Comb-shaped polarizing device
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United States of America Patent
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Feb 16, 1988
Grant Date -
N/A
app pub date -
Mar 20, 1986
filing date -
Mar 20, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A comb-shaped polarizing device for use in a laser is compact, inexpensive and easily adjusted. The device includes an annular member having a number of comb-shaped teeth projecting opposite similarly shaped teeth from a rectangular aperture. The comb-shaped teeth are arranged in a plane transversing a laser beam which is under oscillation. Cooling water passages are formed in the annular member. In one embodiment the annular member is provided at its periphery with gear teeth which mate with a motor for selection of the direction of polarization of the laser beam.
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