Optical receiver for area location system

Details Optical receiver for area location system Optical receiver for area location system

1992-05-15

1994-10-11

Housel, James C.

Optics: measuring and testing

By polarized light examination

With light attenuation

250561, G01B 1100, G01B 900, G01C 332

Patent

active

053552229

ABSTRACT:
An optical location system for locating the position of a moving object in a defined area. An optical transmitter is attached to the moving object. A stationary receiver has a number of sensors for receiving a signal from the transmitter. One sensor has a field of view of the entire area. Other sensors have partially blocked fields of view, with the blocking being accomplished with nonopaque strips of decreasing width. These strips are arranged so that the detection or nondetection of light by the sensors can be digitally coded in a manner that corresponds to sections of the area.

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