77108554
Feb 15, 2007
Closed circuit television equipment for surveillance, namely infrared illuminators utilizing filters comprising micro-refractive material; micro-refractive filters for shaping illuminator beam patterns to efficiently utilize available light energy for surveillance; surveillance systems comprised of fixed and pan-tilt-zoom active night vision electronic cameras, infrared illuminators, micro-refractive filters, computer hardware and computer software for use in license plate reading, character recognition and processing related data
Electrical and Scientific Apparatus