发明名称 Catadioptric projection system, and exposure apparatus having the same
摘要 A catadioptric projection system for forming an intermediate image of a first object plural times, and images the intermediate image onto a second object includes at least two deflective reflectors, a lens unit arranged in an optical path between the two deflective reflectors, the lens unit having a negative refractive power, and not forming a reciprocating optical system that passes incident light and reflected light.
申请公布号 US7268952(B2) 申请公布日期 2007.09.11
申请号 US20050271665 申请日期 2005.11.10
申请人 CANON KABUSHIKI KAISHA 发明人 KATO TAKASHI;TERASAWA CHIAKI
分类号 G02B3/00 主分类号 G02B3/00
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