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Patent Searching and Data


Title:
CAMERA AND IMAGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/190508
Kind Code:
A1
Abstract:
A camera and an imaging apparatus. The camera comprises: a front camera group close to an object side, a reflecting element (3), a diaphragm (5) and a rear camera group close to an image side, wherein the front camera group comprises: a first lens (1) and a second lens (2); the rear camera group comprises: a third lens (4), a fourth lens (6), a fifth lens (7), a sixth lens (8) and a seventh lens (9); the front camera group is a negative refractive index lens group, and the rear camera group is a positive refractive index lens group; the reflecting element (3) is arranged between the second lens (2) and the third lens (4); and the diaphragm (5) is arranged between the third lens (4) and the fourth lens (6). By means of the camera and the imaging apparatus, vignetting would not be produced in a large field of view, so that imaging illuminance in the field of view is uniform, and light intensity energy in a scene can be absorbed to the greatest extent. Moreover, in the camera, in consideration of parasitic light forming a light path, the structure of the lenses is controlled to eliminate ghosting produced by the camera, thereby improving the signal-to-clutter ratio of a system.

Inventors:
SONG WEITAO (CN)
HUANG YETAO (CN)
LIU XUMING (CN)
ZENG JIYONG (CN)
Application Number:
PCT/CN2016/111044
Publication Date:
November 09, 2017
Filing Date:
December 20, 2016
Export Citation:
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Assignee:
BEIJING MADV TECH CO LTD (CN)
JIANGXI LIANCHUANG ELECT CO LTD (CN)
BEIJING XIAOMI MOBILE SOFTWARE CO LTD (CN)
International Classes:
G02B13/06; G03B37/00
Foreign References:
CN105759404A2016-07-13
CN205539662U2016-08-31
CN105467560A2016-04-06
CN105527695A2016-04-27
CN203133374U2013-08-14
CN103703403A2014-04-02
CN104142565A2014-11-12
JP2014056048A2014-03-27
Attorney, Agent or Firm:
BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)
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