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公开(公告)号:US20020167734A1
公开(公告)日:2002-11-14
申请号:US10114919
申请日:2002-04-03
发明人: Karl-Heinz Schuster
IPC分类号: G02B027/14 , G02B027/12
CPC分类号: G02B17/0892 , G02B17/08 , G03F7/70225
摘要: There is provided a catadioptric projection objective that includes (a) an object plane having a rectangular object field, and (b) a beam splitter situated in a light path after the object plane, having a rectangular surface adapted to the object field and having an aspect ratio not equal to 1.
摘要翻译: 提供了一种反折射投射物镜,其包括(a)具有矩形物体场的物平面,以及(b)位于物平面之后的光路中的分束器,具有适于物场的矩形表面,并具有 长宽比不等于1。