DK52988A - Belysning - Google Patents

Belysning

Info

Publication number
DK52988A
DK52988A DK052988A DK52988A DK52988A DK 52988 A DK52988 A DK 52988A DK 052988 A DK052988 A DK 052988A DK 52988 A DK52988 A DK 52988A DK 52988 A DK52988 A DK 52988A
Authority
DK
Denmark
Prior art keywords
lighting
Prior art date
Application number
DK052988A
Other languages
Danish (da)
English (en)
Other versions
DK52988D0 (da
Inventor
Herbert Alan Fouke
John Robert Brass
Original Assignee
Manville Corp
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 Manville Corp filed Critical Manville Corp
Publication of DK52988D0 publication Critical patent/DK52988D0/da
Publication of DK52988A publication Critical patent/DK52988A/da

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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21V5/04—Refractors for light sources of lens shape

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
DK052988A 1987-02-03 1988-02-02 Belysning DK52988A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/010,517 US4816976A (en) 1987-02-03 1987-02-03 High efficiency luminaire with high angle brightness control

Publications (2)

Publication Number Publication Date
DK52988D0 DK52988D0 (da) 1988-02-02
DK52988A true DK52988A (da) 1988-08-04

Family

ID=21746119

Family Applications (1)

Application Number Title Priority Date Filing Date
DK052988A DK52988A (da) 1987-02-03 1988-02-02 Belysning

Country Status (5)

Country Link
US (1) US4816976A (no)
EP (1) EP0277579A3 (no)
DK (1) DK52988A (no)
NO (1) NO880453L (no)
ZA (1) ZA88769B (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5149191A (en) * 1991-12-23 1992-09-22 Ian Lewin Combination louver/lens light fixture shield
US5416684A (en) * 1992-03-27 1995-05-16 General Electric Company Luminaire having predominantly refractive downlight capabilities
US5444606A (en) * 1994-02-10 1995-08-22 Lexalite International Corporation Prismatic reflector and prismatic lens
EP0864807B1 (fr) * 1997-02-14 2006-08-30 Koninklijke Philips Electronics N.V. Luminaire d'éclairage routier
US7455431B2 (en) 2005-03-11 2008-11-25 Richard Brower High efficiency light fixture
US7563004B2 (en) * 2006-01-17 2009-07-21 Acuity Brands, Inc. Volumetric downlight light fixture
CA2623967C (en) * 2007-03-06 2015-11-24 Canlyte Inc. Lighting device with composite reflector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2269554A (en) * 1938-03-01 1942-01-13 Holophane Co Inc Luminaire
US2293672A (en) * 1941-02-08 1942-08-18 Railley Corp Lamp shade and method of making same
US2818500A (en) * 1953-07-03 1957-12-31 Holophane Co Inc Prismatic reflectors
US3483366A (en) * 1966-11-01 1969-12-09 Holophane Co Inc Luminaire lens
AU459836B2 (en) * 1971-10-14 1975-04-10 Holophane Company, Inc Veiling glare control with luminaires having linearly extending light sources
US3763369A (en) * 1971-11-18 1973-10-02 Holophane Co Inc Refractive grid
DE2654304C3 (de) * 1976-11-30 1981-10-15 Sylvan R. Shemitz and Associates, Inc., West Haven, Conn. Leuchte
DE2731671A1 (de) * 1977-07-13 1979-01-25 Christian Bartenbach Deckenleuchte
US4300185A (en) * 1979-12-07 1981-11-10 C. W. Cole & Company, Inc. Light fixture unit for open plan office

Also Published As

Publication number Publication date
EP0277579A2 (en) 1988-08-10
US4816976A (en) 1989-03-28
NO880453L (no) 1988-08-04
DK52988D0 (da) 1988-02-02
EP0277579A3 (en) 1989-10-25
NO880453D0 (no) 1988-02-02
ZA88769B (en) 1988-08-03

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment