Title:
OPTICAL IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2019/080528
Kind Code:
A1
Abstract:
Disclosed is an optical imaging lens. Along an optical axis from an object side to an image side, the lens sequentially comprises: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), a sixth lens (E6), and a seventh lens (E7) having focal power; the first lens (E1) has a negative focal power; an object side surface of the first lens (E1) is a convex surface, and an image side surface thereof is a concave surface; an image side surface of the third lens (E3) is a concave surface; an object side surface of the seventh lens (E7) is a concave surface; and the total effective focal length f of the optical imaging lens, the effective focal length f4 of the fourth lens (E4) and the effective focal length f5 of the fifth lens (E5) satisfy |f/f4|+|f/f5|＜1.
Inventors:
ZHANG KAIYUAN (CN)
LI MING (CN)
XU BIAO (CN)
LI MING (CN)
XU BIAO (CN)
Application Number:
PCT/CN2018/092868
Publication Date:
May 02, 2019
Filing Date:
June 26, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/18; G02B13/00
Foreign References:
| CN107621682A | 2018-01-23 | |||
| CN106199922A | 2016-12-07 | |||
| CN202886713U | 2013-04-17 | |||
| CN105319681A | 2016-02-10 | |||
| CN105829942A | 2016-08-03 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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