OPTICAL DEVICE FOR LED-BASED LAMP

An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MINANO JUAN CARLOS, SUN YUPIN, PARKYN WILLIAM A, FALICOFF WAQIDI, BENITEZ PABLO, CHAVES JULIO CESAR, MUNOZ FERNANDO
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An optical device for coupling the luminous output of a light-emitting diode (LED) to a predominantly spherical pattern comprises a transfer section that receives the LED's light within it and an ejector positioned adjacent the transfer section to receive light from the transfer section and spread the light generally spherically. A base of the transfer section is optically aligned and/or coupled to the LED so that the LED's light enters the transfer section. The transfer section can comprises a compound elliptic concentrator operating via total internal reflection. The ejector section can have a variety of shapes, and can have diffusive features on its surface as well. The transfer section can in some implementations be polygonal, V-grooved, faceted and other configurations.