Satellite Imaging of the Earth 1976

Air bearing laser-scanner spindles and film transports built by Professional Instruments Company bring unprecedented clarity to the digital images. Mirrors (cut on air bearing lathes developed by Professional Instruments Company) spin at 40,000 rpm as the film smoothly advances completely eliminating “banding”, “raster lines”, and other mechanical phenomena that obscure the fine details. The enhanced clarity revolutionized both commercial and millitary intelligence use of earth images.