Camera lens group

Abstract

The invention discloses a camera lens group. The camera lens group sequentially comprises a first lens having optical power, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side along an optical axis. The first lens has positive focal power, the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the second lens has positive focal power; the third lens has negative focal power; at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth length and the sixth lens has a non-rotationally symmetric aspheric surface; and the effective focal length fx in the X-axis direction of the camera lens group and the effective focal length fy in the Y-axis direction of the camera lens group meet the following condition: 0.80 <fx / fy <1.20.

Description

technical field

[0001] The present application relates to a camera lens group, more particularly, to a camera lens group comprising six lenses. Background technique

[0002] Recently, the ultra-thin trend of mobile phones has become more and more obvious with the changes in market demand and the continuous upgrading of module technology. At the same time, not only the ultra-thin characteristics of the mobile phone lens are required, but also higher requirements for its imaging quality How to reduce the size while improving the imaging quality on the basis of the traditional structure is a major problem facing the design of mobile phone lenses recently.

[0003] Most of the camera lens groups used in mobile phone rear cameras adopt a 6-piece structure, and the current user market prefers ultra-thin lenses with large apertures and small F-numbers. However, most current lens groups use rotationally symmetric (axisymmetric) aspheric surfaces for lens surfaces. This type of rot...

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