公开(公告)号：US08218244B2

公开(公告)日：2012-07-10

申请号：US12951307

申请日：2010-11-22

Applicant: Shih-Mu Lin ,  Chao-Hung Lin ,  Sheng-Fang Cheng

Inventor： Shih-Mu Lin ,  Chao-Hung Lin ,  Sheng-Fang Cheng

IPC: G02B15/14

CPC classification number: G02B15/177 ,  G02B13/0045 ,  G02B13/009

Abstract: A miniature zoom lens includes a first, a second and a third lens groups arranged along an optical axis and from an object side to an image side in sequence. The refractive powers of the three lens groups are negative, positive and positive, respectively. The first lens group is fixed at a predetermined position. The second lens group is movable along the optical axis in accordance with a change of magnification. The third lens group is movable along the optical axis for keeping an image plane fixed at an image sensor. The first lens group is in resting state and the second and the third lens groups are movable during zoom-in or zoom-out operation of the miniature zoom lens. In addition, the miniature zoom lens can be composed of at least seven pieces of lens, thus the cost is reduced, the manufacture is easy and the assembly is simple.

Abstract translation: 微型变焦透镜包括沿着光轴并且从物体侧到像侧依次布置的第一透镜组，第二透镜组和第三透镜组。 三个透镜组的折射力分别为负，正和正。 第一透镜组固定在预定位置。 第二透镜组可以根据放大率的变化沿光轴移动。 第三透镜组可沿着光轴移动，以将图像平面固定在图像传感器上。 第一透镜组处于静止状态，并且第二和第三透镜组在微型变焦透镜的放大或缩小操作期间是可移动的。 此外，微型变焦透镜可以由至少七个透镜组成，因此成本降低，制造容易并且组装简单。

公开(公告)号：US20130301142A1

公开(公告)日：2013-11-14

申请号：US13468662

申请日：2012-05-10

Applicant: SHENG-FANG CHENG ,  SHIH-MU LIN ,  YING-HSIN LIN

Inventor： SHENG-FANG CHENG ,  SHIH-MU LIN ,  YING-HSIN LIN

IPC: G02B15/14

CPC classification number: G02B15/173 ,  G02B13/18 ,  G02B15/20

Abstract: A telephoto zoom lens include a first, a second, a third and a fourth lens groups sequentially arranged along an optical axis and from an object side to an image side. The refractive powers of the four lens groups are positive, negative, positive and positive, respectively. The first lens group is fixed at a first predetermined position. The second lens group is movable along the optical axis depending on the variation of the magnifying power of the zoom lens. The third lens group is fixed at a second predetermined position. The fourth lens group is movable along the optical axis to keep an image plane generated by the zoom lens to project accurately onto an image sensor. Hence, the first and the third lens groups are in resting state, and the second and the fourth lens groups are movable during zoom-in or zoom-out operation of the zoom lens.

Abstract translation: 长焦变焦透镜包括沿着光轴并且从物体侧到像侧顺序排列的第一，第二，第三和第四透镜组。 四个透镜组的折射力分别为正，负，正和正。 第一透镜组固定在第一预定位置。 第二透镜组可以根据变焦透镜的放大倍率的变化沿光轴移动。 第三透镜组固定在第二预定位置。 第四透镜组可沿着光轴移动以保持由变焦透镜产生的图像平面精确投影到图像传感器上。 因此，第一和第三透镜组处于静止状态，并且第二透镜组和第四透镜组在变焦透镜的放大或缩小操作期间是可移动的。

公开(公告)号：US20120127588A1

公开(公告)日：2012-05-24

申请号：US12951307

申请日：2010-11-22

Applicant: SHIH-MU LIN ,  CHAO-HUNG LIN ,  SHENG-FANG CHENG

Inventor： SHIH-MU LIN ,  CHAO-HUNG LIN ,  SHENG-FANG CHENG

IPC: G02B15/14

CPC classification number: G02B15/177 ,  G02B13/0045 ,  G02B13/009

Abstract: A miniature zoom lens includes a first, a second and a third lens groups arranged along an optical axis and from an object side to an image side in sequence. The refractive powers of the three lens groups are negative, positive and positive, respectively. The first lens group is fixed at a predetermined position. The second lens group is movable along the optical axis in accordance with a change of magnification. The third lens group is movable along the optical axis for keeping an image plane fixed at an image sensor. The first lens group is in resting state and the second and the third lens groups are movable during zoom-in or zoom-out operation of the miniature zoom lens. In addition, the miniature zoom lens can be composed of at least seven pieces of lens, thus the cost is reduced, the manufacture is easy and the assembly is simple.

Abstract translation: 微型变焦透镜包括沿着光轴并且从物体侧到像侧依次布置的第一透镜组，第二透镜组和第三透镜组。 三个透镜组的折射力分别为负，正和正。 第一透镜组固定在预定位置。 第二透镜组可以根据放大率的变化沿光轴移动。 第三透镜组可沿着光轴移动，以将图像平面固定在图像传感器上。 第一透镜组处于静止状态，并且第二和第三透镜组在微型变焦透镜的放大或缩小操作期间是可移动的。 此外，微型变焦透镜可以由至少七个透镜组成，因此成本降低，制造容易并且组装简单。