LED-based edge lit illumination system

An edge lit illumination system is directed to providing backlighting utilizing a luminescent impregnated lightguide. The apparatus includes an LED radiation source providing a first radiation and a lightguide optically coupled to the LED radiation source including a luminescent material embedded or...

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Bibliographic Details
Main Authors RADKOV EMIL, SRIVASTAVA ALOK MANI, JACOB CHERIAN, CHEN CHEN-LUN HSING, SETLUR ANANT ACHYUT, COMANZO HOLLY ANN, SHIANG JOSEPH
Format Patent
LanguageEnglish
Published 04.12.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:An edge lit illumination system is directed to providing backlighting utilizing a luminescent impregnated lightguide. The apparatus includes an LED radiation source providing a first radiation and a lightguide optically coupled to the LED radiation source including a luminescent material embedded or coated on an output surface of the lightguide designed to absorb the first radiation, and emit one or more radiations. The illumination system may further include additional optical components such as reflective layers, for directing radiation striking the back surfaces of the light guide back into the lightguide, as well as diffusion layers, UV reflectors, and polarizers.
Bibliography:Application Number: US20040884205