Title:
レフレクタ及びレンズを有する照明装置
Document Type and Number:
Japanese Patent JP4287651
Kind Code:
B2
Abstract:
A light source includes an array of LED components in each of a plurality of colors such as red, green, and blue in the entrance aperture of a tubular reflector which has an exit aperture, an optic axis extending between the apertures, and a reflective circumferential wall extending between the apertures to reflect and mix light from the array of LED components. At least a portion of the circumferential wall of the reflector body has a polygonal cross-section taken normal to the optic axis, and at least a portion of the cross-section taken parallel to the optic axis includes segments of a curve joined one to the next to form a plurality of facets for reflecting light from the LED components to said exit aperture. Preferably, the segments of the curve included in the cross-section of the reflector body taken parallel to the optic axis are contiguous, linear trapezoidal facets.
Inventors:
Thomas M Marshall
Michael Day Pashley
Stephen Harman
Michael Day Pashley
Stephen Harman
Application Number:
JP2002551327A
Publication Date:
July 01, 2009
Filing Date:
December 06, 2001
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S10/02; F21V7/09; H01L33/00; H01L33/54; H01L33/60; H01L33/62; F21Y101/02
Domestic Patent References:
JP7036459U | ||||
JP2000058925A | ||||
JP2000269551A | ||||
JP2000294831A |
Foreign References:
WO2000058664A1 | ||||
US5723868 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Kenji Sugimura
Kiyoshi Kuruma
Kosaku Sugimura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Kenji Sugimura
Kiyoshi Kuruma
Kosaku Sugimura