Radiant energy – Photocells; circuits and apparatus – Signal isolator
Patent
1977-09-06
1978-09-05
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Signal isolator
357 19, G02B 2700
Patent
active
041123085
ABSTRACT:
An optical coupling system is described incorporating a light emitting semiconductive device mounted on a substrate having an electrically conductive strip leading to and from the device. A plurality of photo detector, semiconductive devices are mounted on the substrate adjacent to and co-planar with the light emitting device. A housing is mounted over the semiconductive devices and is filled with a clear light transmitting resin; the interior surfaces of the housing are light reflecting so that light emitted by the light emitting semiconductive device is reflected and diffused therefrom impinging upon each of the photo detector, semiconductive devices.
REFERENCES:
patent: 3818451 (1974-06-01), Coleman
patent: 3976877 (1976-08-01), Thillays
patent: 4005312 (1977-01-01), Lemelson
patent: 4054801 (1977-10-01), Breval et al.
Olschewski Wilfred W.
Stitt Robert M.
Burr-Brown Research Corporation
Nelms David C.
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