Invention Grant
- Patent Title: Optical element damping systems
- Patent Title (中): 光学元件阻尼系统
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Application No.: US11634931Application Date: 2006-12-07
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Publication No.: US07751130B2Publication Date: 2010-07-06
- Inventor: Stephen Roux , Peter Kochersperger , Justin Kreuzer
- Applicant: Stephen Roux , Peter Kochersperger , Justin Kreuzer
- Applicant Address: NL Veldhoven
- Assignee: ASML Holding N.V.
- Current Assignee: ASML Holding N.V.
- Current Assignee Address: NL Veldhoven
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G02B7/02
- IPC: G02B7/02

Abstract:
The present invention is directed to optical element damping systems. In particular, an eddy current damper is disclosed. The eddy current damper includes a rod, a series of conducting plates coupled to the rod, and layers of magnets. The alternating layers have alternating magnetic fields. When an optical element moves, the optical element will exert a force on the rod. The rod causes the conducting plates to move relative to the alternating layers of magnets to generate eddy currents within each of the conducting plates, such that the eddy currents damp the motion of an optical element. In an alternative embodiment, an eddy current damper motion amplifier is used to provide additional mechanical advantage that significantly increases the damping provided by the eddy current damper. Eddy current dampers are provided within conventional scanning lithography devices and optical maskless lithography devices to improve performance by stabilizing optical element motion.
Public/Granted literature
- US20070153348A1 Optical element damping systems Public/Granted day:2007-07-05
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |
G02B7/02 | .用于透镜 |