发明申请
US20070247722A1 Refractive projection objective 有权
折射投影物镜

Refractive projection objective
摘要:
Refractive projection objective with a numerical aperture greater than 0.7, consisting of a first convexity, a second convexity, and a waist arranged between the two convexities. The first convexity has a maximum diameter denoted by D1, and the second convexity has a maximum diameter denoted by D2, and 0.8
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