发明授权
US08009343B2 Optical imaging device having at least one system diaphragm 有权
具有至少一个系统隔膜的光学成像装置

Optical imaging device having at least one system diaphragm
摘要:
An optical imaging device (PL), in particular an objective for semiconductor lithography, is provided with at least one system diaphragm. The system diaphragm comprises a multiplicity of mobile plates, which are rotatably mounted. The plates have a spherical curvature.
信息查询
0/0