Compact three-beam interferometer

Details Compact three-beam interferometer Compact three-beam interferometer

1976-06-11

1977-05-17

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

G01B 902

Patent

active

040239063

ABSTRACT:
An interferometer which retains the lateral vibration rejection capability of a three-beam interferometer and maintains a large work space between the beams while improving longitudinal vibration noise rejection. The system makes use of beam splitting assemblies which split the source laser beam into three beams and then recombine the beams. The recombination assembly includes wedges which introduce a small angle between the outer beams so that a small number of fringes are formed across the diameter of the beam.

REFERENCES:
patent: 3487227 (1969-12-01), Kinzly
Sica, "Three Beam Interferometer for the Observation of Kinetic Coolin in r", Applied Optics, vol. 12, No. 12, pp. 2848-2854, Dec. 1973.

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