PROJECTION VIDEO DISPLAY APPARATUS
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United States of America Patent
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Issued Date -
Jun 11, 2015
app pub date -
Nov 7, 2011
filing date -
Nov 7, 2011
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Abstract
A projection video display apparatus that maintains a highly reliable image quality while achieving high luminance of the apparatus is provided. The projection video display apparatus includes: a lens array for dividing light emitted from a light source into a plurality of luminous fluxes; a collecting lens for collecting light from the lens array; a color separating optical system for separating color light from the collecting lens; a video display element for forming an optical image from light separated by the color separating optical system; a projection lens for projecting the optical image; a cooling fan for cooling the video display element; a blower port arranged to supply air generated from the cooling fan from a lower part of the video display element; and a partition-wall duct arranged on a light-incident side of the video display element along a flow path of the air from the blower port.
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