公开(公告)号：US5755503A

公开(公告)日：1998-05-26

申请号：US554968

申请日：1995-11-13

申请人： Kuang-Yu Chen ,  San-Ming Chen ,  Zu-Deh Hao

发明人： Kuang-Yu Chen ,  San-Ming Chen ,  Zu-Deh Hao

IPC分类号： F21S8/00 ,  F21V13/04 ,  H04N5/74 ,  H04N9/31 ,  G03B21/14

CPC分类号： H04N9/315 ,  F21V13/04 ,  H04N9/3105 ,  H04N5/7441

摘要： An illumination system having improved efficiency and uniformity for an image projection apparatus. The illumination system is employed for supplying an optical radiation beam along a principal axis to illuminate an object which, in a plane perpendicular to the principal axis, has a non-round cross-section. The illumination system includes: a light source for emitting light beams; a reflective mirror, having a plurality of reflective curved surfaces for reflecting the light beams emitted from the light source to form a plurality of reflective beams; and a lens plate, having a plurality of lenses, each of the plurality of lenses corresponding to a reflective curved surface of the reflective mirror to project the plurality of reflective beams onto the object, so that the plurality of reflective beams are superimposed on the object and produce a uniform illumination.

摘要翻译： 一种对于图像投影装置具有改进的效率和均匀性的照明系统。 照明系统用于沿着主轴提供光辐射束以照射在垂直于主轴的平面中具有非圆形横截面的物体。 照明系统包括：用于发射光束的光源; 反射镜，具有多个反射曲面，用于反射从光源发射的光束以形成多个反射光束; 以及具有多个透镜的透镜板，所述多个透镜中的每一个对应于所述反射镜的反射弯曲表面，以将所述多个反射光束投影到所述物体上，使得所述多个反射光束叠加在所述物体上 并产生均匀的照明。