公开(公告)号：US10721398B2

公开(公告)日：2020-07-21

申请号：US15838787

申请日：2017-12-12

申请人： Tamron Co., Ltd.

发明人： Koutarou Joujiki ,  Yasuhiko Obikane

IPC分类号： H04N5/232 ,  G02B23/26 ,  G02B13/18 ,  G02B7/02 ,  G02B17/02 ,  H04N5/225 ,  G02B9/62 ,  G02B13/00

摘要： An imaging optical system according to the present invention is the imaging optical system composed by arranging a front group, a stop, and a rear group in order from an object side, a lens arranged closest to the stop in the front group is a positive lens, a lens arranged closest to the stop in the rear group is also a positive lens, and specific conditional expressions are satisfied. In addition, an imaging apparatus according to the present invention includes the imaging optical system.

公开(公告)号：US20200341247A1

公开(公告)日：2020-10-29

申请号：US16687989

申请日：2019-11-19

申请人： TAMRON CO., LTD.

发明人： Junichi Yamazoe ,  Koutarou Joujiki

IPC分类号： G02B15/14 ,  G02B9/12

摘要： An imaging lens and an imaging device furnished with same, including a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power, disposed in sequence from the object side, wherein zooming from a point at infinity to an object at the near point is performed by moving the second lens group along an optical axis toward the object side while affixing the first lens group and third lens group, and satisfying predetermined conditional expressions.

公开(公告)号：US11307391B2

公开(公告)日：2022-04-19

申请号：US16687989

申请日：2019-11-19

申请人： TAMRON CO., LTD.

发明人： Junichi Yamazoe ,  Koutarou Joujiki

IPC分类号： G02B15/14 ,  G02B9/12 ,  H04N5/225

摘要： An imaging lens and an imaging device furnished with same, including a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power, disposed in sequence from the object side, wherein zooming from a point at infinity to an object at the near point is performed by moving the second lens group along an optical axis toward the object side while affixing the first lens group and third lens group, and satisfying predetermined conditional expressions.

公开(公告)号：US20180213151A1

公开(公告)日：2018-07-26

申请号：US15838787

申请日：2017-12-12

申请人： Tamron Co., Ltd.

发明人： Koutarou Joujiki ,  Yasuhiko Obikane

IPC分类号： H04N5/232 ,  G02B23/26 ,  G02B13/18 ,  G02B7/02 ,  G02B17/02 ,  H04N5/225

摘要： An imaging optical system according to the present invention is the imaging optical system composed by arranging a front group, a stop, and a rear group in order from an object side, a lens arranged closest to the stop in the front group is a positive lens, a lens arranged closest to the stop in the rear group is also a positive lens, and specific conditional expressions are satisfied. In addition, an imaging apparatus according to the present invention includes the imaging optical system.