Display system with means for variably deflecting an array of optical emitters
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United States of America Patent
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-
Jan 19, 1993
Grant Date -
N/A
app pub date -
Aug 21, 1991
filing date -
Sep 5, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An imager comprises a lens 31 focusing radiation onto a sensor array 32, and a chopper comprising sectors which refract radiation in different directions such that an image is microscanned upon the sensor array 32. The chopper 4 is driven by motor 34 which also drives a polygon 37. The sensor array is read line by line and displayed on a linear array of LEDs 36 which appear to an observer observing through eye piece 38 as a complete two dimensional image as seen by the sensor ray 32. This is due to the persistence vision. Each facet of the polygon 37 is cut such that it compensates for the offset produced by the microscan.
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