ILLUMINATION SYSTEM FOR SPOT ILLUMINA
First Claim
1. An illumination system for spot illumination, the system comprising:
- a tubular reflector having a reflective inner surface, an entrance aperture and an exit aperture being larger than the entrance aperture; and
a light-source array comprising a plurality of light-sources arranged to emit light into the tubular reflector at the entrance aperture thereof, wherein at least one of said light-source array and said tubular reflector is configured in such a way that each symmetry state of said light-source array is different from any symmetry state of said tubular reflector.
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Accused Products
Abstract
An illumination system (10) for spot illumination comprising a tubular reflector (2) with a reflective inner surface, the tubular reflector (2) having an entrance aperture (7) and an exit aperture (8) being larger than the entrance aperture (7); and a light-source array (1) comprising a plurality of light-sources (13a-c; 30a-d, 31a-d, 32a-d) arranged to emit light into the tubular reflector (2) at the entrance aperture (7) thereof. At least one of the tubular reflector (2) and the light-source array (1) is configured in such a way that each symmetry state of the light-source array (1) is different from any symmetry state of the tubular reflector (2). By avoiding coinciding symmetry states, the occurrence of preferred directions of the emitted light can be reduced, whereby the spatial homogeneity with respect to intensity and, where applicable, color of the emitted light can be improved.
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Citations
14 Claims
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1. An illumination system for spot illumination, the system comprising:
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a tubular reflector having a reflective inner surface, an entrance aperture and an exit aperture being larger than the entrance aperture; and a light-source array comprising a plurality of light-sources arranged to emit light into the tubular reflector at the entrance aperture thereof, wherein at least one of said light-source array and said tubular reflector is configured in such a way that each symmetry state of said light-source array is different from any symmetry state of said tubular reflector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification