DK52988A - Belysning - Google Patents
BelysningInfo
- 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
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)
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)
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)
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 |
-
1987
- 1987-02-03 US US07/010,517 patent/US4816976A/en not_active Expired - Lifetime
-
1988
- 1988-01-26 EP EP88101064A patent/EP0277579A3/en not_active Ceased
- 1988-02-02 NO NO880453A patent/NO880453L/no unknown
- 1988-02-02 DK DK052988A patent/DK52988A/da not_active Application Discontinuation
- 1988-02-03 ZA ZA880769A patent/ZA88769B/xx unknown
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 |