Abstract

This paper discusses the design optimization of LEDs fabricated using chip-on-board technology. Light losses are analyzed, and an attempt is made to create an optical element that maximizes the light-output efficiency from the chips. Experimental measurements of test samples are made, and optimization calculations are carried out using the Zemax software package. As a result of the studies, an optimized shape of the optical element is obtained that makes it possible to reduce the light losses in the device by 10% by comparison with the initial design.

© 2014 Optical Society of America

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