Title:
IMAGE PICKUP LENS GROUP
Document Type and Number:
WIPO Patent Application WO/2019/033755
Kind Code:
A1
Abstract:
An image pickup lens group. The image pickup lens group comprises, from an object side to an image side along an optical axis, a first lens (L1), a second lens (L2), a third lens (L3), a fourth lens (L4), and a firth lens (L5) in sequence. The first lens (L1) has negative focal power, and the image side surface (S2) thereof is a concave surface; the second lens (L2) has positive focal power, and the image side surface (S4) thereof is a convex surface; the third lens (L3), the fourth lens (L4), and the fifth lens (L5) all have positive focal power or negative focal power; and the total effective focal length f of the image pickup lens group and the entrance pupil diameter (EPD) of the image pickup lens group satisfy 0.8
Inventors:
JIA YUANLIN (CN)
Application Number:
PCT/CN2018/080109
Publication Date:
February 21, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/06
Foreign References:
| CN1072721MA | ||||
| CN207008164U | 2018-02-13 | |||
| CN103777323A | 2014-05-07 | |||
| CN102338923A | 2012-02-01 | |||
| CN102213816A | 2011-10-12 | |||
| US7697220B2 | 2010-04-13 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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