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1. 发明申请

WO2005022235A1 PROJECTION DISPLAY SYSTEM 审中-公开
标题翻译：投影显示系统
公开(公告)号：WO2005022235A1
公开(公告)日：2005-03-10
申请号：PCT/JP2004/012682
申请日：2004-08-26
申请人： CASIO COMPUTER CO., LTD. , NAKAMURA, Hideki
发明人： NAKAMURA, Hideki
IPC分类号： G02B26/08
CPC分类号： G03B21/22
摘要： With a view to providing a projection display system utilizing a reflection display device which can project on a projection surface a high-quality image which is free from irregular luminance and reduced contrast, there is provided a projection display system comprising a reflection display device 1, a light source system optical member 2 for projecting an illumination beam toward the reflection display device1 from a direction inclined in one direction relative to a front surface direction of the reflection display device 1, a projection system optical member 15 for projecting an image beam that has exited from the reflection display device on a projection surface, and a relay lens 14 disposed on a front surface side of the reflection display device 1 for correcting the illumination beam that has entered from a surface which faces the light source system optical member 2 and the projection system optical member 15 into a parallel beam which follows a direction inclined at a predetermined angle relative to the front surface direction of the reflection display device so as to make the parallel beam so corrected enter the reflection display device 1, making an image beam that has exited from the reflection display device 1 enter the projection system optical member 15 and making part of the illumination beam from the light source system optical member 2 that has been surface reflected on the surface which faces the light system optical member and the projection system optical member exit in directions other than the direction in which the image beam is projected by the projection system optical member 15.
摘要翻译：为了提供一种投影显示系统，该投影显示系统利用能够在投影面上突出出不具有不规则亮度和降低对比度的高品质图像的反射显示装置，提供了一种投影显示系统，包括反射显示装置1，光源系统光学构件2，用于从相对于反射显示装置1的前表面方向在一个方向上倾斜的方向向照射显示装置1投射照明光束;投影系统光学构件15，用于投影具有从投影面上的反射显示装置退出，以及设置在反射显示装置1的表面侧的中继透镜14，用于校正从面向光源系统光学部件2的表面进入的照明光束，投影系统光学构件15成为沿着倾斜于预定方向的方向的平行光束使反射显示装置1的相对于反射显示装置的前表面方向的入射角度使得经过校正的平行光束进入反射显示装置1，使从退光显示装置1退出的图像光束进入投影系统光学部件15，使来自光源系统光学构件2的照明光束的一部分已经在面向光系统光学构件的表面上被表面反射并且投影系统光学构件在除了图像光束投射的方向以外的方向上排出投影系统光学构件15。

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