Absolute radiometric detector

Details Absolute radiometric detector Absolute radiometric detector

1983-02-02

1985-02-05

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356222, G01J 142

Patent

active

044980124

ABSTRACT:
A visible spectrum radiation measuring apparatus achieving an absolute measurement utilizing a plurality of inversion layer silicon photodiodes in a configuration wherein light reflected from the surface of a photodiode impinges on another photodiode, and its respective reflected light impinges on another photodiode, such that each time the light impinges on a photodiode surface a portion is absorbed, and that ultimately most of the light of the beam being measured is absorbed.

REFERENCES:
patent: 3622245 (1971-11-01), Rasmussen
patent: 4242581 (1980-12-01), Crow

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