Title:
OPTICAL IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/000986
Kind Code:
A1
Abstract:
An optical imaging system, wherein the optical axis of the optical imaging system follows an object side to image side order 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). Wherein, the first lens and the fourth lens can both have a negative power; the second lens and the sixth lens can both have either a positive power or a negative power; and the effective focal length f3 of the third lens (E3) and the effective focal length f5 of the fifth lens (E5) can achieve 0＜f3/f5＜0.8.
Inventors:
ZHANG KAIYUAN (CN)
JIA YUANLIN (CN)
JIA YUANLIN (CN)
Application Number:
PCT/CN2018/077207
Publication Date:
January 03, 2019
Filing Date:
February 26, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/00
Foreign References:
| CN107121756A | 2017-09-01 | |||
| CN206960762U | 2018-02-02 | |||
| CN106019535A | 2016-10-12 | |||
| CN105204143A | 2015-12-30 | |||
| CN105892020A | 2016-08-24 | |||
| CN105988192A | 2016-10-05 | |||
| US20130286488A1 | 2013-10-31 | |||
| US20130088788A1 | 2013-04-11 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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