Pixel-shifting projection lens assembly to provide optical interlacing for increased addressability
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United States of America Patent
Stats
-
Feb 27, 2007
Grant Date -
Jun 23, 2005
app pub date -
Dec 23, 2003
filing date -
Dec 23, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection display system includes a projection lens assembly that has multiple projection lens elements that are configured to receive light imparted with display information by a pixelated display device. The projection lens elements project the light toward a display screen. A pixel-shifting element is included within the projection lens assembly to cyclically shift between at least two positions within the projection lens assembly to form at a display screen at least two interlaced arrays of pixels. An electro-mechanical transducer is coupled to the pixel-shifting element to impart on it the cyclic shifting between positions.
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