Title:
照明システム
Document Type and Number:
Japanese Patent JP4944884
Kind Code:
B2
Abstract:
The illumination system has an array of light sources (1, 1′, . . . ) such as an array of light emitting diodes arranged in a pre-determined manner in a first plane (11), wherein dsource is a characteristic dimension of the spatial arrangement of the light sources in the first plane. An array of associated lenses (2, 2′, . . . ) is arranged in substantially the same pre-determined manner in a second plane (12). Each lens has substantially the same focal distance flens. The array of lenses is provided at a plane distance dplane from the array of light sources. The plane distance dplane is substantially equal to the focal distance flens of the lenses. The illumination system has displacement means for displacing the array of lenses with respect to the array of light sources so as to obtain a plurality of directional light beams projecting spots on a projection plane arranged at a projection distance dprojection from the illumination system, wherein dprojection≧10×dsource and dprojection≧10×dplane.
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Inventors:
Belfman Antony Har
Cortenrad Hubertus MEL
Deswald seabed
Fissenberg Michel Michelle Em
Cortenrad Hubertus MEL
Deswald seabed
Fissenberg Michel Michelle Em
Application Number:
JP2008521011A
Publication Date:
June 06, 2012
Filing Date:
July 10, 2006
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21S2/00; F21K99/00; F21S10/00; F21S10/02; F21V5/04; F21V14/06; F21Y101/02
Domestic Patent References:
| JP2004341107A | ||||
| JP2004221042A | ||||
| JP61193603U | ||||
| JP2002304903A | ||||
| JP62152303U |
Attorney, Agent or Firm:
Sadao Kumakura
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato
Fumiaki Otsuka
Shishido Kaichi
Disciple Maru Ken
Ino Sato