Beleuchtungseinrichtung und Projektions-Anzeigegerät

摘要

This specification discloses an illuminating device in which lights emitted from a plurality of light sources are made into substantially parallel lights and are made to enter a lens array system, and illumination is effected by the lights from the lens array system, characterized in that an optical system in which the action of compressing the incident light in the direction of arrangement of the plurality of light sources is greater than the action of compressing the incident light in a direction perpendicular thereto is provided between the light sources and the lens array system. The specification also discloses a projection type display apparatus including such illuminating device.