Two-beam interferometer for Fourier spectroscopy with rigid pendulum
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United States of America Patent
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May 17, 1983
Grant Date -
N/A
app pub date -
Feb 10, 1981
filing date -
Feb 14, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A two-beam interferometer for Fourier spectroscopy includes a rigid pendulum structure mounting at least one of the movable retroreflectors in a fully compensated optical system immune to tilt and lateral movement distortions. The swing of the rotatably journaled pendulum accurately confines the retroreflector(s) to movement in a single plane during scanning and, due to the low heat generated in the pendulum bearings, the simple and compact structure is well adapted to be housed in a cryostat aboard a spacecraft.
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