CA920563A - Prismatic light louver - Google Patents

Prismatic light louver

Info

Publication number
CA920563A
CA920563A CA104232A CA104232A CA920563A CA 920563 A CA920563 A CA 920563A CA 104232 A CA104232 A CA 104232A CA 104232 A CA104232 A CA 104232A CA 920563 A CA920563 A CA 920563A
Authority
CA
Canada
Prior art keywords
prismatic light
light louver
louver
prismatic
light
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
CA104232A
Other versions
CA104232S (en
Inventor
P. Osterberg Rodney
A. D. Schwartz Robert
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.)
SAID ROBERT A D SCHWARTZ
Original Assignee
SAID ROBERT A D SCHWARTZ
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 SAID ROBERT A D SCHWARTZ filed Critical SAID ROBERT A D SCHWARTZ
Application granted granted Critical
Publication of CA920563A publication Critical patent/CA920563A/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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Optical Measuring Cells (AREA)
CA104232A 1970-02-02 1971-02-02 Prismatic light louver Expired CA920563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US795070A 1970-02-02 1970-02-02

Publications (1)

Publication Number Publication Date
CA920563A true CA920563A (en) 1973-02-06

Family

ID=21728993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA104232A Expired CA920563A (en) 1970-02-02 1971-02-02 Prismatic light louver

Country Status (5)

Country Link
US (1) US3668381A (en)
CA (1) CA920563A (en)
DE (2) DE7103780U (en)
FR (1) FR2079195B1 (en)
GB (1) GB1302648A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2247672B1 (en) * 1973-10-12 1976-06-18 Alexandre Et Co
US3996458A (en) * 1974-02-25 1976-12-07 Jones Terry D Ceiling system
US4462068A (en) * 1982-06-24 1984-07-24 Manville Service Corporation Luminaire with improved lens structure
US4761641A (en) * 1983-01-21 1988-08-02 Vidcom Rentservice B.V. Information display system
ATE352011T1 (en) * 2003-07-24 2007-02-15 Johannes Jungel-Schmid ROOM LIGHT DEVICE
JP2006091821A (en) * 2004-08-26 2006-04-06 Fuji Photo Film Co Ltd Prism sheet and display device using the same
JP5011676B2 (en) * 2005-08-12 2012-08-29 株式会社日立製作所 Equipment provided with display device
CN101344609B (en) * 2007-07-12 2012-10-10 鸿富锦精密工业（深圳）有限公司 Back light module and optical plate
US20100080007A1 (en) * 2008-09-29 2010-04-01 Ping-Han Chuang Light distribution board having improved grating structure including a plurality of light gratings each with multiple focuses
TWI392933B (en) * 2009-12-31 2013-04-11 Au Optronics Corp A diffuse plate with at least one star diffuse structure and a backlight module using the same
USD745713S1 (en) * 2014-05-01 2015-12-15 Peterson Manufacturing Company Combined stop, tail, turn lamp
USD747018S1 (en) * 2014-05-01 2016-01-05 Peterson Manufacturing Company Combined stop, tail, turn lamp
USD774686S1 (en) 2015-02-27 2016-12-20 Star Headlight & Lantern Co., Inc. Optical lens for projecting light from LED light emitters
USD775407S1 (en) 2015-02-27 2016-12-27 Star Headlight & Lantern Co., Inc. Optical lens for projecting light from LED light emitters
CN210717380U (en) * 2019-11-08 2020-06-09 欧普照明股份有限公司 Lens and light source module

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1241886A (en) * 1916-07-12 1917-10-02 Levi Leroy Rowe Lens.
US1944154A (en) * 1930-02-10 1934-01-23 Gen Motors Res Corp Stop light lens
US2859334A (en) * 1954-09-09 1958-11-04 Edwin F Guth Company Louvers
US3019334A (en) * 1956-12-26 1962-01-30 Willis L Lipscomb Cellular light control panel
US2937265A (en) * 1958-02-10 1960-05-17 Blitzer Bud Cellular lighting element and means for supporting the same
US3368070A (en) * 1965-06-15 1968-02-06 United Lighting & Ceiling Co Modular closed louver panel system

Also Published As

Publication number Publication date
FR2079195B1 (en) 1973-10-19
GB1302648A (en) 1973-01-10
US3668381A (en) 1972-06-06
FR2079195A1 (en) 1971-11-12
DE2104788A1 (en) 1971-08-19
DE7103780U (en) 1973-01-18

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