Projector optical system for projector apparatus, includes quarter-wave plate arranged between polarization separating surface of prism and digital micromirror device to rotate polarization direction of light

摘要

A prism (50) has polarization separating surface (51) to separate luminous flux incident on a digital micromirror device (DMP) (70). A quarter-wave plate (60) is arranged between the separating surface and the DMD, to rotate polarization direction of light. An Independent claim is also included for projector apparatus.