Fleit, Jacobson, Cohn & Price
Optical function semiconductor device
 An optical function semiconductor device formed by opto-electrical loop coupling of a light emitting diode and a photodetector, the latter of which receives a part of an output light of the former controlled by an output current thereof, can be readily miniaturized and integrated as a fundamental function active device self-containing a light source and presenting various useful novel functions of the optoelectronic technology between the external input and the output lights. 
Tohoku University
G H H
G02F H03K H03K
inventional inventional inventional
Humio Yoh Hiromasa
Inaba Ogawa Ito