Radiant energy – Photocells; circuits and apparatus – Temperature control of photocell
Patent
1986-02-20
1987-06-09
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Temperature control of photocell
250352, 62514R, G01T 116
Patent
active
046722025
ABSTRACT:
The invention is an adjustable mount for positioning an electro-optic transducer in an evacuated cryogenic environment. Electro-optic transducers are used in this manner as high sensitivity detectors of gas emission lives of spectroscopic analysis. The mount is made-up of an adjusting mechanism 10 and a transducer mount 20. The adjusting mechanism provided five degrees of freedom, 3 linear adjustments and 2 angular adjustments. The mount allows the use of an internal lens 66 to focus energy on the transducer element thereby improving the efficiency of the detection device. Further, the transducer mount 20, although attached to the adjusting mechanism 10, is isolated thermally such that a cryogenic environment can be maintained at the transducer while the adjusting mechanism 10 remains at room temperature. Radiation shields 68 also are incorporated to further reduce heat flow to the transducer location.
REFERENCES:
patent: 3601611 (1971-08-01), Kendall, Sr.
patent: 3713560 (1973-01-01), Slysh et al.
Crossley, Jr. Edward A.
Haynes David P.
Jones Howard C.
Jones Irby W.
Allen S.
Helfrich George F.
Manning John R.
Nelms David C.
The United States of America as represented by the Administrator
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