Opto electronic components, namely, photo diodes, photo transistors, photo interrupters, photo couplers, and infrared emitting diodes; infrared receiver modules consisting of photodiodes and preamp integrated circuits; integrated circuits; [ fiber optic communication devices consisting of light emitting diodes, photodiodes and optic fibers; ] infrared wireless communication devices consisting of infrared emitting diodes and PIN photodiodes; [laser diodes; laser detectors for optical pickup tools in CD/DVD drives;] encoders; electronic transistors; electronic notice boards; rectifiers [and microprocessors]