Accessible Requires Authentication Published by De Gruyter December 28, 2016

Enhancing the luminance of converted green LEDs in LED projectors

Benjamin Schulz and Cornelius Neumann

Abstract

High-power light-emitting diodes have successfully found their way into projection applications. Owing to their long lifetime, small size, and easy electrical drive, they are getting more and more attractive for use in various kinds of projectors. The challenge to achieve higher brightness levels lies in the étendue limitation, which is determined mainly by the size of the microdisplay inside the projection system. In this paper, a new approach is presented to increase the output flux of LED-based projectors by enhancing the luminance of converted green LEDs.

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Received: 2016-10-14
Accepted: 2016-11-29
Published Online: 2016-12-28
Published in Print: 2017-2-1

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