Arrangement for optical path length variation
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United States of America Patent
Stats
-
Oct 15, 1985
Grant Date -
N/A
app pub date -
Oct 16, 1981
filing date -
Dec 1, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an arrangement for varying the optical path length in an optical device without varying its overall dimensions comprising an entrance reflector and an exit reflector the planes of incidence of which are substantially arranged in one plane and the normals erected upon said planes are unidirectional, and an even number of deviating reflectors located between said entrance reflector and said exit reflector. The variation of the optical path length is realized by displacing the entrance reflector and the exit reflector uniformly in any, however, the same direction. A combination of individual arrangements is feasible.
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