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    • 6. 发明专利
    • Imaging lens and manufacturing method of the lens
    • 镜头的成像镜头和制造方法
    • JP2005250089A
    • 2005-09-15
    • JP2004060180
    • 2004-03-04
    • Fujinon Corpフジノン株式会社
    • SATO KENICHI
    • G02B5/00G02B3/00G02B7/02G02B9/00G02B9/08G02B13/00G02B13/18G02B15/14
    • G02B13/0035
    • PROBLEM TO BE SOLVED: To provide an imaging lens with which a diaphragm by a light shielding pattern is accurately formed on the surface of the lens with high dimensional accuracy and improvements in flare and size or the like are realized compared with a conventional lens.
      SOLUTION: A surface S2 is provided with a translucent region 10 which is made translucent to an incident luminous flux, a light shielding region 20 which shields the incident luminous flux and a difference in level 30 which is made along the normal direction of the surface S2 to define the boundary of the translucent region 10 and the light shielding region 20. An aperture diaphragm having a more precise dimension is easily obtained by forming a coating film having a light shielding capability over the entire region 20 using the difference in level 30 as a boundary. Thus, generation of flare and ghost is suppressed while the size is reduced.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:与现有技术相比,提供了一种成像透镜,其通过遮光图案精确地形成具有高尺寸精度的透镜表面上的光阑和扩大和尺寸等的改善。 镜片。 解决方案:表面S2设置有半透明区域10,该半透明区域10对入射光束是半透明的,遮光区域20遮蔽入射光束,并且沿着法线方向 表面S2以限定半透明区域10和遮光区域20的边界。通过使用水平差在整个区域20上形成具有遮光能力的涂膜,容易地获得具有更精确尺寸的孔径光阑 30作为边界。 因此,在大小减小时抑制了耀斑和鬼影的产生。 版权所有(C)2005,JPO&NCIPI