Release apparatus for a camera
First Claim
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1. A release apparatus for a camera, comprising:
- (a) detecting means for detecting a change of temperature within an image plane of the camera in response to an increase in said temperature to produce a first signal, and in response to a decrease in said temperature to produce a second signal;
(b) trigger signal forming means for producing a trigger signal in a prescribed time from the production of said first signal and, when said second signal is produced before said prescribed time has elapsed, prohibiting said trigger signal from being produced; and
(c) means responsive to said trigger signal for performing a release operation of the camera.
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Abstract
A release apparatus for a camera having a temperature sensor adapted particularly to detect a change of the temperature of an image in the picture frame. As an object, such as a man or an animal, comes to enter a target area of the sensor, when the temperature of the area of the picture frame changes, a shutter of the camera is released, or an operation of an auto-focus device is initiated, by the output of the temperature change detector.
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Citations
5 Claims
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1. A release apparatus for a camera, comprising:
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(a) detecting means for detecting a change of temperature within an image plane of the camera in response to an increase in said temperature to produce a first signal, and in response to a decrease in said temperature to produce a second signal; (b) trigger signal forming means for producing a trigger signal in a prescribed time from the production of said first signal and, when said second signal is produced before said prescribed time has elapsed, prohibiting said trigger signal from being produced; and (c) means responsive to said trigger signal for performing a release operation of the camera. - View Dependent Claims (2, 3, 4)
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5. A release apparatus for a camera, comprising:
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(a) detecting means for detecting a change of temperature within an image plane of said camera in response to an increase in said temperature to produce a first signal, and in response to a decrease in said temperature to produce a second signal; (b) trigger signal forming means for producing a trigger signal in a prescribed time from the production of said first signal, and, when said second signal is produced before said prescribed time has elapsed, for producing said trigger signal in response to said second signal; and (c) means responsive to said trigger signal for performing a release operation of the camera.
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Specification