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US 8,025,409 B2Granted
Optical apparatus and projection display system
AssigneeSony Corporation
InventorsNao Kawamura, Nobuhiko Nishiki, Hideki Katsuragawa, Masayuki Shimizu, Takuya Hasegawa
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Abstract
An optical apparatus may include spectroscope means for splitting light irradiated from a light source into multiple color rays, polarizer means for polarizing the multiple color rays split by the spectroscope means, and trimming filters each trimming a wavelength component of at least one of the multiple color rays polarized through the polarizer means and guiding the resulting ray to an optical modulator, wherein at least one of the trimming filters is sloped about an optical axis.
Claims13
An optical apparatus comprising:
- spectroscope means for splitting light irradiated from a light source into multiple color rays;
- condensing means for condensing the multiple color rays split by the spectroscope means;
- and
- trimming filters each trimming a wavelength component of at least one of the multiple color rays condensed through the condensing means and guiding the resulting ray to an optical modulator
- wherein a space is provided around each trimming filter for purposes of venting heat and allowing the trimming filter to be sloped,
- wherein each trimming filter is provided on one side, a condensing means side, of a glass plate and an input polarizer is provided on the other side, a liquid crystal display side, of the glass plate such that the trimming filter and the input side polarizer are provided as one part, and
- wherein each of the trimming filters is sloped in both of two directions that are orthogonal to an optical axis.
4 more elements
A projection display system comprising:
- a light source;
- an optical apparatus that splits light irradiated from the light source into multiple color rays and guides them to optical modulators corresponding to the multiple color rays;
- synthesizing means for synthesizing the rays guided from the optical apparatus to the optical modulators corresponding to the color rays and modulated by the optical modulators;
- and
- a projection optical system that projects the light synthesized by the synthesizing means,
- wherein the optical apparatus has:
- spectroscope means for splitting light irradiated from the light source into multiple color rays;
- condensing means for condensing the multiple color rays split by the spectroscope means;
- and
- trimming filters each trimming a wavelength component of at least one of the multiple color rays condensed through the condensing means and guiding the resulting ray to an optical modulator
- wherein a space is provided around each trimming filter for purposes of venting heat and allowing the trimming filter to be sloped,
- wherein each trimming filter is provided on one side, a condensing means side, of a glass plate and an input polarizer is provided on the other side, a liquid crystal display side, of the glass plate such that the trimming filter and the input side polarizer are provided as one part, and
- wherein each of the trimming filters is sloped in both of two directions that are orthogonal to an optical axis.
10 more elements
An optical apparatus comprising:
- a spectroscope splitting light irradiated from a light source into multiple color rays;
- a condenser condensing the multiple color rays split by the spectroscope;
- and
- trimming filters each trimming a wavelength component of at least one of the multiple color rays condensed through the condenser and guiding the resulting ray to an optical modulator
- wherein a space is provided around each trimming filter for purposes of venting heat and allowing the trimming filter to be sloped,
- wherein each trimming filter is provided on one side, a condenser side, of a glass plate and an input polarizer is provided on the other side, a liquid crystal display side, of the glass plate such that the trimming filter and the input side polarizer are provided as one part, and
- wherein each of the trimming filters is sloped in both of two directions that are orthogonal to an optical axis.
4 more elements
A projection display system comprising:
- a light source;
- an optical apparatus that splits light irradiated from the light source into multiple color rays and guides them to optical modulators corresponding to the multiple color rays;
- a synthesizing section synthesizing the rays guided from the optical apparatus to the optical modulators corresponding to the color rays and modulated by the optical modulators;
- and
- a projection optical system that projects the light synthesized by the synthesizing section,
- wherein the optical apparatus has:
- a spectroscope splitting light irradiated from the light source into multiple color rays;
- a condenser condensing the multiple color rays split by the spectroscope;
- and
- trimming filters each trimming a wavelength component of at least one of the multiple color rays condensed through the condenser and guiding the resulting ray to an optical modulatory
- wherein a space is provided around each trimming filter for purposes of venting heat and allowing the trimming filter to be sloped,
- wherein each trimming filter is provided on one side, a condenser side, of a glass plate and an input polarizer is provided on the other side, a liquid crystal display side, of the glass plate such that the trimming filter and the input side polarizer are provided as one part, and
- wherein each of the trimming filters is sloped in both of two directions that are orthogonal to an optical axis.
10 more elements
Dependencies are inferred from the claim text.