Projection type display apparatus, rear projector and multi-vision system
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United States of America Patent
Stats
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Aug 14, 2007
Grant Date -
Jan 18, 2007
app pub date -
Sep 20, 2006
filing date -
Oct 1, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention provides a small projection type display apparatus capable of suppressing an optical path of incident light and an optical path of output light in a reflection type light valve from being overlapped with each other and obtaining a projected image of high quality; a rear projector and a multi-vision system using the same. The lens element 5 is composed of one piano-convex lens, and is placed between the reflection type light valve and the projection lens system with a convex surface directed to the projection lens system. The illumination light passes through the lens element to illuminate the reflection type light valve, and the modulated light output from the reflection type light valve passes through the lens element to be incident upon the projection lens system.
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Family
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Cited Art Landscape
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