Object sensing apparatus

Details Object sensing apparatus Object sensing apparatus

1982-02-11

1984-08-21

Weldon, Ulysses

Electricity: motive power systems

Automatic and/or with time-delay means

Radiant energy

G05B 500

Patent

active

044672519

ABSTRACT:
An object sensing apparatus includes a plurality of light emitting diodes for illuminating a region of space and a plurality of closely arranged light detectors for receiving light reflected from an object. The apparatus is particularly useful in connection with automatically operated doors.

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