Electrooptical presence recognition-sensor

Details Electrooptical presence recognition-sensor Electrooptical presence recognition-sensor

1986-03-20

1988-11-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340556, G01V 904

Patent

active

047822244

ABSTRACT:
In a light sensor with a housing (19) the light transmitter (17, 20) and the light receiver (12, 15) are arranged alongside one another. The received light beam (11) is deflected behind the front receiving lens (12) onto a photoelectric converter arrangement (15) via a deflecting mirror (14) which is pivotable about a transverse axis (13) and it is possible to change the sensing distance by pivoting the deflecting mirror (14).

REFERENCES:
patent: 3752978 (1973-07-01), Kahl et al.
patent: 3999192 (1976-12-01), Hosoe et al.
patent: 4123650 (1978-10-01), Hosoe et al.
patent: 4162124 (1979-07-01), Feldman et al.
patent: 4291223 (1981-09-01), Sakane et al.
patent: 4314239 (1982-02-01), Odone et al.

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