Title:
CAMERA LENS
Document Type and Number:
WIPO Patent Application WO/2016/109938
Kind Code:
A1
Abstract:
A camera lens having sequentially from an object side to an image side: a first lens (E1) having the object-side surface (S1) being a convex surface having a positive refractive power, a second lens (E2), a third lens (E3), a fourth lens (E4) having the object side surface (S7) being a concave surface, a fifth lens (E5) having a positive refractive power, a sixth lens (E6) and a seventh lens (E7) having a negative refractive power. The camera lens comprises an aperture stop (STO) arranged between a photographed object and the second lens (E2). The camera lens satisfies the formula of: TTL/ImgH < 2.4 ; 1.5 < CT1/CT2 < 4, where TTL is the total length of the camera lens, ImgH is the radius of an effective pixel region on an imaging surface (S17), CT1 is the center thickness of the first lens, and CT2 is the center thickness of the second lens. The camera lens has an increased viewing angle, is compact, and provides high image quality.
Inventors:
DAI FUJIAN (CN)
HUANG LIN (CN)
HUANG LIN (CN)
Application Number:
PCT/CN2015/070183
Publication Date:
July 14, 2016
Filing Date:
January 06, 2015
Export Citation:
Assignee:
ZHEJIANG SUNNY OPTICS CO LTD (CN)
International Classes:
G02B9/64; G02B13/18
Foreign References:
| CN202886720U | 2013-04-17 | |||
| CN204028445U | 2014-12-17 | |||
| CN203965708U | 2014-11-26 | |||
| US4597641A | 1986-07-01 | |||
| CN203941337U | 2014-11-12 |
Other References:
See also references of EP 3244248A4
None
None
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
北京清亦华知识产权代理事务所（普通合伙） (CN)
北京清亦华知识产权代理事务所（普通合伙） (CN)
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