Dual pyroelectric vidicon infrared camera
First Claim
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1. In a dual pyroelectric vidicon infrared camera, the combination comprising:
- (a) first and second pyroelectric vidicons,(b) means for receiving and alternately transmitting, infrared energy radiated from an object of interest to the target of said first vidicon and the target of said second vidicon,(c) circuit means connected to the output of said first and second vidicons for alternately inverting and summing the outputs of said vidicons,(d) whereby the sensitivity and the signal to noise ratio of said infrared camera is increased.
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Abstract
Two pyroelectric vidicons are adapted to alternately receive infrared ene radiated from an object by means of a rotating half circle mirror and fixed mirror arrangement. The alternations of the infrared energy received between the two vidicons are synchronized by means of a synchronization and drive circuit adapted to receive frame sync pulses from the camera circuitry. By this arrangement, information is received by the camera 100% of the time.
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Citations
7 Claims
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1. In a dual pyroelectric vidicon infrared camera, the combination comprising:
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(a) first and second pyroelectric vidicons, (b) means for receiving and alternately transmitting, infrared energy radiated from an object of interest to the target of said first vidicon and the target of said second vidicon, (c) circuit means connected to the output of said first and second vidicons for alternately inverting and summing the outputs of said vidicons, (d) whereby the sensitivity and the signal to noise ratio of said infrared camera is increased. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification