Appeal No. 1999-1891
Application No. 08/421,089
separation. A further understanding of the invention can be
achieved by the following claim.
4. A photocoupler including:
an amorphous semiconductor thin film light emitting diode
capable of emitting light in response to an electric stimuli;
an amorphous semiconductor photovoltaic light detecting
means adapted to detect the emitted light of the thin film
light emitting diode;
said light emitting diode comprising of 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, such an arrangement allowing emission of light through
the optically transparent substrate when the light emitting
diode is electrically stimulated; and
said photovoltaic light detecting means comprising of 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, the optically transparent
substrates of both the light emitting diode and the light
detecting means adapted to face each other with a spatial
predetermined separation.
The examiner relies on the following references:
Hamakawa et al. (Hamakawa) 4,499,331 Feb. 12,
1985
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007