Patent ID: 8454169
Filing Date: 2013-06-04
Classification: G02B,G03B

Abstract:
1. An illumination device comprising: a light source which emits a plurality of emission lights; a first condenser lens which stacks the plural emission lights emitted from the light source; a first fly-eye lens which divides lights stacked by the first condenser lens into a plurality of partial lights; a second fly-eye lens which converges the plural partial lights; a second condenser lens which stacks the plural partial lights converged by the second fly-eye lens; and a plurality of converging lenses provided in correspondence with the plural emission lights on an optical path between the light source and the first condenser lens to individually converge the plural emission lights emitted from the light source, wherein the first condenser lens stacks the plural emission lights emitted from the light source on the first fly-eye lens, the second fly-eye lens stacks the plural partial lights on an illumination receiving area, the plural first condenser lenses are disposed within a plane crossing the optical axes of the plural emission lights emitted from the light source, and the plural emission lights emitted from the light source are stacked on the first fly-eye lens by each of the first condenser lenses.