Optically coupled device with diffusely reflecting enclosure

Details Optically coupled device with diffusely reflecting enclosure Optically coupled device with diffusely reflecting enclosure

1975-05-01

1978-09-12

Larkins, William D.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250551, 357 70, 357 75, H01L 3114

Patent

active

041141776

ABSTRACT:
The disclosed optically coupled device includes one or more light emitting input semiconductor devices coupled by a transparent and electrically insulating medium to one or more output semiconductor devices which produce an electrical signal in response to the light received from the input device. Some such devices are known as opto-isolators or optically coupled isolators. In the disclosed devices the transparent medium is surrounded by a diffusely reflecting enclosure, which tends to make the device characteristics less sensitive to variations in fabrication. Efficient planar opto-isolator structures are disclosed.

REFERENCES:
patent: 3628039 (1971-12-01), Ochs et al.
patent: 3723747 (1973-03-01), Steele
patent: 3780357 (1973-12-01), Haitz
patent: 3818451 (1974-06-01), Coleman
patent: 3845318 (1974-10-01), Thillays

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