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
1991-04-01
Miscellaneous
No indication
English
Present status of the ASET at-wavelength phase-shifting point diffraction interferometer [4146-05]
British Library Conference Proceedings | 2000
|Design of a 24-in. phase-shifting interferometer [2870-66]
British Library Conference Proceedings | 1996
|Design of a 24-in. phase-shifting Fizeau interferometer [2860-50]
British Library Conference Proceedings | 1996
|Phase-shifting interferometer using self-pumped phase conjugator with BaTiO~3 [3137-38]
British Library Conference Proceedings | 1997
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