BEAM PROJECTOR WITH EQUALIZATION LENS

摘要

PURPOSE: A beam projector with an equalization lens is provided to reduce the thickness thereof by moving an illumination optical lens to a screen side and to compensate the movement of a lighting region caused by the movement of the illumination optical system through the rotation of a mirror. CONSTITUTION: A beam projector comprises a display panel(300), an illumination optical system(100), and a projection optical system(400). The display panel includes a plurality of pixel elements and forms images by controlling the pixel elements according to driving signals. The illumination optical system includes an equalization lens and a mirror arranged on a first optical axis and outputs lights penetrated through the equalization lens to the display panel through the mirror. The projection optical system includes one or more lenses arranged on a second optical axis and outputs the lights reflected by the display panel to the outside. An alignment axis of the equalization lens forms a preset inclination with the second optical axis.