Projector apparatus

A projector apparatus which includes a light source which generates illumination light, an illumination optical system which collects the illumination light from the light source, a micromirror device which optically modulates the illumination light by displacing a plurality of mirror elements to generate image light, and a projection lens which projects the image light,

• wherein the illumination optical system has a rod lens which equalizes illuminance of the illumination light incident on the micromirror device, and a plurality of light-shielding plates which shields unnecessary light not incident on the rod lens among the illumination light, and
• the plurality of light-shielding plates is disposed on the incidence side of the rod lens such that each light-shielding plate is provided at a predetermined gap, and
• wherein the shielding of unnecessary light causes a suppression of a rise in temperature of the plurality of light-shielding plates.