| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an illumination optical apparatus capable of not only preventing an image on the boundary line of a fly-eye lens from being deviated from a position in a design but also restraining the occurrence of irregular luminance, and to provide a projection display apparatus. <P>SOLUTION: The illumination optical apparatus has a 1st lens holding member 300 holding a 1st fly-eye lens 104, a 2nd lens holding member 400 connected to the 1st lens holding member 300 and holding a 2nd fly-eye lens 105, and a 3rd lens holding member 500 connected to the 2nd lens holding member 400 and holding a 1st lens group 106, a mirror 107 and a 2nd lens group 108. The 1st lens holding member 300 and the 2nd lens holding member 400 are connected to rotate centering around an optical axis. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
