SCANNING OPTICAL SYSTEM AND PROJECTOR PROVIDED WITH THE SAME

摘要

Provided is is scanning optical system having reduced dimensions. The scanning optical system (10) is provided with a laser light source section (1), lens optical systems (11, 17, 19) which make laser beams parallel to each other, and a scanning section (2) which performs laser beam scanning by changing the tilt of a scanning minor (3). The laser beams made parallel to each other travel toward the scanning mirror (3) by being reflected by means of a plurality of optical members, and a plane including at least two optical paths intersects the normal line direction of the reflecting surface (3a) of the scanning mirror (3) in the non-driven state.