Showing papers on "Smart camera published in 1968"
Patent•
29 Nov 1968
TL;DR: In this article, a system for automatically maintaining the focus of a television camera in which the camera focus setting is modulated, preferably at half the frame or line scan frequency, and the camera video output passed through a high pass filter to a phase sensitive detector is presented.
Abstract: A system for automatically maintaining the focus of a television camera in which the camera focus setting is modulated, preferably at half the frame or line scan frequency, and the camera video output passed through a high pass filter to a phase-sensitive detector. The output of the detector is indicative of the magnitude and sense of the departure of the camera focus setting from sharp focus, and is used to control a focus servo.
15 citations
Patent•
04 Jun 1968
TL;DR: In this article, a remote controlled, sequence camera system for security purposes in banks and similar institutions is described, each camera featuring a self-contained power supply using a rechargeable battery, an extreme wide-angle lens with fixed focus and great depth of field, and a unique film drive system and circuitry incorporating unperforated roll film.
Abstract: A remote controlled, sequence camera system for security purposes in banks and similar institutions, each camera featuring a self-contained power supply using a rechargeable battery, an extreme wide-angle lens with fixed focus and great depth of field, and a unique film drive system and circuitry incorporating unperforated roll film One or more such cameras are connected into a single ''''digital readout panel'''' employing film counters, camera test circuits and a relay circuit which activates all cameras The relay circuit may be connected into standard bank alarm systems and be activated in turn from one or more remote locations Once activated, each camera continues to operate until shut off or until its film supply is exhausted A trickle charger connected into the readout panel maintains the battery in each camera
5 citations
01 Nov 1968
TL;DR: In this article, an automatic step-and-repeat camera for integrated circuit fabrication is described, which is capable of handling 1/4-mil dimensions as they appear in silicon integrated microcircuits.
Abstract: : The report describes an automatic step-and-repeat camera for integrated circuit fabrication. This step-and repeat camera has a continuously variable reduction ratio with final size and focus directly controlled in the camera. Any angular misalignment of the image is corrected without external instrumentation. The control system and other associated components were chosen to minimize cost. The camera is adequate for research laboratory where problems of high rate of mask production are not encountered. It is capable of handling 1/4-mil dimensions as they appear in silicon integrated microcircuits. (Author)