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    • 1. 发明申请
    • IMAGING LENS SYSTEM
    • 成像镜头系统
    • US20130208178A1
    • 2013-08-15
    • US13540839
    • 2012-07-03
    • Young-woo Park
    • Young-woo Park
    • G02B9/60H04N5/225G02B13/18
    • G02B9/04G02B9/60G02B13/0045G02B13/006G02B13/18
    • An imaging lens system includes a first lens group having a positive refractive power and a second lens group having a positive refractive power, the first lens group and the second lens group are sequentially arranged from an object side to an image surface. The first lens group includes a first lens having a positive refractive power, a second lens having a positive refractive power, and a third lens having a negative refractive power and having a concave surface toward the image surface, which are sequentially arranged from the object side to the image surface. The second lens group includes a cemented lens of a fourth lens that has a concave surface toward the object side and is a negative lens and a fifth lens that is a positive lens, which are sequentially arranged from the object to the image surface.
    • 成像透镜系统包括具有正屈光力的第一透镜组和具有正屈光力的第二透镜组,第一透镜组和第二透镜组从物体侧依次排列到图像表面。 第一透镜组包括具有正折光力的第一透镜,具有正折射光焦度的第二透镜和具有负折射光焦度并且具有朝向图像表面的凹面的第三透镜,它们从物体侧依次布置 到图像表面。 第二透镜组包括从物体到图像表面依次布置的具有朝向物体侧的凹面并且是负透镜和作为正透镜的第五透镜的第四透镜的胶合透镜。
    • 2. 发明申请
    • COMPACT ZOOM LENS
    • 紧凑的变焦镜头
    • US20120057246A1
    • 2012-03-08
    • US13086468
    • 2011-04-14
    • Min HeuYoung-woo Park
    • Min HeuYoung-woo Park
    • G02B15/14
    • G02B15/177
    • A zoom lens including, in a sequence from an object side to an image plane side: a first lens group having a negative refractive power; a second lens group having a positive refractive power; a third lens group having a negative refractive power; and a fourth lens group having a positive refractive power. During zooming from a wide angle position to a telephoto position, an interval between the first lens group and the second lens group decreases, an interval between the second lens group and the third lens group increases, and an interval between the third lens group and the fourth lens group decreases. When the location of an object changes from ∞ to a close location, the first lens group is moved toward the object to perform focusing.
    • 一种变焦透镜,包括从物体侧到像面侧的顺序:具有负屈光力的第一透镜组; 具有正屈光力的第二透镜组; 具有负屈光力的第三透镜组; 以及具有正屈光力的第四透镜组。 在从广角位置到望远位置的变焦期间,第一透镜组和第二透镜组之间的间隔减小,第二透镜组和第三透镜组之间的间隔增加,并且第三透镜组与第三透镜组之间的间隔 第四透镜组减少。 当物体的位置从∞变为关闭位置时,第一透镜组朝向物体移动以进行聚焦。
    • 3. 发明申请
    • LENS OPTICAL SYSTEM
    • 镜头光学系统
    • US20090323205A1
    • 2009-12-31
    • US12488788
    • 2009-06-22
    • Young-woo Park
    • Young-woo Park
    • G02B13/04
    • G02B13/04G02B9/12G02B15/177
    • A wide-angle lens optical system, including, in a sequence from an object side, a first lens group having a positive or negative refractive power, a stop, and a second lens group having positive refractive power, wherein the first lens group comprises, in a sequence from the object side, a front group having negative refractive power and a rear group having positive refractive power, and the wide-angle lens optical system satisfies the following Inequalities: 1.0
    • 一种广角镜头光学系统,包括从物体侧开始的具有正或负屈光力的第一透镜组,具有正折射力的第二透镜组,其中第一透镜组包括: 从物体侧开始,具有负屈光力的前组和具有正屈光力的后组,并且广角透镜光学系统满足以下不等式:1.0 f II f 1.45 0.6f Ia f Ib cher 1.5 其中f表示透镜光学系统的总焦距,fII表示第二透镜组的焦距,fi表示第一透镜组的前面组的焦距,而fIb表示第二透镜组的焦距, 第一个镜头组。
    • 8. 发明授权
    • Compact zoom lens
    • 紧凑型变焦镜头
    • US08462444B2
    • 2013-06-11
    • US13086468
    • 2011-04-14
    • Min HeuYoung-woo Park
    • Min HeuYoung-woo Park
    • G02B15/14
    • G02B15/177
    • A zoom lens including, in a sequence from an object side to an image plane side: a first lens group having a negative refractive power; a second lens group having a positive refractive power; a third lens group having a negative refractive power; and a fourth lens group having a positive refractive power. During zooming from a wide angle position to a telephoto position, an interval between the first lens group and the second lens group decreases, an interval between the second lens group and the third lens group increases, and an interval between the third lens group and the fourth lens group decreases. When the location of an object changes from ∞ to a close location, the first lens group is moved toward the object to perform focusing.
    • 一种变焦透镜,包括从物体侧到像面侧的顺序:具有负屈光力的第一透镜组; 具有正屈光力的第二透镜组; 具有负屈光力的第三透镜组; 以及具有正屈光力的第四透镜组。 在从广角位置到望远位置的变焦期间,第一透镜组和第二透镜组之间的间隔减小,第二透镜组和第三透镜组之间的间隔增加,并且第三透镜组与第三透镜组之间的间隔 第四透镜组减少。 当物体的位置从∞变为关闭位置时,第一透镜组朝向物体移动以进行聚焦。