公开(公告)号：US20160231544A1

公开(公告)日：2016-08-11

申请号：US15010432

申请日：2016-01-29

Applicant: HOYA CORPORATION

Inventor： Koichiro HAYAKAWA ,  Daisuke KOREEDA

IPC: G02B15/16 ,  G02B27/00 ,  G02B15/20

CPC classification number: G02B15/173

Abstract: A zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group and a positive fourth lens group, in that order from the object side. Upon zooming from the short to long focal length extremities, each of the first through fourth lens groups move along the optical axis thereof. The following conditions (1) and (2) are satisfied: 1.05

Abstract translation: 变焦透镜系统从物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组和正的第四透镜组。 在从短焦距到长焦距四极放大时，第一至第四透镜组中的每一个沿着其光轴移动。 满足以下条件（1）和（2）：1.05