Light measuring device

Details Light measuring device Light measuring device

1986-03-12

1987-07-21

Adams, Russell E.

354471, 354478, G03B 300

Patent

active

046814205

ABSTRACT:
The disclosed light measuring arrangement is positioned to receive and measure light from a focusing screen on which a display of focusing conditions is superimposed. A correcting circuit corrects the object brightness sensed by the light measuring arrangement. When display segments of the display are selectively switched on and off, the correcting circuit produces an output signal representing a corresponding brightness correction factor which is applied to the light measuring arrangement.

REFERENCES:
patent: 3860936 (1975-01-01), Harvey
patent: 4035815 (1977-07-01), Takahashi
patent: 4146319 (1979-03-01), Numata et al.
patent: 4361390 (1982-11-01), Yamada

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