Mobile device and optical imaging lens thereof
    6.
    发明授权
    Mobile device and optical imaging lens thereof 有权
    移动设备及其光学成像透镜

    公开(公告)号:US09541731B2

    公开(公告)日:2017-01-10

    申请号:US14608769

    申请日:2015-01-29

    摘要: The present invention provides a mobile device and an optical imaging lens thereof. The optical imaging lens comprises an aperture stop, first, second, third and fourth lens elements positioned sequentially from an object side to an image side. The first lens element with positive refracting power has a surface facing toward the object side. The second lens element with negative refracting power has a convex surface facing toward the object. The third lens element has a positive refracting power. The fourth lens element has a surface facing toward the object side with a concave portion in the vicinity of the optical axis and a surface facing toward the image side with a convex portion in the peripheral vicinity. The optical imaging lens of the present invention is capable of shortening the total length of the optical imaging lens efficiently and has good optical characteristics.

    摘要翻译: 本发明提供一种移动设备及其光学成像透镜。 光学成像透镜包括从物体侧到像侧依次定位的孔径光阑,第一,第二,第三和第四透镜元件。 具有正折射力的第一透镜元件具有朝向物体侧的表面。 具有负折射力的第二透镜元件具有朝向物体的凸表面。 第三透镜元件具有正折射力。 第四透镜元件具有朝向物体侧的表面,在光轴附近具有凹部,并且在周边附近具有面向像侧的凸部。 本发明的光学成像透镜能够有效地缩短光学成像透镜的总长度,并具有良好的光学特性。