Method for detecting objects with light
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United States of America Patent
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Jul 1, 2014
Grant Date -
Nov 28, 2013
app pub date -
Nov 14, 2012
filing date -
Jun 18, 2007
priority date (Note) -
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Abstract
A method for detecting an object using light comprises providing a light source having a function of illuminating an environment. The light source is driven to emit light in a predetermined mode, with light in the predetermined mode being emitted such that the light source maintains said function of illuminating an environment. A reflection/backscatter of the emitted light is received from an object. The reflection/backscatter is filtered over a selected wavelength range as a function of a desired range of detection from the light source to obtain a light input. The presence or position of the object is identified with the desired range of detection as a function of the light input and of the predetermined mode.
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