公开(公告)号：US11209631B2

公开(公告)日：2021-12-28

申请号：US15775718

申请日：2016-11-09

申请人： Konica Minolta, Inc.

发明人： Maiko Nishida ,  Keiji Matsusaka

IPC分类号： G02B13/02 ,  G02B3/04 ,  G02B13/14 ,  G02B13/00 ,  G02B13/18 ,  G02B9/12

摘要： A lens unit includes: an imaging optical system; and a lens barrel holding the imaging optical system. The imaging optical system includes, in order from an object side: a first lens having a positive refractive power; a second lens including at least one surface having an aspherical shape; and a third lens having a negative refractive power, at least one surface having an aspherical shape, and an inflection point other than an intersection with an optical axis.

公开(公告)号：US20180348488A1

公开(公告)日：2018-12-06

申请号：US15775718

申请日：2016-11-09

申请人： Konica Minolta, Inc.

发明人： Maiko Nishida ,  Keiji Matsusaka

IPC分类号： G02B13/02 ,  G02B13/18 ,  G02B9/02 ,  G02B9/12 ,  G02B13/14

CPC分类号： G02B13/02 ,  G02B13/14 ,  G02B13/18

摘要： A lens unit includes: an imaging optical system; and a lens barrel holding the imaging optical system. The imaging optical system includes, in order from an object side: a first lens having a positive refractive power; a second lens including at least one surface having an aspherical shape; and a third lens having a negative refractive power, at least one surface having an aspherical shape, and an inflection point other than an intersection with an optical axis.