion embossing. Preferably, visible lamp image is reduced by an opal acrylic sheet placed over the patterned surface. The opposite surface may have a light-modifying or decorative pattern embossed therein or applied thereto on a further panel.
GB5449973A 1972-11-24 1973-11-23 Lighting panel Expired GB1457443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00309098A US3829680A (en) 1972-11-24 1972-11-24 Lighting panel

Publications (1)

Publication Number Publication Date
GB1457443A true GB1457443A (en) 1976-12-01

Family

ID=23196686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5449973A Expired GB1457443A (en) 1972-11-24 1973-11-23 Lighting panel

Country Status (5)

Country Link
US (1) US3829680A (en)
JP (2) JPS4983281A (en)
CA (1) CA989791A (en)
DE (1) DE2357060C3 (en)
GB (1) GB1457443A (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988609A (en) * 1975-03-14 1976-10-26 K-S-H, Inc. Lighting panel and luminaire using it
JPS51144089A (en) * 1975-06-04 1976-12-10 Sekisui Kinzoku:Kk Illumination facility
US4053762A (en) * 1975-12-29 1977-10-11 Armstrong Cork Company Twin-beam luminaire lens
US4064433A (en) * 1976-06-30 1977-12-20 K-S-H, Inc. Prismatic lighting panel
FR2378234A1 (en) * 1977-01-24 1978-08-18 Cibie Projecteurs SIGNALING LIGHT WITH BUILT-IN REFLECTOR FOR VEHICLE
US4249331A (en) * 1979-03-05 1981-02-10 Vernon John B Dynamic star burst display
JPS56146304U (en) * 1980-04-01 1981-11-04
US4403275A (en) * 1981-03-16 1983-09-06 Fao, Inc. Wattless lamp assembly
JPS6276105A (en) * 1985-09-30 1987-04-08 東芝ライテック株式会社 Fluorescent illumination lamp
CA1316159C (en) * 1987-05-08 1993-04-13 Sanford Cobb, Jr. High aspect ratio light fixture and film for use therein
US4796160A (en) * 1987-11-13 1989-01-03 Myron Kahn Polarized lighting panel
US4998188A (en) * 1988-12-02 1991-03-05 Degelmann Paul G Wall mounted lighting fixture
US5123722A (en) * 1990-07-20 1992-06-23 Meymand Darlene K Decorative glass
JPH056523U (en) * 1991-07-02 1993-01-29 株式会社モチロ企画 Lighting cover for fluorescent lamps
US5359498A (en) * 1992-10-21 1994-10-25 Karpen Daniel N Ultraviolet transmitting multi-layer polarizer
EP0962807B1 (en) 1993-12-21 2008-12-03 Minnesota Mining And Manufacturing Company Multilayered optical film
US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
US5592330A (en) * 1995-05-19 1997-01-07 Reflexite Corporation Retroreflective prism arrays with formed air spheres therein
KR19980060952A (en) * 1996-12-31 1998-10-07 박병재 Cable Holder Structure of Door Window Regulator
US6033094A (en) * 1997-10-02 2000-03-07 Fresnel Technologies, Inc. Microlens array for improved illumination patterns
US6213625B1 (en) * 1999-04-23 2001-04-10 Nsi Enterprises, Inc. Inverted apex prismatic lens
DE19923225B4 (en) * 1999-05-20 2009-10-22 Zumtobel Staff Gmbh Optical element for deflecting light rays and manufacturing processes
US7837361B2 (en) * 2000-07-14 2010-11-23 Ledalite Architectural Products Light control devices implemented with diffusers having controllable diffusion characteristics
WO2002008799A2 (en) * 2000-07-14 2002-01-31 Ledalite Architectural Products Inc. Light control devices with kinoform diffusers
US7187505B2 (en) * 2002-10-07 2007-03-06 Fresnel Technologies, Inc. Imaging lens for infrared cameras
US20040174710A1 (en) * 2003-03-07 2004-09-09 Evan Gappelberg Illumination device using micro-textured sheet
