Optical imaging lens and electronic device applying optical imaging lens

Abstract

The invention relates to an optical imaging lens and an electronic device applying the optical imaging lens. The optical imaging lens comprises six lenses and is characterized in that an object side surface of the first lens is provided with a convex surface portion located in an area nearby the circumference; the second lens is made of plastic; an image side surface of the third lens is provided with a concave surface portion located in an area nearby an optical axis; the fourth lens is provided with a positive refractive index, an object side surface of the fourth lens is provided with a concave surface portion located in an area nearby the circumference, and an image side surface of the fourth lens is provided with a concave surface portion located in an area nearby the circumference; an image side surface of the fifth lens is provided with a convex surface portion located in an area nearby the optical axis; and an object side surface of the sixth lens is provided with a convex surface portion located in an area nearby the optical axis, and the sixth lens is made of the plastic. The electronic device comprises a casing and an image module, wherein the image module is installed in the casing and comprises the optical imaging lens, a lens cone, a module rear base unit and an image sensor. The optical imaging lens and the electronic device applying the optical imaging lens are enabled to have good practical performance, and thin and short structural design is facilitated.

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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