Solar radiation sensor housing with slanted photodetector and kn

Details Solar radiation sensor housing with slanted photodetector and kn Solar radiation sensor housing with slanted photodetector and kn

1991-08-01

1992-10-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Housings

250216, 359599, H01J 502

Patent

active

051534290

ABSTRACT:
A solar radiation sensor of the type including a case, a filter provided on an upper surface of the case, and a photodetector disposed in the case for detecting the quantity of solar radiation coming through the filter, wherein the filter has a knurled inside surface for irregularly reflecting incident light, and the photodetector has a light-receiving surface extending obliquely at a predetermined angle of inclination whereby a proper sensitivity to oblique incident light can be maintained even when the sensor is mounted on a flat surface.

REFERENCES:
patent: 2978591 (1961-04-01), Ringger
patent: 3274392 (1966-09-01), Harling
patent: 3671101 (1972-06-01), Finch

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