Optical imaging lens and electronic device utilizing same

Abstract

The invention discloses an optical imaging lens and an electronic device utilizing the same. The optical imaging lens sequentially comprises an aperture, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens from an object side to an image side. The first lens is provided with the refractive rate. An image side of the second lens is provided with a concave surface portion in the vicinity of the circumference, an object side of the third lens is provided with a concave surface portion in the vicinity of the circumference, an object side of the fourth lens is provided with a concave surface portion in the vicinity of the optical axis, the fifth lens is provided with refractive rate, and an object side of the sixth lens is provided with a convex surface portion in the vicinity of the optical axis. The optical imaging lens meets the condition of ALT / T5<=6.90. The electronic device comprises a casing and an imaging module mounted in the casing. The imaging module comprises the optical imaging lens, a lens cone, a module holder unit and an image sensor. By the aid of matching of the lenses, the optical imaging lens has the advantages that imaging quality and microminiaturization can be improved.

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. [0003] U.S. Patent No. 8,355,215 discloses an optical lens composed of six lenses. The length of the lens is as long as 2 cm. Although the image quality is acceptable, such a large lens cannot be used in...

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Problems solved by technology

[0003] U.S. Patent No. 8,355,215 discloses an optical lens composed of six lenses. The length of the lens is as long as 2 cm. Although the image quality is acceptable, such a large lens cannot be used in the pursuit of thinness, lightness and shortness. 1 to 2 cm thin electronic devices

[0004] U.S. Patent No. 8,432,619 discloses an optical lens composed of six lenses. Although the length of the lens can be shortened to 0.5cm, which can meet the requirements of miniaturization, its imaging distortion (Distortion) is as high as 25%, that is, Poor image quality to meet consumer electronics specifications

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