LIGHT SOURCE DEVICE, VIDEO PROJECTOR AND VIDEO PROJECTION METHOD
First Claim
1. A light source device comprising:
- a first light source configured to emit a first source light in a first wavelength range;
a source light modulator comprising a first face and a second face, the source light modulator further comprising a first area configured to diffuse and pass through the first source light to output a transmitted light from the first face, and a second area configured to reflect a reflected light excited by being irradiated by the first source light to output the reflected light from the second face; and
a second light source configured to emit a second source light in a second wavelength range that is different from the first wavelength range.
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Accused Products
Abstract
A light source device includes: a first light source configured to emit a first source light in a first wavelength range; a source light generator configured to generate, from the first light, a color-varying source light having time varying color; a second light source configured to emit a second source light in a second wavelength range that is different from the first wavelength range; and a light source controller configured to control driving timing for turning on and off each of the first light source and the second light source so as to cyclically select one of the color-varying source light and the second source light to be output as an output source light.
78 Citations
20 Claims
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1. A light source device comprising:
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a first light source configured to emit a first source light in a first wavelength range; a source light modulator comprising a first face and a second face, the source light modulator further comprising a first area configured to diffuse and pass through the first source light to output a transmitted light from the first face, and a second area configured to reflect a reflected light excited by being irradiated by the first source light to output the reflected light from the second face; and a second light source configured to emit a second source light in a second wavelength range that is different from the first wavelength range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A light source device comprising:
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a first light source configured to emit a first source light in a first wavelength range; a source light generator configured to generate, from the first light, a color-varying source light having time varying color; a second light source configured to emit a second source light in a second wavelength range that is different from the first wavelength range; and a light source controller configured to control driving timing for turning on and off each of the first light source and the second light source so as to cyclically select one of the color-varying source light and the second source light to be output as an output source light. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A video projection method for a video projector,
wherein the video projector comprises: -
a light source device comprising; first light source configured to emit a first source light in a first wavelength range; a source light generator configured to generate, from the first light, a color-varying source light having time varying color; and a second light source configured to emit a second source light in a second wavelength range that is different from the first wavelength range; a video interface configured to receive a video signal; and a projector unit configured to generate, from output source light output from the light source device, a color photo image in accordance with the video signal and project the color photo image, wherein the method comprises; controlling driving timing for turning on and off each of the first light source and the second light source so as to cyclically select one of the color-varying source light and the second source light to be output as the output source light.
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Specification