Patent ID: 6894729

Claim:
An optical projection apparatus, comprising: an optical lighting system provided with an irradiating unit to separate white light flux from a white light source into three primary color light fluxes of red, green, and blue, and to irradiate said three color light fluxes on a display element; and a projection lens unit having a plurality of lens element to project said three color light fluxes modulated by said display element to a screen; wherein said optical lighting system is disposed between said white light source and said display element; wherein said blue light flux passes through substantially a center of an injection pupil of said projection lens unit; and wherein said lens element included in said projection lens unit allows a sign of aberration generated by said red light flux to be substantially opposite to a sign of magnification color aberration generated by said projection lens unit, thereby said aberration generated by said red light flux is corrected in the direction for canceling said magnification color aberration by said projection lens unit.