Online LED Ray Data Files
December 2008
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An LED manufacturer provides direct Web access to the ray data files for its light-emitting diodes. The ray files, which can be downloaded from, indicate the pattern in which light is emitted from an LED and include the coordinates of the emission point, the direction of emission, the intensity, and the wavelength. Visitors to the ray files site can view specifications on most of the company’s entire LED portfolio, including infrared emitter diodes (IREDs), and download the data and a custom CAD model for board design (3-D design and package). OSRAM Opto Semiconductors,

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