AT331916B - LIGHT DISPERSAL BODY, IN PARTICULAR FOR CEILING LIGHTS - Google Patents

LIGHT DISPERSAL BODY, IN PARTICULAR FOR CEILING LIGHTS

Info

Publication number
AT331916B
AT331916B AT670872A AT670872A AT331916B AT 331916 B AT331916 B AT 331916B AT 670872 A AT670872 A AT 670872A AT 670872 A AT670872 A AT 670872A AT 331916 B AT331916 B AT 331916B
Authority
AT
Austria
Prior art keywords
ceiling lights
light dispersal
dispersal body
light
ceiling
Prior art date
Application number
AT670872A
Other languages
German (de)
Other versions
ATA670872A (en
Original Assignee
Emerson Electric 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 Emerson Electric Co filed Critical Emerson Electric Co
Publication of ATA670872A publication Critical patent/ATA670872A/en
Application granted granted Critical
Publication of AT331916B publication Critical patent/AT331916B/en

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
    • 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)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Overhead Projectors And Projection Screens (AREA)
AT670872A 1971-08-05 1972-08-03 LIGHT DISPERSAL BODY, IN PARTICULAR FOR CEILING LIGHTS AT331916B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16930371A 1971-08-05 1971-08-05

Publications (2)

Publication Number Publication Date
ATA670872A ATA670872A (en) 1975-12-15
AT331916B true AT331916B (en) 1976-08-25

Family

ID=22615098

Family Applications (1)

Application Number Title Priority Date Filing Date
AT670872A AT331916B (en) 1971-08-05 1972-08-03 LIGHT DISPERSAL BODY, IN PARTICULAR FOR CEILING LIGHTS

Country Status (15)

Country Link
US (1) US3735124A (en)
JP (1) JPS5144355B2 (en)
AT (1) AT331916B (en)
AU (1) AU452989B2 (en)
BE (1) BE787114A (en)
BR (1) BR7205263D0 (en)
CA (1) CA948607A (en)
DE (1) DE2238589C3 (en)
ES (1) ES405592A1 (en)
FR (1) FR2148287B1 (en)
GB (1) GB1340645A (en)
IT (1) IT965964B (en)
NL (1) NL155088B (en)
SE (1) SE385401B (en)
ZA (1) ZA725307B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315199U1 (en) * 1993-10-08 1995-02-09 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg lamp

