Patent ID: 6799879
Filing Date: 2004-10-05
Classification: G02B

Abstract:
A system for forming an image, comprising:a small light source, which emits light along a first path of rays, and of which an image is to be formed; first spherical, concave reflector means receiving said light along said first path of rays and having a concave reflecting surface for reflecting the light received along a second path of rays, said spherical concave reflector means defining an axis of symmetry, the light source being arranged asymmetrically with respect to said axis of symmetry, said first path of rays and said axis of symmetry defining a meridian plane; light guide means having an entrance surface onto which said light source an image is to be formed and receiving light sent along said second path of rays; and lens means of positive diffraction in said first path of rays, said lens comprising a cylindrical lens having a cylinder axis, said cylinder axis being arranged perpendicularly to said first path of rays in said meridian plane.