Optical apparatus and projection apparatus
AssigneeSony Corporation
InventorYoshihisa AIKOH
Life of this patent
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Abstract
Provided is an optical apparatus including a polarization separation element for separating an incident light beam into a first polarization component and a second polarization component and outputting the first polarization component and the second polarization component, a polarization conversion unit including a waveplate for converting one of the first polarization component and the second polarization component into the other polarization component, the waveplate being held to a holding metal plate, and a housing for holding the polarization separation element and the polarization conversion unit.
Claims9
An optical apparatus comprising:
- a polarization separation element for separating an incident light beam into a first polarization component and a second polarization component and outputting the first polarization component and the second polarization component;
- a polarization conversion unit including a waveplate for converting one of the first polarization component and the second polarization component into the other polarization component, the waveplate being held to a holding metal plate;
- and
- a housing for holding the polarization separation element and the polarization conversion unit.
A projection apparatus comprising:
- a light source;
- an optical apparatus for converting a polarization component of an incident light beam from the light source;
- a separation optical component for separating an output light from the light source according to wavelength bands;
- a plurality of optical modulation elements for optically modulating the incident light separated according to the wavelength bands;
- a synthesis optical component for synthesizing output lights from the plurality of optical modulation elements and outputting the resulting output light;
- and
- a projection unit for projecting and outputting the output light from the synthesis optical component,
- wherein the optical apparatus includes
- a polarization separation element for separating the incident light beam into a first polarization component and a second polarization component and outputting the first polarization component and the second polarization component,
- a polarization conversion unit including a waveplate for converting one of the first polarization component and the second polarization component into the other polarization component, the waveplate being held to a holding metal plate, and
- a housing for holding the polarization separation element and the polarization conversion unit.
Dependencies are inferred from the claim text.