Title:
LEDを有する照明装置
Document Type and Number:
Japanese Patent JP4783504
Kind Code:
B2
Abstract:
A light source includes an array of LEDs in each of a plurality colors such as red, green, and blue in the entrance aperture of a tubular reflector which preferably has convex walls facing the optic axis and flares outward toward the exit aperture, and preferably has a polygonal cross section such as a square. Mixing of colors is further promoted by utilizing a large number of small LEDs with the LEDs of each color being centered on the optic axis.
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Inventors:
Thomas marshall
Michael Day Pashley
Stephen Hermann
Jeffrey Earthimus
Michael Day Pashley
Stephen Hermann
Jeffrey Earthimus
Application Number:
JP2000608119A
Publication Date:
September 28, 2011
Filing Date:
March 10, 2000
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S2/00; F21K99/00; F21V7/10; F21S8/04; F21S10/02; F21V7/00; F21V7/04; F21V7/22; F21V9/40; H01L25/13; H01L33/00; F21Y101/02
Domestic Patent References:
| JPS63163305A | 1988-07-06 | |||
| JPH02155279A | 1990-06-14 | |||
| JPH10106327A | 1998-04-24 | |||
| JPH1166918A | 1999-03-09 | |||
| JPH04118802A | 1992-04-20 | |||
| JPH0416422U | 1992-02-10 | |||
| JPH02247684A | 1990-10-03 |
Foreign References:
| US5255171A | 1993-10-19 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato