发明名称 |
Illumination optical apparatus and projection type display apparatus |
摘要 |
An illumination optical apparatus and a projection type display apparatus capable of preventing an image on boundary lines of a fly-eye lens from deviating from a designed position and preventing unevenness of brightness is provided: wherein a first lens holding member holding said first fly-eye lens; a second lens holding member joined to said first lens holding member, and holding said second fly-eye lens; and a third lens holding member joined to said second lens holding member, and holding an optical lens are provided; and said first lens holding member and said second lens holding member are joined to be relatively rotatable about an optical axis.
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申请公布号 |
US7540617(B2) |
申请公布日期 |
2009.06.02 |
申请号 |
US20050270426 |
申请日期 |
2005.11.08 |
申请人 |
KYOCERA CORPORATION;NEC DISPLAY SOLUTIONS, LTD. |
发明人 |
YAMADA RYUUJI;GOUDA HIROSHI;TAKEUCHI KATSUYUKI |
分类号 |
G03B21/14 |
主分类号 |
G03B21/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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