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    • 19. 发明授权
    • Objective lens unit for endoscope
    • 内窥镜物镜单元
    • US07695431B2
    • 2010-04-13
    • US10771403
    • 2004-02-05
    • Shinsuke Okada
    • Shinsuke Okada
    • A61B1/06
    • G02B27/62G02B23/243G02B27/021
    • An objective optical system is configured to be suitable to be implemented at a tip of an endoscope. The objective optical system is provided with a first lens unit having a first lens barrel and a first optical system including plurality of lens elements assembled in the first lens barrel, and a second lens unit having a second lens barrel and a second optical system including a plurality of lens elements. The first lens unit or the second lens unit includes an alignment lens which is movable in a direction perpendicular to the optical axis thereof. The alignment lens is a lens most sensitive with respect to an alignment error among the plurality of lenses included in the first optical system.
    • 物镜光学系统被配置为适合于在内窥镜的尖端处实现。 物镜光学系统设置有具有第一透镜镜筒和第一光学系统的第一透镜单元,第一透镜镜筒和第一光学系统包括组装在第一透镜镜筒中的多个透镜元件,以及具有第二透镜镜筒的第二透镜单元和包括第 多个透镜元件。 第一透镜单元或第二透镜单元包括可在垂直于其光轴的方向上移动的对准透镜。 对准透镜是对包括在第一光学系统中的多个透镜中的对准误差最敏感的透镜。