Appeal No. 1999-1891
Application No. 08/421,089
The disclosed invention relates to a two element
photocoupler, including an amorphous semiconductor thin film
light emitting diode capable of emitting light in response to
electrical stimuli and an amorphous semiconductor photovoltaic
light detecting means adapted to detect emitted from the thin
film light emitting diode. The light emitting diode comprises
a first thin film electrode, a plurality of amorphous
semiconductor thin films, an optically transparent second thin
film electrode, and an optically transparent substrate,
arranged in a sandwich type manner. This arrangement allows
for emission of light through the optically transparent
substrate when the light emitting diode is electrically
stimulated. The photovoltaic light detecting means comprises
a first thin film electrode, a plurality of amorphous
semiconductor thin films, an optically transparent second thin
film electrode, and an optically transparent substrate,
arranged in a sandwich manner, which also is described having
the order listed. The optically transparent substrates of
both the light emitting diode and the light detecting means
are adapted to face each other with a spatial predetermined
answer at page 1.
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