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Proceedings Paper

Constant-Luminance Retroreflective Targets For Robot Guidance
Author(s): Gordon T. Uber
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Paper Abstract

Reflective fiducial marks, or targets, permit the location of objects relative to a robot. Usually, object luminance falls off as the inverse square of the distance from the source. However, selected retroreflective marks illuminated by a source near the sensor can have luminances which are almost constant over a wide range of distances and which are also over one hundred times greater than those of diffuse reflectors. Retroreflective materials and illuminator design guidelines are discussed.

Paper Details

Date Published: 24 October 1988
PDF: 5 pages
Proc. SPIE 0958, Automotive Displays and Industrial Illumination, (24 October 1988); doi: 10.1117/12.947732
Show Author Affiliations
Gordon T. Uber, Lockheed Missiles & Space Company (United States)


Published in SPIE Proceedings Vol. 0958:
Automotive Displays and Industrial Illumination
B. Jin Chang; Thomas M. Lemons, Editor(s)

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