Patent ID: 7580603
Filing Date: 2009-08-25
Classification: G02B

Abstract:
1. An illumination device, comprising: a light source to emit lights; a homogeneous light guiding device that makes intensity distributions of the lights emitted from the light source homogeneous; a reflecting device, that is disposed on a light incident end face side of the homogeneous light guiding device and that is provided with an aperture to allow the lights to enter the homogenous light guiding device that reflects lights emitted from the homogenous light guiding device to an inside of the homogenous light guiding device in a region other than the aperture; a reflection variable diaphragm device, that is disposed on a light exiting end face side of the homogenous light guiding device, that forms a variable aperture in which an area of an aperture region that allows lights to be emitted from the homogeneous light guiding device varies, and, in a region other than the aperture region, reflects the lights emitted from the homogeneous light guiding device to the inside of said homogeneous light guiding device; and a light scanning device that scans lights emitted from the reflection variable diaphragm device on a subject to be illuminated.