Electronic photometer with two variable indicators

Details Electronic photometer with two variable indicators Electronic photometer with two variable indicators

1975-12-11

1977-05-17

Corbin, John K.

Optics: measuring and testing

Photometers

Photoelectric

356230, 354 60L, G01J 142

Patent

active

040239101

ABSTRACT:
There is disclosed an evaluating circuit for use with a photoelectric transducer and an electronic photometer. The photometer comprises indicators, all of which are variable, and comprises a combining device arranged to combine by an inverse computing operation.

REFERENCES:
patent: 3436158 (1969-04-01), Schmitt
patent: 3516750 (1970-06-01), Schmitt
patent: 3529897 (1970-09-01), Pfaffenberger
patent: 3597095 (1971-08-01), Fukushima
patent: 3638114 (1972-01-01), Finley

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