Title:
OPTICAL IMAGING LENS
Document Type and Number:
WIPO Patent Application WO/2019/007045
Kind Code:
A1
Abstract:
An optical imaging lens comprising sequentially along an optical axis from an object side to an image side: 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). The first lens, the fourth lens, and the fifth lens all have either a positive or a negative focal power. The second lens has a positive focal power. The third lens has a negative focal power. At least one of the sixth lens or the seventh lens has a negative focal power, wherein the effective focal length f1 of the first lens and the effective focal length f2 of the second lens satisfy f2 / | f1 |＜0.5.
Inventors:
WENREN JIANKE (CN)
YANG LIN (CN)
YANG LIN (CN)
Application Number:
PCT/CN2018/074544
Publication Date:
January 10, 2019
Filing Date:
January 30, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B9/64
Foreign References:
| CN206930824U | 2018-01-26 | |||
| CN107102425A | 2017-08-29 | |||
| CN105829942A | 2016-08-03 | |||
| CN104950424A | 2015-09-30 | |||
| CN1924632A | 2007-03-07 | |||
| CN204065539U | 2014-12-31 | |||
| CN102455483A | 2012-05-16 | |||
| US20160139372A1 | 2016-05-19 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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