Beleuchtungsgerät und damit versehener Projektor

摘要

This invention relates to an optical system such as a projector, including a light source and an illuminating system. The projector of this invention is provided with: a light source having first and second high-luminance light-emitting areas; an illuminating optical system for directing the light from the light source toward an object to be illuminated, wherein the first and second high-luminance light-emitting areas are positioned on the optical axis of the illuminating optical system; and a projection optical system for projecting the light emerging from the illuminated object; wherein the illuminating optical system is constructed in such a manner that the central area of the illuminated object is illuminated by the light beam from the first high-luminance light-emitting area and the peripheral area of the illuminated object is illuminated by the light beam from the first and second high-luminance light-emitting areas.