Projector
First Claim
1. A projector, comprising:
- an illumination optical system including a light source device;
an electro-optical device for modulating light from the illumination optical system in response to image information;
a projection optical system for projecting modulated light obtained with the electro-optical device; and
a base frame, formed using material including metal material, for mounting all optical components arranged on an optical path from the illumination optical system to the projection optical system excluding the light source device, wherein at least one of the optical components is a polarization control component comprising;
a polarization control element including organic material for controlling polarization state of light exiting from the polarization control element; and
a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·
K), to which the polarization control element is stuck, and wherein the light-transmissive member and the base frame are thermally coupled.
1 Assignment
0 Petitions
Accused Products
Abstract
This invention provides a technique of reducing temperature rise due to heat generation of polarization control elements. A projector includes: an illumination optical system; an electro-optical device for modulating light from the illumination optical system in response to image information; a projection optical system for projecting modulated light obtained with the electro-optical device and a base frame, formed using material including metal material, for mounting a plurality of optical components arranged on an optical path from the illumination optical system to the projection optical system. At least one of the plurality of optical components is a polarization control component that includes: a polarization control element including organic material for the controlling polarization state of light exiting from the polarization control element; and a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·K), to which the polarization control element is stuck. The light-transmissive member and the base frame are thermally coupled.
40 Citations
28 Claims
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1. A projector, comprising:
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an illumination optical system including a light source device;
an electro-optical device for modulating light from the illumination optical system in response to image information;
a projection optical system for projecting modulated light obtained with the electro-optical device; and
a base frame, formed using material including metal material, for mounting all optical components arranged on an optical path from the illumination optical system to the projection optical system excluding the light source device, wherein at least one of the optical components is a polarization control component comprising;
a polarization control element including organic material for controlling polarization state of light exiting from the polarization control element; and
a light-transmissive member having a thermal conductivity of at least about 0.8 W/(m·
K), to which the polarization control element is stuck,and wherein the light-transmissive member and the base frame are thermally coupled. - 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, 28)
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Specification