Patent attributes
A surface light source device has a light-conductor plate that conducts light at an interior and allows same to exit at a light-exit surface to an outside, and a light source arranged oppositely to a light incident surface of the light-conductor plate and small in size as compared to a width of the light-conductor plate. The light source is held by a fixture engaged on the light-conductor plate. The fixture in part is elastically abutted against an opposite surface of the light source to a surface thereof facing to the light incident surface thereby urging the light source on the light incident surface. The fixture and the light-conductor plate are aligned to each other thicknesswise of the light-conductor plate, and the fixture and the light source are aligned to each other thicknesswise of the light-conductor plate.
