Scientific, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision) apparatus and instruments, namely, laser diodes, lenses, radars, mirrors, thermal cameras, and video cameras; Apparatus for recording, transmission or reproduction of sound or images; Optical detectors; Electronic controllers; Computers; Laser pens; computer software and computer peripheral devices for laser pens and laser illumination; Laser sighting devices, namely, lasers, speakers, ...