Patent ID: 7345823

Claim:
An optical system, comprising: an optical deflecting array including a plurality of optical deflecting devices arranged in a two-dimensional array, each of optical deflecting devices displacing a member having an optical reflection area and deflecting light, so that an incoming light flux entering the optical reflection area is deflected to a reflection direction being changed; a light source illuminating the optical deflecting array; and a projection lens projecting reflected light from the optical deflecting array based on color information, wherein: the plurality of the optical deflecting devices is formed as an optical deflecting device group, and each of the optical deflecting devices deflects light to two-axes, in four directions by individually operating two deflection axes; incoming light fluxes having different colors enter each of the optical deflecting devices from two directions respectively corresponding to the two deflection axes, and are reflected to one direction by shifting time in each optical deflection operation of the optical deflecting devices based on the color information; and each of reflected light fluxes is led to the projection lens.