Light Source Quality Evaluating Method by Using Spectral Resemblance With Respect to the Blackbody Radiation
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Sep 25, 2013
filing date -
Apr 17, 2013
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Abstract
The present invention relates to a light source quality evaluating method by using spectral resemblance with respect to the blackbody radiation, which mainly comprises 5 method steps. This method is used for evaluating the quality of light based on physiological perception of human. In evaluating operation, the method firstly transfers a power spectrum of a light source to a luminance spectrum of light source through a luminosity function. Next, the method compares the luminance spectrum of light source with a luminance spectrum of the blackbody radiation thereof. Therefore, an index of spectral resemblance with respect to the black body radiation (SRBR) would be calculated and then obtained, such that the SRBR can be used for evaluating the quality of the light source. Moreover, comparing to conventional color rendering index (CRI), SRBR is a better light source quality evaluating method because of having fairness and consistency.
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