Invention Grant
US08625203B2 Zoom lens, optical apparatus having same, and method of manufacturing zoom lens 有权
变焦镜头,具有其的光学装置以及制造变焦镜头的方法

  • Patent Title: Zoom lens, optical apparatus having same, and method of manufacturing zoom lens
  • Patent Title (中): 变焦镜头,具有其的光学装置以及制造变焦镜头的方法
  • Application No.: US13002984
    Application Date: 2009-05-12
  • Publication No.: US08625203B2
    Publication Date: 2014-01-07
  • Inventor: Takeshi SuzukiHaruo Sato
  • Applicant: Takeshi SuzukiHaruo Sato
  • Applicant Address: JP Tokyo
  • Assignee: Nikon Corporation
  • Current Assignee: Nikon Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Miles & Stockbridge P.C.
  • Priority: JP2008-178668 20080709; JP2008-178670 20080709
  • International Application: PCT/JP2009/058862 WO 20090512
  • International Announcement: WO2010/004806 WO 20100114
  • Main IPC: G02B15/14
  • IPC: G02B15/14
Zoom lens, optical apparatus having same, and method of manufacturing zoom lens
Abstract:
The zoom lens is configured having, in order from an object, a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, a third lens group (G3) having positive refractive power, and a fourth lens group (G4) having positive refractive power. The distance between each lens group is changed upon zooming from a wide-angle end state to a telephoto end state, the third lens group (G3) has, in order from the object, a thirty first lens group (G31) having positive refractive power (positive lens group), and a thirty second lens group (G32) having negative refractive power (negative lens group), the thirty second lens group (G32) is moved so as to have components orthogonal to the optical axis, and the condition of the expression 2.6
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