Moving object detecting apparatus

Details Moving object detecting apparatus Moving object detecting apparatus

1981-05-14

1983-09-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

340555, 250560, H01J 3900

Patent

active

044031424

ABSTRACT:
A moving object detecting apparatus of which a plurality of light receiving means arranged to have a common light receiving zone and a plurality of independent light receiving zones are disposed within a single casing together with a light emitting means. Receiving order in the respective light receiving means of reflected light from a moving object within the zones is detected to discriminate moving direction of the object and desired indications are performed responsive to the discriminated direction.

REFERENCES:
patent: 2595993 (1952-05-01), Templeman et al.
patent: 2916633 (1959-12-01), Stone et al.
patent: 3474252 (1969-10-01), Jacobson
patent: 3679906 (1975-07-01), Meyers
patent: 3723738 (1973-03-01), Brenner et al.
patent: 3842257 (1974-10-01), Kohler
patent: 3875403 (1975-04-01), Svensson
patent: 4306147 (1981-12-01), Fukuyama et al.

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