Radiation emitter-detector package

Details Radiation emitter-detector package Radiation emitter-detector package

1977-08-17

1978-11-14

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Signal isolator

250239, 357 19, G02B 2700

Patent

active

041257774

ABSTRACT:
Mounted on the metallic base member of a radiation emitter-detector package is a mounting block having a first projection, and a second projection spaced from the first projection. A radiation detector is on the first projection and a semiconductor electroluminescent device, i.e., a radiation emitter, is on the second projection such that the plane of the recombination region of the electroluminescent device is substantially perpendicular to the radiation incident surface of the radiation detector. The electroluminescent device is of the type having a primary emission and a secondary emission in a direction different from the primary emission. A radiation emitter-detector package as described is ideally suited to those applications wherein the secondary radiation of the electroluminescent device is fed into a feedback circuit regulating the biasing current of the electroluminescent device.

REFERENCES:
patent: 3822384 (1974-07-01), Chapron
patent: 3893158 (1975-07-01), Lincoln

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