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Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
optical inspection system for semiconductor wafers in various stages of processing, said system comprised of imaging cameras, optical filters, control computer, and monochromatic illumination source comprised of laser and led light sensors, the foregoing used to illuminate semiconductor wafers by ultra violet, infra-red and visible light, and thereby to acquire a spatial or spatial/spectral image of the band-edge luminescence emitted by the wafer using an imaging camera