The invention is related to an optical lens, a light-emitting diode optical component and a light-emitting diode road lamp. The optical lens formed as a semi-spherical shape includes an uplifting spherical surface and a bottom surface corresponding to the spherical surface. The bottom surface includes an elongate recess concave to the...
source Optical Component patent applications http://www.freshpatents.com/-dt20130404ptan20130083521.php
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source Optical Component patent applications http://www.freshpatents.com/-dt20130404ptan20130083521.php
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