Proposed interferometer combination of sample-point interferometer and equal-path interferometer. Used to monitor optical figures of arrays of mirrors or of segmented mirrors. Incorporation of phase shifting with part of equal-path interferometer renders new interferometer insensitive to vibration and air turbulence. Instrument used over large distances, on ground, or on vibrating structures.
Equal-Path, Phase-Shifting, Sample-Point Interferometer
NASA Tech Briefs ; 15 , 4
01.04.1991
Sonstige
Keine Angabe
Englisch
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