Light scanning device with polarizing device to make light transmission more uniform
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United States of America Patent
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-
Apr 23, 1991
Grant Date -
N/A
app pub date -
Dec 31, 1987
filing date -
Jan 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A light scanning device comprising a light source portion equipped with a semiconductor laser, a deflecting system for deflecting light beam emitted by the light source portion, a scanning lens for imaging light beam deflected by the deflecting system on a subject to be scanned, and a polarizing device for changing a polarized state of light beam so that the vibrating plane of an electric field vector of light beam entering into the scanning lens does not become perpendicular to a plane of incidence which includes an optical axis of the scanning lens and an incident direction of the light beam.
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