A surface light source device. A light guide plate has an incident end face, an emitting face, at least one full-reflective face, and a plurality of light adjusters. The full-reflective face reflects light onto the incident end face for direction to the emitting face for transmission. The light adjusters...http://www.google.de/patents/US7077557?utm_source=gb-gplus-sharePatent US7077557 - Surface light source device
