Optical imaging lens and electronic device using the optical imaging lens

Abstract

The invention relates to an optical imaging lens and an electronic device using the optical imaging lens. The optical imaging lens includes six lenses, the object side of the first lens has a convex surface located in the vicinity of the circumference; the second lens is made of plastic material; the image side of the third lens has a concave surface located in the vicinity of the optical axis; the fourth lens With positive refractive power, the object side of the fourth lens has a concave surface located in the vicinity of the circumference, and the image side of the fourth lens has a concave surface located in the vicinity of the circumference; the image side of the fifth lens has a concave surface located near the optical axis. a convex portion in the area; and the object side of the sixth lens has a convex portion located in a region near the optical axis, and the sixth lens is made of plastic material. The electronic device includes a casing; and an image module installed in the casing, and includes the above-mentioned optical imaging lens, a lens barrel, a module rear seat unit, and an image sensor. The structure design of the present invention has good practical performance and contributes to lightness, thinness and miniaturization.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical imaging lens and an electronic device using the optical imaging lens. Background technique [0002] In recent years, the popularization of portable electronic products such as mobile phones and digital cameras has led to the vigorous development of imaging module related technologies. The imaging module mainly includes components such as optical imaging lens, module holder unit and sensor. The thin and light trend of digital cameras also makes the miniaturization of image modules more and more demanding. For the technological progress and size reduction of CMOS), the length of the optical imaging lens loaded in the image module also needs to be shortened accordingly. performance. However, the most important characteristics of optical imaging lenses are nothing more than imaging quality and volume. [0003] The known optical imaging lenses are mostly four-piece optical imaging lens...

AI Technical Summary

Problems solved by technology

[0003] The known optical imaging lenses are mostly four-piece optical imaging lenses. Due to the small number of lenses, the length of optical imaging lenses can be shortened. However, with the increasing demand for high-standard products, optical imaging lenses are used in The demand for picture quality and quality is rapidly increasing, and it is extremely necessary to develop products with higher specifications, such as optical imaging lenses using a six-element lens structure. However, known six-element lenses are shown in US Patent Nos. US 7663814 and US 8040618. The lens length is as high as 21mm or more, which is not conducive to the thinning of portable electronic products such as mobile phones and digital cameras. Therefore, it is extremely necessary to develop a lens with good image quality and shortened lens length

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