Light energy control system and method of operation
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United States of America Patent
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-
Mar 31, 1992
Grant Date -
N/A
app pub date -
Dec 21, 1989
filing date -
Dec 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed a light energy management system for use in conjunction with, in one embodiment, the exposure unit of a xerographic reproduction system. The light management system serves to funnel the unmodulated light for proper impact on a modulating device and to maintain the dark effect of the device when in the unmodulated mode. Light baffles are used for this purpose, some of which are formed as a series of angular steps designed to eliminate unwanted light along the longitudinal axis of the modulated light path. The angular step, in one embodiment, takes the shape of a semi-circular bee thorax. The modulated light path includes a light focus lens and a pair of mirrors for sending the modulated light pulses to the reproduction process surface.
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Cited Art Landscape
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