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    • 3. 发明授权
    • Imaging lens, imaging device, and mobile terminal
    • 成像镜头,成像设备和移动终端
    • US08456564B2
    • 2013-06-04
    • US12667252
    • 2008-06-25
    • Yusuke HiraoKeiji MatsusakaYasunari Fukuta
    • Yusuke HiraoKeiji MatsusakaYasunari Fukuta
    • H04N5/225G02B9/00G02B13/18G02B9/12
    • G02B13/006G02B13/0035G02B13/004G02B13/0085
    • Provided are a wafer scale lens, which is so short in an optical total length with respect to an image height that it can correct an aberration satisfactory, and an optical system including the wafer scale lens and having a thin lens element on the side closest to the image. The optical system includes a first lens having a positive refractive power relative to an object, and a second lens arranged on the side of the image of the first lens and having a recessed shape on the side of the object. At least one lens is arranged on the side of the second lens. When that one of the lenses arranged on the side of the image of the second lens, which is arranged on the side closest to the image, is an i-th lens (i>3), this i-th lens includes an i-th lens flat plate and is formed on the object side of the i-th lens flat plate but has a refractive index different from that of the i-th lens flat plate, and a lens element having a convex shape on the object side where the main light ray of the maximum image height passes. Moreover, the ratio between the optical axial distance (or the lens distance) between a (i−1)-th lens and the i-th lens and the optical axis distance (or the optical total length) from the object side face of the first lens to the image face is 0.01 to 0.15.
    • 本发明提供一种晶片级透镜,其相对于能够校正像差的图像高度的光学全长相当短,以及包括晶片标尺透镜的光学系统,并且在最靠近 图片。 光学系统包括相对于物体具有正折射力的第一透镜和布置在第一透镜的图像侧并且在物体侧具有凹陷形状的第二透镜。 至少一个透镜布置在第二透镜的侧面上。 当布置在布置在最靠近图像的一侧的第二透镜的图像侧的那一个透镜是第i个透镜(i> 3)时,该第i个透镜包括i- 并且形成在第i个透镜平板的物体侧上,但是具有与第i个透镜平板的折射率不同的折射率,以及在物体侧具有凸形的透镜元件, 最大图像高度的主光线通过。 此外,第(i-1)个透镜和第i个透镜之间的光学轴向距离(或透镜距离)与距离物体侧面的光轴距离(或光学总长度)之间的比率 第一个镜头到图像面是0.01到0.15。