公开(公告)号：US20150370053A1

公开(公告)日：2015-12-24

申请号：US14747864

申请日：2015-06-23

Applicant: OLYMPUS IMAGING CORP.

Inventor： Hirohiko Kimata ,  Yasuharu Yamada ,  Kenichi Nagasawa ,  Hiroshi Kodama ,  Toshio Takahashi ,  Kento Kokubu

IPC: G02B15/22

CPC classification number: G02B15/22 ,  G02B15/14 ,  G02B15/173 ,  G02B15/177

Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.

Abstract translation: 在固定的总长度的变焦透镜中，在从广角端向望远端改变放大倍数时，第一透镜组在第二透镜组移动的同时被固定，第三和第四透镜组是 相对于广角端部位于长焦端的物体侧，使得第二透镜组和第三透镜组之间的间隔在望远端相对于广角端减小; 第三透镜组和第四透镜组之间的间隔在望远端相对于广角端增加; 并且第四透镜组和第五透镜组之间的间隔在望远端相对于广角端增加，并且在从远程对象点聚焦近物点时，第二透镜组移动。

公开(公告)号：US20140218808A1

公开(公告)日：2014-08-07

申请号：US14172325

申请日：2014-02-04

Applicant: OLYMPUS IMAGING CORP.

Inventor： Yasuji Ogata ,  Hirohiko Kimata

IPC: G02B15/14

CPC classification number: G02B15/16 ,  G02B3/02 ,  G02B9/62 ,  G02B13/009 ,  G02B15/14 ,  G02B15/163 ,  G02B15/17 ,  G02B15/173 ,  G02B15/20 ,  G02B27/64 ,  G03B5/00 ,  G03B21/14

Abstract: A zoom lens comprises a first lens unit G1 having a positive refractive power, a second lens unit G2 having a negative refractive power, a third lens unit G3 having a positive refractive power, a fourth lens unit G4 having a negative refractive power, a fifth lens unit G5, and a sixth lens unit G6 having a positive refractive power. Zooming from a wide angle end to a telephoto end is carried out by changing a distance between the lens units, and a distance between the first lens unit G1 and the third lens unit G3 narrows at the telephoto end than at the wide angle end, and the first lens unit G1 is stationary at the time of zooming from the wide angle end to the telephoto end, and lens units from the second lens unit G2 to the fifth lens unit G5 move.

Abstract translation: 变焦透镜包括具有正折光力的第一透镜单元G1，具有负折光力的第二透镜单元G2，具有正折光力的第三透镜单元G3，具有负折光力的第四透镜单元G4，第五透镜单元 透镜单元G5和具有正折光力的第六透镜单元G6。 通过改变透镜单元之间的距离来实现从广角端到长焦端的放大，并且第一透镜单元G1和第三透镜单元G3之间的距离在望远端比在广角端窄，并且 第一透镜单元G1在从广角端到远摄端的变焦时是静止的，并且从第二透镜单元G2到第五透镜单元G5的透镜单元移动。

公开(公告)号：US09097884B2

公开(公告)日：2015-08-04

申请号：US14140346

申请日：2013-12-24

Applicant: OLYMPUS IMAGING CORP.

Inventor： Hirohiko Kimata ,  Yasuharu Yamada ,  Kenichi Nagasawa ,  Hiroshi Kodama ,  Toshio Takahashi ,  Kento Kokubu

IPC: G02B15/14 ,  G02B15/22 ,  G02B15/177 ,  G02B15/173

CPC classification number: G02B15/22 ,  G02B15/14 ,  G02B15/173 ,  G02B15/177

Abstract: In a zoom lens of a fixed total length, at the time of changing the magnification from the wide-angle end toward the telephoto end, the first lens group is anchored while the second lens group is moved, and the third and fourth lens groups are moved so as to be located at the object side of the telephoto end relative to the wide-angle end, such that: the interval between the second and third lens groups is decreased at the telephoto end relative to the wide-angle end; the interval between the third and fourth lens groups is increased at the telephoto end relative to the wide-angle end; and the interval between the fourth and fifth lens groups is increased at the telephoto end relative to the wide-angle end, and at the time of focusing a near object point from a remote object point, the second lens group is moved.

Abstract translation: 在固定的总长度的变焦透镜中，在从广角端向望远端改变放大倍数时，第一透镜组在第二透镜组移动的同时被固定，第三和第四透镜组是 相对于广角端部位于长焦端的物体侧，使得第二透镜组和第三透镜组之间的间隔在望远端相对于广角端减小; 第三透镜组和第四透镜组之间的间隔在望远端相对于广角端增加; 并且第四透镜组和第五透镜组之间的间隔在望远端相对于广角端增加，并且在从远程对象点聚焦近物点时，第二透镜组移动。