Air spaced etalon with mechanism for adjusting parallelism of re

Details Air spaced etalon with mechanism for adjusting parallelism of re Air spaced etalon with mechanism for adjusting parallelism of re

1976-08-11

1979-05-01

Clark, Conrad J.

Oscillators

Molecular or particle resonant type

356352, H01S 300

Patent

active

041526740

ABSTRACT:
An air spaced etalon for wavelength selection including a spacer comprised of two hollow cylindrical members abutting each other in end-to-end aligned relation. A high degree of parallelism of two seconds or less can be easily obtained between the opposite end surfaces of the compound spacer by adjusting the relative angular position of the spacer members irrespective of the parallelism of the end surfaces of the individual spacer members. This enables production of high performance etalons with reduced cost and high yield.

REFERENCES:
patent: 2137286 (1938-11-01), Herbig
patent: 3771066 (1973-11-01), Burgwald et al.
patent: 3936193 (1976-02-01), Auth
patent: 4037942 (1977-07-01), Guyer

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