ZA725307B - Prismatic lens for lighting fixture - Google Patents

Prismatic lens for lighting fixture

Info

Publication number
ZA725307B
ZA725307B ZA725307A ZA725307A ZA725307B ZA 725307 B ZA725307 B ZA 725307B ZA 725307 A ZA725307 A ZA 725307A ZA 725307 A ZA725307 A ZA 725307A ZA 725307 B ZA725307 B ZA 725307B
Authority
ZA
South Africa
Prior art keywords
lighting fixture
prismatic lens
prismatic
lens
fixture
Prior art date
Application number
ZA725307A
Inventor
L Stahlhut
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 ZA725307B publication Critical patent/ZA725307B/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)
ZA725307A 1971-08-05 1972-08-02 Prismatic lens for lighting fixture ZA725307B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA725307B true ZA725307B (en) 1973-04-25

Family

ID=22615098

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA725307A ZA725307B (en) 1971-08-05 1972-08-02 Prismatic lens for lighting fixture

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)

Families Citing this family (37)

* 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
DE9315199U1 (en) * 1993-10-08 1995-02-09 Trilux-Lenze Gmbh + Co Kg, 59759 Arnsberg lamp
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
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
US6845212B2 (en) 1999-10-08 2005-01-18 3M Innovative Properties Company Optical element having programmed optical structures
US6356391B1 (en) 1999-10-08 2002-03-12 3M Innovative Properties Company Optical film with variable angle prisms
DE19955435C1 (en) * 1999-11-18 2001-08-09 Lid Light Design Dr Ottokar Sc Anti-glare element for elongated illuminants
EP1311879A2 (en) * 2000-07-14 2003-05-21 Ledalite Architectural Products Inc. Light control devices with kinoform diffusers
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
KR101293043B1 (en) 2005-11-14 2013-08-05 코닌클리즈케 필립스 일렉트로닉스 엔.브이. Thin and efficient light collimating device
KR101517356B1 (en) * 2007-04-10 2015-05-04 필립스 일렉트로닉스 엘티디. 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
US10072816B2 (en) 2013-06-19 2018-09-11 Bright View Technologies Corporation Microstructure-based optical diffusers for creating batwing and other lighting patterns
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
WO2015184456A1 (en) * 2014-05-30 2015-12-03 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

Also Published As

Publication number Publication date
NL155088B (en) 1977-11-15
DE2238589B2 (en) 1978-08-10
FR2148287A1 (en) 1973-03-11
JPS5144355B2 (en) 1976-11-27
ATA670872A (en) 1975-12-15
US3735124A (en) 1973-05-22
NL7210615A (en) 1973-02-07
AT331916B (en) 1976-08-25
SE385401B (en) 1976-06-28
AU452989B2 (en) 1974-09-19
BR7205263D0 (en) 1973-06-05
CA948607A (en) 1974-06-04
JPS4826148A (en) 1973-04-05
AU4489372A (en) 1974-01-31
DE2238589A1 (en) 1973-02-22
GB1340645A (en) 1973-12-12
ES405592A1 (en) 1975-08-01
IT965964B (en) 1974-02-11
BE787114A (en) 1973-02-05
DE2238589C3 (en) 1979-04-12
FR2148287B1 (en) 1975-09-12

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