PROJECTOR
First Claim
1. A projector, comprising:
- a light modulation part modulating light generated by a light source part;
a video signal processing part processing a video signal to be input; and
a projection optical system projecting the light modulated by said light modulation part onto an external projection target to obtain a projected video image, whereinsaid video signal processing part includes a blue light effect alleviating part alleviating effects of blue light on retinas, andin a case where among a red signal, a green signal, and a blue signal included in the video signal, only a ratio of said blue signal is high, said blue light effect alleviating part generates a blue light effect alleviating signal for controlling said light source part to reduce the brightness of said projected video image as a whole.
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Accused Products
Abstract
A projector includes a light modulation part modulating light generated by a light source part, a video signal processing part processing a video signal to be input, and a projection optical system projecting the light modulated by the light modulation part onto an external projection target to obtain a projected video image. The video signal processing part includes a blue light effect alleviating part alleviating effects of blue light on retinas. In a case where among a red signal, a green signal, and a blue signal included in a video signal, only a ratio of the blue signal is high, the blue light effect alleviating part generates a blue light effect alleviating signal for controlling the light source part to reduce the brightness of the projected video image as a whole.
14 Citations
27 Claims
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1. A projector, comprising:
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a light modulation part modulating light generated by a light source part; a video signal processing part processing a video signal to be input; and a projection optical system projecting the light modulated by said light modulation part onto an external projection target to obtain a projected video image, wherein said video signal processing part includes a blue light effect alleviating part alleviating effects of blue light on retinas, and in a case where among a red signal, a green signal, and a blue signal included in the video signal, only a ratio of said blue signal is high, said blue light effect alleviating part generates a blue light effect alleviating signal for controlling said light source part to reduce the brightness of said projected video image as a whole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification