Title:
OPTICAL IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2019/024490
Kind Code:
A1
Abstract:
An optical imaging lens, comprising 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) sequentially from an object side to an image side along an optical axis. The first lens (E1) has positive refractive power; the second lens (E2), the third lens (E3) and the sixth lens (E6) have negative refractive power; at least one of the fourth lens (E4) and the fifth lens (E5) has positive refractive power; the object side surface of the first lens (E1) and the image side surface of the fourth lens (E4) are convex surfaces; the image side surface of the second lens (E2) and the image side surface of the sixth lens (E6) are concave surfaces; and the total effective focal length f of the optical imaging lens and the curvature radius R9 of the image side surface of the fifth lens meet f/|R9|≤0.35. Therefore, the imaging effect under a dark environment can be enhanced while the aberration of marginal rays is improved.
More Like This:
JP6757480 | Imaging lens |
WO/2011/129319 | IMAGE PICKUP LENS |
JP2006228877 | LIGHT RECEIVING DEVICE AND OPTICAL TRANSMITTER/RECEIVER MODULE USING THE SAME |
Inventors:
LI MING (CN)
YANG JIAN (CN)
HE LINGBO (CN)
YANG JIAN (CN)
HE LINGBO (CN)
Application Number:
PCT/CN2018/077203
Publication Date:
February 07, 2019
Filing Date:
February 26, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/00
Domestic Patent References:
WO2015005417A1 | 2015-01-15 |
Foreign References:
CN107219613A | 2017-09-29 | |||
CN206930826U | 2018-01-26 | |||
CN106990511A | 2017-07-28 | |||
CN202522758U | 2012-11-07 | |||
CN104122650A | 2014-10-29 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
Download PDF: