Patent ID: 7346261

Claim:
An image display apparatus comprising: a light source; a scanning member for deflecting a light from said light source to scan a predetermined surface with the light to form a two-dimensional image thereon; a first optical system for guiding the light deflected by the scanning member onto the predetermined surface, the first optical system having, on an optical path, an optical element with a plurality of optical surfaces including a refractive surface and a reflective surface formed on a same medium, the light deflected by the scanning member is guided to the predetermined surface through the reflective surface of the optical element; and a second optical system for guiding the light from the two-dimensional image formed on the predetermined surface to an observer, the second optical system having the optical element on the optical path, wherein the first optical system and second optical system share a part of optical surfaces of said optical element, wherein the optical element has an entrance surface where a light deflected by the scanning member enters; an exit surface from which the light from the two-dimensional image formed on the predetermined surface is emitted to said observer; a plurality of reflective surfaces disposed on an optical path between the entrance surface and the exit surface, wherein a reflective surface closest to the predetermined surface on the optical path from the scanning member to the predetermined surface is a surface different from the exit surface, and wherein the reflective surface closest to the predetermined surface and the exit surface are configured by rotationally asymmetric surfaces.