Light-measuring apparatus with lamp indicator for determining ba

Details Light-measuring apparatus with lamp indicator for determining ba Light-measuring apparatus with lamp indicator for determining ba

1974-10-18

1976-10-05

Borchelt, Archie R.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

315134, 340285, 356226, G01J 144, H01J 3912

Patent

active

039846768

ABSTRACT:
This invention relates to a light-measuring apparatus wherein a photoelectric element is arranged in a leg of a measuring bridge, the output voltage of said element controlling the brightness of two signal lamps.

REFERENCES:
patent: 3530378 (1970-09-01), Holle et al.
patent: 3794430 (1974-02-01), Maida
Electronic Indicator, article in Electronic Engineering, vol. 46, No. 554, Apr., 1974, p. 11.

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