| 摘要 |
PCT No. PCT/JP82/00456 Sec. 371 Date Jul. 29, 1983 Sec. 102(e) Date Jul. 29, 1983 PCT Filed Nov. 30, 1982 PCT Pub. No. WO83/02039 PCT Pub. Date Jun. 9, 1983.The present invention has for its object to provide a photo coupler which is operable with high sensitivity, high speed, low voltage and small current. To this end, a photo detector (13, 20, 33), which is coupled with one light emitting element (11, 21, 31) through a light transparent insulator, is formed by any one of a static induction transistor, field effect transistor and a static induction transistor. |
