Optical imaging lens

Abstract

The invention discloses an optical imaging lens which comprises the components of an aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, wherein the aperture, the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are successively arranged from an object side to an image side along an optical axis. Each lens comprises an object side surface and an image side surface. The first lens is made of plastic. The object side surface of the second lens has a recessed surface part in an area next to the optical axis. The image side surface of the second lens has a recessed surface part in an area next to the circumference. The object side surface of the third lens has a recessed surface part next to the circumference. The image side surface of the third lens has a recessed surface part next to the optical axis. The fourth lens has a positive refractive index. The image side surface of the fifth lens has a projected surface part in an area next to the optical axis. The sixth lens is made of plastic. The optical imaging lens is used for optical photographic imaging and satisfies requirements for high imaging quality and large field-of-view angle on the condition of short lens length.

Description

technical field [0001] The present invention relates to an optical element, and in particular to an optical imaging lens. Background technique [0002] In recent years, the popularity of mobile phones and digital cameras has made photography modules flourish. The thinness and lightness of mobile phones and digital cameras has also increased the demand for miniaturization of camera modules. With the technological progress and size reduction of the photosensitive coupling device (Charge Coupled Device, CCD) or complementary metal oxide semiconductor device (Complementary Metal-Oxide Semiconductor, CMOS), the optical imaging lens installed in the camera module also needs to be reduced in size, but the optical The good optical performance of the imaging lens is also necessary to take into account. [0003] For example, in the case of a six-piece lens structure, the distance from the object side of the first lens to the imaging surface on the optical axis is relatively large, w...

AI Technical Summary

Problems solved by technology

[0003] For example, in the case of a six-piece lens structure, the distance from the object side of the first lens to the imaging surface on the optical axis is relatively large, which is not conducive to the thinning of mobile phones and digital cameras. Lenses with a large angle of field and a short lens length

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