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866036A (en) * 1974-04-16 1975-02-11 Ignacio Goytisolo Taltavull Fluorescent fixture with optical device
CA1066250A (en) * 1974-06-18 1979-11-13 Thomas W. Dey Lighting panel for use with collimated light
US4004145A (en) * 1975-02-24 1977-01-18 Ignacio Goytisolo Taltavull Nil-luminance lighting panel
US3978332A (en) * 1975-07-14 1976-08-31 Ignacio Goytisolo Taltavull Lighting apparatus with batwing light distribution
JPS5255689U (en) * 1975-10-20 1977-04-21
US4118763A (en) * 1976-04-12 1978-10-03 General Electric Company Variable transmission prismatic refractors
FR2480405A1 (en) * 1980-04-14 1981-10-16 Allibert Exploitation LIGHT DIFFUSER
US4450509A (en) * 1982-08-17 1984-05-22 Thorn Emi Plc Lanterns for area lighting
US4703405A (en) * 1986-07-17 1987-10-27 Ian Lewin Glare reducing lens
US5541825A (en) * 1994-08-31 1996-07-30 Hughes Aircraft Company Dual image CHMSLs without holography
IT1289716B1 (en) * 1996-12-05 1998-10-16 Fiat Ricerche LIGHTING DEVICE SUITABLE TO GENERATE A RECTANGULAR PATTERN IN THE WORKING AREA, FOR EXAMPLE FOR THE LIGHTING OF STRIPS
US6033094A (en) * 1997-10-02 2000-03-07 Fresnel Technologies, Inc. Microlens array for improved illumination patterns
US6845212B2 (en) * 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
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
US6447135B1 (en) 1999-10-08 2002-09-10 3M Innovative Properties Company Lightguide having a directly secured reflector and method of making the same
DE19955435C1 (en) * 1999-11-18 2001-08-09 Lid Light Design Dr Ottokar Sc Anti-glare element for elongated illuminants
US7660039B2 (en) * 2000-07-14 2010-02-09 Ledalite Architectural Products Inc. Light control devices and methods implemented with kinoform diffusers having controllable diffusion characteristics
US7837361B2 (en) * 2000-07-14 2010-11-23 Ledalite Architectural Products Light control devices implemented with diffusers having controllable diffusion characteristics
ITMI20011368A1 (en) * 2001-06-28 2002-12-28 Sirrah S R L PROCEDURE FOR THE PRODUCTION OF DIFFUSION SCREENS FOR LIGHTING EQUIPMENT AND DIFFUSER SCREEN SO OBTAINED
DE10242441A1 (en) * 2002-09-11 2004-04-01 Erco Leuchten Gmbh lamp
US7187505B2 (en) * 2002-10-07 2007-03-06 Fresnel Technologies, Inc. Imaging lens for infrared cameras
GB2408846A (en) * 2003-12-02 2005-06-08 Sung Tao Ho LED lamp tube
JP4499519B2 (en) * 2004-07-12 2010-07-07 大日本印刷株式会社 Diffusion sheet, surface light source device, transmissive display device
JP5178523B2 (en) * 2005-11-14 2013-04-10 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Thin and highly efficient optical collimation device
CN101784836B (en) * 2007-04-10 2012-07-04 飞利浦电子公司 Light control device exhibiting batwing luminous intensity distributions in upper and lower hemispheres
CN101393278A (en) * 2007-09-17 2009-03-25 鸿富锦精密工业（深圳）有限公司 Back light module unit and prismatic lens thereof
CN101424384B (en) * 2007-10-31 2011-05-04 富士迈半导体精密工业（上海）有限公司 Light shield and illuminating apparatus employing the light shield
WO2010010494A1 (en) * 2008-07-24 2010-01-28 Koninklijke Philips Electronics N.V. Luminaire device with several lighting units
US10302275B2 (en) 2013-06-19 2019-05-28 Bright View Technologies Corporation Microstructure-based diffusers for creating batwing lighting patterns
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
DE202013105863U1 (en) * 2013-12-20 2015-03-24 Zumtobel Lighting Gmbh Arrangement for fading out the light output
TW201545384A (en) * 2014-05-29 2015-12-01 國立交通大學 Optical film and light source module
US10260711B2 (en) * 2014-05-30 2019-04-16 Osram Sylvania Inc. Light control films and lighting devices including same
US10267489B2 (en) * 2015-12-22 2019-04-23 Citizen Electronics Co., Ltd. Light-emitting apparatus
KR102578775B1 (en) * 2021-05-26 2023-09-15 (주)에프비지코리아 Temperature sensing apparatus using fiber bragg grating sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US593045A (en) * 1897-11-02 Light-tran-smitter
GB190908324A (en) * 1908-10-14 1909-09-30 Otis Angelo Mygatt Improved Glassware.
GB620639A (en) * 1947-01-24 1949-03-28 Holophane Sa Improvements in and relating to light controlling devices
US3234376A (en) * 1963-02-11 1966-02-08 Michael J Ceglia Glare-free lighting fixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315199U1 (en) * 1993-10-08 1995-02-09 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg lamp

Also Published As

Publication number Publication date
FR2148287B1 (en) 1975-09-12
NL7210615A (en) 1973-02-07
ES405592A1 (en) 1975-08-01
ZA725307B (en) 1973-04-25
BR7205263D0 (en) 1973-06-05
JPS5144355B2 (en) 1976-11-27
CA948607A (en) 1974-06-04
DE2238589B2 (en) 1978-08-10
NL155088B (en) 1977-11-15
SE385401B (en) 1976-06-28
FR2148287A1 (en) 1973-03-11
AU4489372A (en) 1974-01-31
DE2238589A1 (en) 1973-02-22
BE787114A (en) 1973-02-05
ATA670872A (en) 1975-12-15
US3735124A (en) 1973-05-22
GB1340645A (en) 1973-12-12
JPS4826148A (en) 1973-04-05
DE2238589C3 (en) 1979-04-12
IT965964B (en) 1974-02-11
AU452989B2 (en) 1974-09-19

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee