Patent ID: 6595645
Filing Date: 2003-07-22
Classification: H04N

Abstract:
A display optical unit comprising:a light valve which modulates light to form picture information; a light splitter which splits light into a plurality of color components and which directs each of said color components to said light valve; an illumination unit which directs light emanated from a light source to said light splitter; and a projection lens which magnifies and projects said modulated light having said picture information for displaying a picture; wherein in operation an optical axis of said projection lens is shifted from an optical axis of said illumination unit and said light splitter, and a projection lens unit including said light valve and said projection lens has a positioning mechanism which determines a position thereof when attached and is attachable and detachable independent of said illumination unit and said light splitter in a direction perpendicular to an optical axis and in a shifting direction of the optical axis of said projection lens.