Patent ID: 7522342

Claim:
An image display apparatus, comprising: a pair of image forming elements; and an optical system for guiding a light beam from the pair of image forming elements to a pair of observation areas, wherein: the optical system includes a plurality of curved reflecting surfaces, and is symmetrical with respect to a symmetry plane which is a plane passing through a center of the pair of observation areas, in which a light beam from the image forming elements disposed on one side of the symmetry plane is reflected on a curved reflecting surface disposed on the one side and reflected on a curved reflecting surface disposed on the other side of the symmetry plane to return to the one side, is reflected on the curved reflecting surface disposed on the one side of the symmetry plane, and passes through a surface (SLa) to be guided to the observation area on the one side; and an area in the area of the surface (SLa) through which a light beam (LLa), which travels along an optical path closest to the symmetry plane, passes, among effective light beams which pass through the surface (SLa) and reach the observation areas, is formed in a shape having a positive refractive power.