Embodiments of the present invention provide separate optical devices operable to couple to a separate LED, the separate optical device comprising an entrance surface to receive light from a separate LED when the separate optical device is coupled to the separate LED, an exit surface opposite from and...http://www.google.fr/patents/US20070152230?utm_source=gb-gplus-shareBrevet US20070152230 - Separate optical device for directing light from an LED
Separate optical device for directing light from an LED
Numéro de demande: 11/649,018 Numéro de publication: US 2007/0152230 A1 Date de dépôt: 3 janv. 2007 Brevet délivré: US7772604 ( Date de délivrance 10 août 2010)
