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 JP4705132
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:
JP2008184176A
Publication Date:
June 22, 2011
Filing Date:
July 15, 2008
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21V7/09; F21S2/00; F21S8/04; F21S10/02; F21V3/00; F21V3/04; F21V7/00; H01L33/00; H01L33/54; H01L33/60; H01L33/62; F21Y101/02
Domestic Patent References:
| JP736459U | ||||
| JP200058925A | ||||
| JP2000269551A | ||||
| JP2000294831A |
Foreign References:
| WO2000058664A1 | ||||
| US5723868 |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Disciple Maru Ken
Ino Sato