Embodiments of a panel lighting apparatus and methods of its manufacture are described. In one embodiment, the apparatus can include a light source, an at least partially transparent panel comprising a planar front surface and a planar back surface, the panel disposed in conjunction with the light source...http://www.google.fr/patents/US20100177533?utm_source=gb-gplus-shareBrevet US20100177533 - LARGE AREA LIGHT PANEL AND SCREEN
Numéro de demande: 12/482,294 Numéro de publication: US 2010/0177533 A1 Date de dépôt: 10 juin 2009 Brevet délivré: US8231257 ( Date de délivrance 31 juil. 2012)