Title:
OPTICAL IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2019/047505
Kind Code:
A1
Abstract:
Provided is an optical imaging lens comprising, in order from the object side to the image side along the optical axis: a first lens (E1), a second lens (E2), a third lens (E3), a fourth lens (E4), a fifth lens (E5), and a sixth lens (E6). The first lens (E1) has a positive focal power, and an object side surface (S1) thereof is a convex surface. The second lens (E2) has a focal power, the object side surface (S3) thereof is a convex surface, and an image side surface (S4) thereof is a concave surface. The third lens (E3) and the fourth lens (E4) each has a focal power. The fifth lens (E5) has a positive focal power, and the image side surface (S10) of the fifth leans (E5) is a convex surface. The sixth lens (E6) has a negative focal power, and both the object side surface (S11) and the image side surface (S12) of the sixth leans (E6) are concave surfaces. The total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy f/EPD ≤ 1.6.
Inventors:
ZHANG KAIYUAN (CN)
Application Number:
PCT/CN2018/080124
Publication Date:
March 14, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B11/32; G02B9/62; G02B13/00
Foreign References:
| CN107436477A | 2017-12-05 | |||
| CN105278086A | 2016-01-27 | |||
| CN106556919A | 2017-04-05 | |||
| CN106199927A | 2016-12-07 | |||
| CN105487201A | 2016-04-13 | |||
| CN106443962A | 2017-02-22 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
Download PDF: