H - Electricity – 01 – J
Patent
H - Electricity
01
J
347/32
H01J 40/02 (2006.01) G01J 1/42 (2006.01)
Patent
CA 1114935
PHOTODETECTOR HEAT STABILIZER ABSTRACT OF THE DISCLOSURE temperature sensitive photodetectors are temperature stabilized by coupling the photocathode of a photodetector in heat exchange relationship to a heated casting which acts as a heat source for the photocathode. The photocathode is coupled to the casting by a metallic Z-shaped bracket positioned on an insulating block with one base of the z being coupled to the photocathode and the other base being coupled to a metal box through a Mylar insulating spacer, the box being directly mounted on the casting. A printed circuit board associated with the photodetector is also mounted on the insulating block. The direct heat path from the heated casting through the Z-shaped bracket to the photocathode reduces the warm up time of the photodetector thereby more rapidly temperature stabilizing the photodetector.
342727
Demey Charles F.
Helms Charles C.
Osler Hoskin & Harcourt Llp
Perkin-Elmer Corporation The
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