Patent ID: 9151955
Filing Date: 2015-10-06
Classification: G02B,G03B,H04N

Abstract:
1. A projection system, comprising: a light source for emitting an illumination light beam; a light-homogenizing device located on a transmission path of the illumination light beam, for homogenizing the illumination light beam into an uniform light beam; a light-homogenizing device adjustment element comprising an actuator leaning against one side of the light-homogenizing device and having a plurality of curved surfaces with different radii of curvature, wherein, when the actuator rotates about an axial direction as a rotary center, the curved surfaces push the light-homogenizing device to cause the light-homogenizing device to move in at least one direction from an initial position, and the at least one direction comprises a direction not parallel to the axial direction; an imaging device located on a transmission path of the uniform light beam, for transforming the uniform light beam into an image beam; and a projection lens for receiving the image beam for projection.