Optical coupler

Details Optical coupler Optical coupler

1976-07-01

1977-09-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

357 19, G02B 2700

Patent

active

040470458

ABSTRACT:
Disclosed is an optical coupler apparatus comprising a photo-emissive device and a photo-sensitive device responsive to the wavelengths emitted by the source. The devices are mounted on frame leads with their major faces opposed and spaced apart. The optical devices and a substantial portion of the supporting frame leads are then encapsulated in a molded body of substantially electrically non-conductive material which is substantially transparent to the operative wavelengths of the optical devices.The transparent material not only fills the space between the optical devices but also provides structural support for the leads. The transparent material is then covered with an opaque coating or an additional body of opaque material molded over the body of transparent material.

REFERENCES:
patent: 3639770 (1972-02-01), Zizelmann
patent: 3660669 (1972-05-01), Grexon
patent: 3893158 (1975-07-01), Lincoln
patent: 3976877 (1976-08-01), Thillays

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