LEDs as indicators, illuminators, and full color displays

Mark Hodapp

doi:10.1117/12.2284052

30 August 2017 LEDs as indicators, illuminators, and full color displays

Mark Hodapp

Proceedings Volume 10317, Photonics for Consumer Electronics; 1031706 (2017) https://doi.org/10.1117/12.2284052
Event: Tutorial Texts in Optical Engineering Series 1989, 1994, Bellingham, WA, United States

Abstract

LED technology has come a long way since its humble beginnings as the HP-35 calculator display. Today's LEDs exceed the luminous efficiency of filtered incandescent bulbs. The technology is rapidly advancing. New colors and higher efficiencies are available today that were unheard of even two years ago. This technology tutorial will cover the latest advances in LED technology worldwide. New materials, such as AlInGaP and GaN can provide luminous efficiencies over 20 lumens/watt with colors such as blue, green, yellow, and red. This technology tutorial will show how LEDs can be assembled into large area full-color displays for applications like traffic signals, intelligent highway warning signs, and advertising billboards.

Citation Download Citation

Mark Hodapp "LEDs as indicators, illuminators, and full color displays", Proc. SPIE 10317, Photonics for Consumer Electronics, 1031706 (30 August 2017); https://doi.org/10.1117/12.2284052

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