IMAGING LENS AND IMAGING APPARATUS
    2.
    发明申请
    IMAGING LENS AND IMAGING APPARATUS 有权
    成像镜头和成像设备

    公开(公告)号:US20160085049A1

    公开(公告)日:2016-03-24

    申请号:US14855965

    申请日:2015-09-16

    CPC classification number: G02B9/64 G02B15/161

    Abstract: An imaging lens consists of, in order from the object side, a front group, a stop, and a rear group, wherein the front group includes, in order from the most-object side, a positive first lens, a negative second lens, a negative third lens which are adjacently disposed, and further includes a final lens of the front group adjacent to the stop, with the surface toward the stop being convex toward the image side, the rear group includes, in order from the image side, two sets of cemented lenses having positive refractive powers, which are adjacently disposed, the object-side cemented lens of the two sets of cemented lenses is formed by cementing a positive lens and a negative meniscus lens together, and the image-side cemented lens is formed by cementing a negative meniscus lens and a positive lens together.

    Abstract translation: 成像透镜从物体侧依次包括前组,止挡和后组,其中前组从最物体侧依次包括正第一透镜,负第二透镜, 相邻设置的负第三透镜,并且还包括与所述挡块相邻的所述前组的最终透镜,朝向所述挡块的所述表面朝向所述像侧凸出,所述后组从所述像侧依次包括两个 一组具有正折射力的胶合透镜,其相邻设置,两组胶合透镜的物体侧胶合透镜通过将正透镜和负弯月形透镜粘合在一起而形成,并且形成图像侧胶合透镜 通过将负弯月透镜和正透镜固定在一起。

    IMAGING LENS AND IMAGING APPARATUS
    8.
    发明申请

    公开(公告)号:US20190258027A1

    公开(公告)日:2019-08-22

    申请号:US16401561

    申请日:2019-05-02

    Inventor: Takashi KUNUGISE

    Abstract: The imaging lens consists of, in order from an object side, a negative first lens group immovable during focusing, a stop and a positive second lens group moving during focusing. The first lens group consists of, in order from the object side, a meniscus lens having a convex surface toward the object side, a negative meniscus lens having a convex surface toward the object side, a negative lens, a biconvex lens, a negative meniscus lens having a convex surface toward the object side, and a positive lens having a convex surface toward the object side. Predetermined conditional expressions concerning a focal length f of the entire system, a focal length f1 of the first lens group, and a shape of an air lens between first and second lenses of the first lens group from an image side are satisfied.

    IMAGING LENS AND IMAGING APPARATUS
    9.
    发明申请

    公开(公告)号:US20190086650A1

    公开(公告)日:2019-03-21

    申请号:US16130123

    申请日:2018-09-13

    Abstract: The imaging lens consists of, in order from the object side, a first lens group, an aperture stop, a second lens group having a positive refractive power. During focusing from a distant object to a close-range object, the first lens group remains stationary, and the aperture stop and the second lens group integrally move to the object side. The imaging lens satisfies predetermined conditional expressions relating to a focal length of the whole system, a focal length of the first lens group, a principal point position of the second lens group, a focal length of the second lens group, a back focal length, and the like.

Patent Agency Ranking