发明授权
US08498067B2 Optical element holding apparatus, barrel, exposure apparatus, and manufacturing method for device 有权
光学元件保持装置,镜筒,曝光装置及其制造方法

  • 专利标题: Optical element holding apparatus, barrel, exposure apparatus, and manufacturing method for device
  • 专利标题(中): 光学元件保持装置,镜筒,曝光装置及其制造方法
  • 申请号: US13159305
    申请日: 2011-06-13
  • 公开(公告)号: US08498067B2
    公开(公告)日: 2013-07-30
  • 发明人: Youichi Arai
  • 申请人: Youichi Arai
  • 申请人地址: JP Tokyo
  • 专利权人: Nikon Corporation
  • 当前专利权人: Nikon Corporation
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Klarquist Sparkman, LLP
  • 优先权: JP2007-113049 20070423
  • 主分类号: G02B7/02
  • IPC分类号: G02B7/02
Optical element holding apparatus, barrel, exposure apparatus, and manufacturing method for device
摘要:
An optical element holding apparatus includes an annular vibration attenuation plate, which covers a peripheral portion of a lens, and a connection member, which is formed of a damping alloy and which fixes the vibration attenuation plate to a frame body in a state of non-contact with the surface of the lens. The vibration attenuation plate and nitrogen gas in a clearance between the vibration attenuation plate and the surface of the lens form a squeeze film damper.
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