Title:
OPTICAL IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/174364
Kind Code:
A1
Abstract:
An optical imaging system, comprising, in order from an object side to an image side along an optical axis: 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 (E1) has a positive optical power, the object side surface (S1) thereof is a convex surface, and the image side surface (S2) thereof is a concave surface; the second lens (E2) has a positive optical power; the third lens (E3) has a negative optical power, the object side surface (S5) thereof is a convex surface, and the image side surface (S6) thereof is a concave surface; each of the fourth lens (E4), the fifth lens (E5), and the sixth lens (E6) has an optical power; and the seventh lens (E7) has an optical power, the object side surface (S13) thereof is a convex surface, and the image side surface (S14) thereof is a concave surface. Half of the maximum view angle HFOV of the optical imaging system satisfies HFOV ≥ 45.0°.
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Inventors:
GAO XUE (CN)
LI MING (CN)
WENREN JIANKE (CN)
LI MING (CN)
WENREN JIANKE (CN)
Application Number:
PCT/CN2018/125311
Publication Date:
September 19, 2019
Filing Date:
December 29, 2018
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICAL CO LTD (CN)
International Classes:
G02B13/00
Foreign References:
| CN108279484A | 2018-07-13 | |||
| CN106324811A | 2017-01-11 | |||
| CN202886720U | 2013-04-17 | |||
| CN107436481A | 2017-12-05 | |||
| CN106154513A | 2016-11-23 | |||
| CN105807401A | 2016-07-27 | |||
| US20170357081A1 | 2017-12-14 |
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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