Tag: "Optical Spectrum"

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Light and Infrared Irradiation in Cctv Systems

Over the past few years we have witnessed the appearance of day night CCTV cameras, all featuring a “miraculous” capability to amplify by many hundred folds the camera “minimum illumination” by removal of the IR cut filter and by turning off the color circuit. Usually, the day mode sensitivity ranges from 1 lux to 0.25 [...]