Camera with focal plane shutter

Details Camera with focal plane shutter Camera with focal plane shutter

1982-09-15

1983-10-04

Gellner, Michael L.

354 56, 354154, 354246, G03B 7089, G03B 936, G03B 1912

Patent

active

044075740

ABSTRACT:
In a camera of the type which is provided with a focal plane shutter having a group of opening blades and a group of closing blades and a light receiving element for metering the light transmitted through a photographing lens, the improvement comprises an additional light shielding member provided in the path of photographing light on the front side of the focal plane shutter relative to the transmitted light. The light shielding member is so disposed as to be able to reflect the photographing light toward the light receiving element. Retracting means brings the light shielding member to a position out of the photographing light path prior to exposure.

REFERENCES:
patent: 3999196 (1976-12-01), Inoue
patent: 4141634 (1979-02-01), Inoue
patent: 4181412 (1980-01-01), Holle et al.
patent: 4226516 (1980-10-01), Tsunekawa

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