Fluid thermal compensation system

Details Fluid thermal compensation system Fluid thermal compensation system

1988-09-29

1990-04-24

Arnold, Bruce Y.

350255, G02B 702

Patent

active

049195190

ABSTRACT:
A system for adjustably locating a lens (16, 18) as a function of the temperature of the lens, comprising a housing (12) and a lens mount (14) which is movable in an aperture in said housing in an axial direction, the lens being mounted in the lens mount. An axially extending chamber is defined between a radial surface of a radially extending portion (34) of the housing and a radial surface (32) of a radially extending portion (22) of the lens mount. A fluid is accommodated in the chamber, the fluid having variable volume as a function of temperature, such that the distance between the two radial surfaces, and thereby the location of the lens, is variable as a function of the temperature of the fluid.

REFERENCES:
patent: 3498695 (1970-03-01), Brouwer
patent: 3612664 (1971-10-01), Berman
patent: 4286839 (1981-09-01), Ilzig et al.
patent: 4525745 (1985-06-01), Ghaem-Maghami et al.

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