Photocoupling device

摘要

A photo-coupler for electricity-light-electricity conversion comprising: (1) a light emitting part; (2) a photosensing device comprising a plurality of photosensing elements electrically connected in series in a light receiving surface of an insulating substrate, said photosensing elements being radially arrayed in said light receiving surface; and (3) a light guiding means optically coupling said light emitting part and said photosensing device, whereby light is emitted from said light emitting part and directed through said light guiding means to said photosensing device to generate a photoelectric conversion output.