Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1984-11-05
1986-09-02
Fields, Carolyn E.
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250339, 356352, G01B 902
Patent
active
046098224
ABSTRACT:
A rugged Fabry-Perot interferometer comprises a solid etalon (15) made of single-crystal silicon with precisely parallel stacks (13) and (14) of dielectric materials coated on opposite sides thereof. The stacks (13) and (14) are identical to each other, and each stack comprises a plurality of layers of different materials having alternately high and low indices of refraction. A dielectric ring (30) made of the same material as the etalon (15) is bonded to a peripheral portion of one side of the etalon (15) by an epoxy material having the same coefficient of thermal expansion as the ring (30) and the etalon (15). The ring (30) with the etalon (15) bonded thereto is kinematically mounted on Teflon contact members (34) within an annular receiving structure (31) made of a metal (such as copper) of high thermal conductivity. Teflon contact members (39) on spring members (37), which are secured to the receiving structure (31), bear compressively against a peripheral portion of the other side of the etalon (15) to secure the etalon (15) within the receiving structure (31). Thermal equilibrium between the etalon (15) and the receiving structure (31) is provided by copper braids (40).
REFERENCES:
William Wolfe, editor, "Handbook of Military Infrared Technology", Office of Naval Research, 1965, pp. 288-289.
Roche, "Tilt Tunable Ultra Narrow-Band Filters for High Resolution Infrared Photometry", Applied Optics, 14 (3) Mar. 1975, pp. 765-770.
Roche, "Solid Fabry-Perot Etalons as High Resolution Infrared Interferometers", Proc. Soc. Photo-Optical Instr. Eng., SPIE, 95, 1976, pp. 196-203.
Roche et al, "Performance Analysis for the Cryogenic Etalon on the Upper-Atmospheric Research Satellite", Proc. Soc. Photo-Optical Instr. Eng., 364, 1982, pp. 46-55.
Roche et al, "Telescope-Optical System Performance Analysis for the Cryogenic Limb Array Etalon Spectrometer (CLAES) on the Upper Atmospheric Research Satellite; Proc. Soc. Photo-Optical Instru. Eng., 430, Nov. 23, 1983, pp. 106-114.
Fields Carolyn E.
Lockheed Missiles & Space Company Inc.
Morrissey John J.
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