9 Electro-optical devices to measure or manage light, namely, streak cameras, streak camera accessories, namely, slit assembly, front end image relay optics, streak tube, cathode power supply, ramp module, and image sensors, laser beam analyzers, data processing equipment in the nature of frame-grabber boards, gas puffer electrical controllers, laboratory equipment in the nature of lever lock post holders, laboratory equipment in the nature of locking key slide base plates, laboratory equipment in the nature of interlocking light shields, laboratory equipment in the nature of indexed multiple slit sliders, laboratory equipment in the nature of partially indexed multiple slit sliders, master trigger systems, comprised of potentiometers, power supplies, voltage data acquisition devices, delay generators to change internal delays to compensate for different scan speeds, and software to read potentiometer voltage and communicate with delay generator, image relay lens system comprised of camera lens, shutter, bellows, mounting slide rods, and shutter enclosure, opto-mechanical positioning components for high speed cameras and streak cameras, namely, opto-mechanical hardware and hardware devices for use in laser positioning for non-medical purposes