Semiconductors; semiconductor lasers; laser diodes; light emitting diodes; component parts for movie, multimedia, photographic, picture, and slide projectors, namely, lasers that transform electric energy into red and/or green and/or blue light for use in projectors for displaying images; semiconductor lasers to be installed in electronic devices for producing light; movie, multimedia, photographic, picture and slide projectors; electric remote-controlled light dimmers; lighting controls