Title:
PHOTOGRAPHIC OBJECTIVE LENS
Document Type and Number:
WIPO Patent Application WO/2016/037323
Kind Code:
A1
Abstract:
A photographic objective lens, comprising seven lenses, wherein a first lens is a meniscus lens; a second lens is a meniscus lens; a third lens is a meniscus lens; a fourth lens is a biconcave lens; a fifth lens is a biconvex lens; a sixth lens is a biconvex lens; and a seventh lens is a meniscus lens. The first lens comprises a first curved face and a second curved face; the second lens comprises a third curved face and a fourth curved face; the third lens comprises a fifth curved face and a sixth curved face; the fourth lens comprises a seventh curved face and an eighth curved face; the fifth lens comprises a ninth curved face and a tenth curved face; the sixth lens comprises an eleventh curved face and a twelfth curved face; and the seventh lens comprises a thirteenth curved face and a fourteenth curved face, wherein the first curved face to the fourteenth curved face are sequentially arranged in the transmission direction of incident light rays.
Inventors:
LI JIAYING (CN)
ZHOU CHAOMING (CN)
SUN BO (CN)
GAO YUNFENG (CN)
ZHOU CHAOMING (CN)
SUN BO (CN)
GAO YUNFENG (CN)
Application Number:
PCT/CN2014/086190
Publication Date:
March 17, 2016
Filing Date:
September 10, 2014
Export Citation:
Assignee:
HANS LASER TECHNOLOGY CO LTD (CN)
International Classes:
G02B9/64
Foreign References:
| CN103837974A | 2014-06-04 | |||
| CN1383015A | 2002-12-04 | |||
| CN102436058A | 2012-05-02 | |||
| US20130194678A1 | 2013-08-01 | |||
| JP2006301393A | 2006-11-02 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
广州华进联合专利商标代理有限公司 (CN)
广州华进联合专利商标代理有限公司 (CN)
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