Voltage detecting device
First Claim
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1. A voltage detecting device for a camera, comprising:
- (a) shutter control means for controlling the start of the running of a follower screen of a shutter by control of the power supply to an electromagnetic member;
(b) a voltage detecting circuit for detecting the voltage level of a power source voltage, said circuit performing the detection with connection to an electric load different from said electromagnetic member; and
(c) operating means for intermittently detecting the voltage by means of said voltage detecting circuit during a period of time from the start of the running of a leader screen of the shutter until the start of the running of the follower screen.
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Abstract
A voltage detecting device for a camera for detecting whether or not the voltage of a power source has a prescribed value or a value higher than the prescribed value. A device which makes intermittent voltage detections after the leader screen of a shutter starts running and terminates the voltage detecting action as the follower screen of the shutter runs.
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Citations
22 Claims
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1. A voltage detecting device for a camera, comprising:
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(a) shutter control means for controlling the start of the running of a follower screen of a shutter by control of the power supply to an electromagnetic member; (b) a voltage detecting circuit for detecting the voltage level of a power source voltage, said circuit performing the detection with connection to an electric load different from said electromagnetic member; and (c) operating means for intermittently detecting the voltage by means of said voltage detecting circuit during a period of time from the start of the running of a leader screen of the shutter until the start of the running of the follower screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A voltage detecting device for a camera, comprising:
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(a) shutter control means for controlling the start of the running of a follower screen of a shutter by control of the power supply to an electromagnetic member; (b) a voltage detecting circuit for detecting the voltage level of a power source voltage, said circuit performing the detection with connection to an electric load different from said electromagnetic member; and (c) operating means for intermittently detecting the voltage by means of said voltage detecting circuit during a period of time from the start of the running of a leader screen of the shutter until the start of the running of the follower screen; and wherein the electromagnetic member for the follower screen of the shutter in the shutter control means is of a type which starts said running by supplying power thereto. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification