Patent ID: 6474826
Filing Date: 2002-11-05
Classification: G02B

Abstract:
A lighting apparatus for causing light from a light source to enter an incident surface of a light guide plate and to project the light toward an object of illumination from an exit surface of the light guide plate extending in a direction perpendicular to said incident surface,wherein the light source is made by placing a light-emitting diode, on or near a light source rod extending in a longitudinal direction parallel to the incident surface of the light guide plate, and the light source rod and the light guide plate are integrally made by forming a slot in a common plate, said slot keeping said incident surface of the light guide plate and an inner surface of said light source rod away from each other, a back wall of said light source rod extends parallel to said incident surface, and said slot extends parallel to said incident surface of the light guide plate to near longitudinal ends of the lighting apparatus.