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US 2012/0236264 A1Published application
Light source device and projector
AssigneeSeiko Epson Corporation
InventorKoichi AKIYAMA
Life of this patent
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Abstract
A light source device includes plural solid-state light sources, plural collimator lenses, a collection system, and a fluorescent layer that generates fluorescence from at least a part of the lights from the collection system, wherein at least one anamorphic surface is provided in an optical path from the plural collimator lenses to the fluorescent layer. The plural solid-state light sources are located in positions different from focal positions of the plural collimator lenses in an optical axis direction.
Claims18
A light source device comprising:
- plural solid-state light sources;
- plural collimator lenses that respectively nearly parallelize lights from the solid-state light sources;
- a collection system that collects the lights from the plural collimator lenses;
- and
- a fluorescent layer that generates fluorescence from at least a part of the lights from the collection system,
- wherein at least one anamorphic surface is provided in an optical path from the plural collimator lenses to the fluorescent layer, and
- the plural solid-state light sources are located in positions different from focal positions of the plural collimator lenses in an optical axis direction.
4 more elements
A projector comprising:
- an illumination device including the light source device according to claim B;
- a light modulation device that modulates light output from the illumination device;
- and
- a projection system that projects the light from the light modulation device.
1 more element
Dependencies are inferred from the claim text.