Object sensing apparatus

Electricity: motive power systems – Automatic and/or with time-delay means – Radiant energy

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Details

318450, 318460, 318467, 250221, 2502221, 340355, 340356, G05B 500

Patent

active

045904103

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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Advertising Brochure entitled, "Multiscan Optical Electronic Door Control System for Swingmatic Entrances", Kawneer Architectural Products.

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