Photoelectric sensor

Details Photoelectric sensor Photoelectric sensor

1987-04-29

1988-12-20

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250342, 350620, 350625, G02B 1700, G01J 508

Patent

active

047926856

ABSTRACT:
A photoelectric sensor comprises a light collecting block having a reflective mirror formed on an inner surface of a light transmitting window and a concave mirror including a light passing portion, whereby the reflective mirror is opposed to the concave mirror. Further, the photoelectric sensor comprises an electronic circuit block having a photoelectric element, a plurality of electronic components and a wiring substrate, wherein the photoelectric element is positioned on a light collecting point of the light collecting block.

REFERENCES:
patent: 3059113 (1962-10-01), McHenry

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