NL1023737C2 (en) * 2003-06-24 2004-12-28 Klaus Herbert Gunter Wenger Light-distributing optical foil.
US7775700B2 (en) * 2004-10-01 2010-08-17 Rohm And Haas Electronics Materials Llc Turning film using array of roof prism structures
US7766515B2 (en) * 2005-04-20 2010-08-03 Dragonfish Technologies, Llc Light source with non-imaging optical distribution apparatus
JP2008089977A (en) * 2006-10-02 2008-04-17 Canon Inc Irradiating device and irradiating system having the same
DE102006054379A1 (en) 2006-11-17 2008-05-21 Zumtobel Lighting Gmbh Transparent plate with a surface structure for largely glare-free decoupling of the light generated by a luminaire
US8047673B2 (en) * 2007-04-10 2011-11-01 Philips Electronics Ltd Light control device exhibiting batwing luminous intensity distributions in upper and lower hemispheres
US20090201684A1 (en) * 2008-02-08 2009-08-13 Patty Helm Light Diffuser
CN101545997A (en) * 2008-03-28 2009-09-30 鸿富锦精密工业（深圳）有限公司 Prism sheet
CN101551478B (en) * 2008-04-01 2012-07-25 鸿富锦精密工业（深圳）有限公司 Prism sheet
US8988776B2 (en) * 2008-11-19 2015-03-24 3M Innovative Properties Company Multilayer optical film with output confinement in both polar and azimuthal directions and related constructions
JP5426687B2 (en) * 2008-11-19 2014-02-26 スリーエム イノベイティブ プロパティズ カンパニー Brewster angle film for light management in luminaires and other lighting systems
US20110222263A1 (en) * 2008-11-19 2011-09-15 Weber Michael F High transmission flux leveling multilayer optical film and related constructions
KR101613758B1 (en) 2008-11-19 2016-04-19 쓰리엠 이노베이티브 프로퍼티즈 컴파니 Reflective Film Combinations With Output Confinement in Both Polar and Azimuthal Directions and Related Constructions
CN101936477B (en) * 2010-09-24 2012-03-14 鸿富锦精密工业（深圳）有限公司 Two-color light mixing LED point light source device
KR20130047334A (en) * 2011-10-31 2013-05-08 엘지이노텍 주식회사 Illuminating member and illumination device including the illuminating member
EP3011372B1 (en) 2013-06-19 2021-12-08 Bright View Technologies Corporation Microstructure-based optical diffuser for creating batwing patterns and method for its manufacture
US10302275B2 (en) 2013-06-19 2019-05-28 Bright View Technologies Corporation Microstructure-based diffusers for creating batwing lighting patterns
WO2015013594A1 (en) 2013-07-26 2015-01-29 Bright View Technologies Corporation Shaped microstructure-based optical diffusers
US20170114983A1 (en) 2014-05-30 2017-04-27 Osram Sylvania Inc. Hybrid optical systems including flexible optical systems and light control films
US10889990B2 (en) * 2016-03-31 2021-01-12 Vkr Holding A/S Skylight cover with advantageous topography
DE102018106958A1 (en) * 2017-03-24 2018-09-27 Panasonic Intellectual Property Management Co., Ltd. Lighting device and lighting system
JP7436369B2 (en) 2018-01-30 2024-02-21 ブライト ヴュー テクノロジーズ インク Microstructure that converts light with Lambertian distribution into batwing distribution

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4945564Y2 (en) * 1971-01-16 1974-12-13

Also Published As

Publication number Publication date
AU6286873A (en) 1975-05-29
DE2357060C3 (en) 1978-05-18
DE2357060B2 (en) 1977-09-29
JPS5457790U (en) 1979-04-21
DE2357060A1 (en) 1974-05-30
US3829680A (en) 1974-08-13
CA989791A (en) 1976-05-25
JPS4983281A (en) 1974-08-10

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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