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1. (WO2017041456) CAMERA LENS

Pub. No.:    WO/2017/041456    International Application No.:    PCT/CN2016/075297
Publication Date: Fri Mar 17 00:59:59 CET 2017 International Filing Date: Thu Mar 03 00:59:59 CET 2016
IPC: G02B 9/62
Applicants: ZHEJIANG SUNNY OPTICS CO., LTD.
浙江舜宇光学有限公司
Inventors: HUANG, Lin
黄林
DAI, Fujian
戴付建
Title: CAMERA LENS
Abstract:
A camera lens, from an objective side to an image side, comprises: a first lens (E1) having a positive refractive power, an objective side surface thereof being a convex surface; a second lens (E2) having a refractive power; a third lens (E3) having a negative refractive power, an image side surface thereof being a concave surface at a paraxial position, and having at least one first point of inflexion; a fourth lens (E4) having a positive refractive power, an objective side surface thereof being a concave surface at a paraxial position, and having at least one second point of inflexion, and an image side surface of the fourth lens being a convex surface; a fifth lens (E5) having a negative refractive power, an image side surface of the fifth lens being a concave surface at a paraxial position, and an objective side surface thereof having at least one third point of inflexion; and a sixth lens (E6) having a negative refractive power, an image side surface of the sixth lens being a concave surface at a paraxial position. The camera lens satisfies the following relations: f/f6<-1.0; and f/f4>1.5, f being an effective focal length of the camera lens, f4 being an effective focal length of the fourth lens, and f6 being an effective focal length of the sixth lens. The camera lens is advantageous for enlarging a field angle while ensuring a high number of pixels, and ensures miniaturization of the camera lens.