Achromatic beam switch
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United States of America Patent
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Nov 9, 2004
Grant Date -
Apr 29, 2004
app pub date -
Oct 25, 2002
filing date -
Oct 25, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A light source with multiple parallel beams is combined with a pair of opposing mirrors mounted on a rotating fixture and with a fixed aperture to produce a single output beam. Through the motion of the rotating fixture, the pair of mirrors shifts the location of the output of each input beam passing through the device so as to sequentially channel each beam into the optical path defined by the aperture. Thus, the input source corresponding to the output beam may be quickly switched by rotating the pair of mirrors to the position that produces the appropriate shift of the beam selected from the light source. In another embodiment of the invention, the pair of opposing mirrors is replaced by a transparent block similarly mounted on a rotating fixture.
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