Title:
OPTICAL IMAGING CAMERA
Document Type and Number:
WIPO Patent Application WO/2019/052200
Kind Code:
A1
Abstract:
An optical imaging camera. The optical imaging camera successively comprises, along an optical axis from an object side to an image side: a first lens (L1), a second lens (L2), a third lens (L3) and a fourth lens (L4). The first lens (L1) has a negative optical power; the third lens (L3) has a positive optical power; and at least one of the second lens (L2) and the fourth lens (L4) has a positive optical power. A central thickness CT2 of the second lens (L2) on an optical axis and a central thickness CT4 of a fourth lens (L4) on an optical axis satisfy CT2/CT4＜0.5.
More Like This:
| WO/2010/122882 | WIDE ANGLE LENS AND IMAGING DEVICE |
| WO/2013/079705 | APPARATUS AND METHOD |
| JPH09145993 | SCANNING LENS |
Inventors:
JIA YUANLIN (CN)
Application Number:
PCT/CN2018/085632
Publication Date:
March 21, 2019
Filing Date:
May 04, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/00
Foreign References:
| CN107436478A | 2017-12-05 | |||
| CN207148398U | 2018-03-27 | |||
| CN207123643U | 2018-03-20 | |||
| CN202433590U | 2012-09-12 | |||
| CN104730690A | 2015-06-24 | |||
| US20070076308A1 | 2007-04-05 | |||
| CN101900868A | 2010-12-01 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
Download PDF:
Previous Patent: CAMERA LENS
Next Patent: UNMANNED AERIAL VEHICLE AND VIBRATION DAMPING DEVICE THEREOF
Next Patent: UNMANNED AERIAL VEHICLE AND VIBRATION DAMPING DEVICE THEREOF