System for generating an extended specular lighting field
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United States of America Patent
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May 1, 2018
Issued Date -
N/A
app pub date -
Jan 27, 2011
filing date -
Jan 27, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A system for generating an extended specular lighting field for reading symbols on a reflective background surface is described. A scanner generates illumination for illuminating the symbols. Reflection of the illumination incident upon the reflective surface is retroreflected onto the symbols on the reflective surface. Reflection of the retroreflected light by the reflective surface is received by the scanner for processing information about the symbols. By using the reflective surface to help illuminate the symbols, an ordinary scanner can be used to read the symbols.
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Cited Art Landscape
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