发明申请
US20070284528A1 Phase contrast electron microscope 有权
相差电子显微镜

  • 专利标题: Phase contrast electron microscope
  • 专利标题(中): 相差电子显微镜
  • 申请号: US11717201
    申请日: 2007-03-13
  • 公开(公告)号: US20070284528A1
    公开(公告)日: 2007-12-13
  • 发明人: Gerd BennerMarko Matijevic
  • 申请人: Gerd BennerMarko Matijevic
  • 优先权: DE102006011615.1 20060314
  • 主分类号: G01N23/00
  • IPC分类号: G01N23/00
Phase contrast electron microscope
摘要:
A phase contrast electron microscope has an objective (8) with a back focal plane (10), a first diffraction lens (11), which images the back focal plane (10) of the objective (8) magnified into a diffraction intermediate image plane, a second diffraction lens (15) whose principal plane is mounted in the proximity of the diffraction intermediate image plane and a phase-shifting element (16) which is mounted in or in the proximity of the diffraction intermediate image plane. Also, a phase contrast electron microscope has an objective (8) having a back focal plane (10), a first diffraction lens (11), a first phase-shifting element and a second phase-shifting element which is mounted in or in the proximity of the diffraction intermediate image plane. The first diffraction lens (11) images the back focal plane of the objective magnified into a diffraction intermediate image plane and the first phase-shifting element is mounted in the back focal plane (10) of the objective (8). With the magnified imaging of the diffraction plane by the diffraction lens, the dimensional requirements imposed on the phase plate having the phase-shifting element are reduced.
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