24 October 1988 Constant-Luminance Retroreflective Targets For Robot Guidance
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Proceedings Volume 0958, Automotive Displays and Industrial Illumination; (1988) https://doi.org/10.1117/12.947732
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States
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.
© (1988) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gordon T. Uber, "Constant-Luminance Retroreflective Targets For Robot Guidance", Proc. SPIE 0958, Automotive Displays and Industrial Illumination, (24 October 1988); doi: 10.1117/12.947732; https://doi.org/10.1117/12.947732


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