Abstract An electrically operated extrinsic coordinating system for the light metering and exposure controlling circuits of a photographic camera, the camera also having incorporated therein an intrinsic coordinating system for those circuits, comprises first and second electronic switches connected in the respective power supply circuits for the light metering and exposure controlling circuits through respective interconnection channels to shunt the first and second switches of the intrinsic coordinating system, a delay circuit connected between the first and second electronic switches, and an operating switch arranged to be accessible from the outside of the camera and cooperative with the first electronic switch upon manual closure of the operating switch to actuate the light metering and exposure controlling circuits for the power supply in predetermined time-displaced relation to each other independently of the intrinsic coordinating system.
In a camera having a light metering circuit and an exposure controlling circuit responsive to the output of said light metering circuit for controlling actuation of means for determining exposure of photographic film, a coordinating system for those portions of said camera comprises; a. first electronic switch means connected in a power supply circuit for said light metering circuit, b. second electronic switch means connected in a power supply circuit for said exposure controlling circuit, c. electrical delay means connected between said first and said second electronic switch means, and d. an operating switch accessible from the outside of the housing of said camera and arranged upon closure to actuate said first electronic switch, whereby the actuation of said exposure controlling circuit is controlled in predetermined time-displaced relation to that of said light-metering circuit.
Claim 2
Dependent Claim
134 words
In a camera having a light metering circuit and an exposure controlling circuit responsive to the output of said light metering circuit for controlling actuation of means for determining exposure of photographic film, a coordinating system for those portions of said camera comprises; a. first electronic switch means connected in a power supply circuit for said light metering circuit, b. second electronic switch means connected in a power supply circuit for said exposure controlling circuit, c. electrical delay means connected between said first and said second electronic switch means, and d. an operating switch accessible from the outside of the housing of said camera and arranged upon closure to actuate said first electronic switch, whereby the actuation of said exposure controlling circuit is controlled in predetermined time-displaced relation to that of said light-metering circuit.