发明申请
US20060232866A1 Optical unit and exposure apparatus having the same 有权
光学单元和具有该光学单元的曝光设备

Optical unit and exposure apparatus having the same
摘要:
An optical unit includes a plate having a fixed position, an optical element having a specific optical action, a fixing device for partially fixing the optical element, and a deforming device, located between the plate and the optical element, for applying a deforming force to the optical element to asymmetrically change a surface shape of the optical element.
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