Phototrigger thyristor

Details Phototrigger thyristor Phototrigger thyristor

1996-05-21

1998-12-08

Fahmy, Wael

Active solid-state devices (e.g., transistors, solid-state diode

Regenerative type switching device

With light activation

257116, 257432, H01L 2974, H01L 21111, H01L 310232

Patent

active

058474161

ABSTRACT:
A light travelling from a light transmission window (8) to a light receiving part (2) is transmitted first through a first light guide (11) of linear single core construction and next through a second light guide (12) which is bent and of multicore construction. Single core construction achieves a high light mixing effect, and accordingly the first light guide (11) makes a distribution of light intensity uniform. On the other hand, multicore construction has little light mixing effect, and raises little variation in distribution of incident light intensity. In other words, the second light guide (12) transmits the light to the light receiving part (2) without breaking the uniform distribution of light intensity achieved by the first light guide (11).

REFERENCES:
patent: 4862231 (1989-08-01), Aband

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