Patent ID: 6238066
Filing Date: 2001-05-29
Classification: F21V,H04N

Abstract:
A two-dimensional area tilted illumination system comprising:a long light source for emitting a light flux comprising light rays, the long light source having a longitudinal axis; anda reflecting mirror, said reflecting mirror having a curved surface defined by a generating line which is parallel to the longitudinal axis of the long light source,wherein the curved surface of the reflecting mirror has a first area for illuminating an illumination surface after the light flux is first reflected and converged, andwherein the first area is shaped such that an intersection point of the light rays, reflected at two ends of the first area, is a position which is located in a plane which is perpendicular to said generating line and which contains a light ray impinging a center of the illumination surface, with said position being on the same side as the long light source with respect to said light ray impinging the center of the illumination surface.