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20 February 1973 Performance Of Narrow-Field, Passive, Infrared Intrusion Detector
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Proceedings Volume 0033, Solving Problems in Security, Surveillance and Law Enforcement with Optical Instrumentation; (1973) https://doi.org/10.1117/12.953619
Event: Solving Problems in Security Surveillance and Law Enforcement with Optical Instrumentation, 1972, New York City, United States
Abstract
A passive intrusion detector has been developed which detects personnel, vehicles and other targets by means of the infrared radiation they emit. In its basic form, the in-strument monitors two side-by-side fields of view, and a target-to-background contrast of 0.1°C (or correspondingly more for targets smaller than the full field of view) actuates the system. Intrusion can be indicated by audio and visual alarm outputs. This paper will described several narrow field passive infrared intrusion detectors .
© (1973) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Frank Schwarz "Performance Of Narrow-Field, Passive, Infrared Intrusion Detector", Proc. SPIE 0033, Solving Problems in Security, Surveillance and Law Enforcement with Optical Instrumentation, (20 February 1973); https://doi.org/10.1117/12.953619
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