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 lens. The optical imaging lens includes a first lens, a diaphragm, a second lens, a third lens, a fourth lens and a fifth lens in sequence from the object side to the image side, and the aforementioned lenses all include an object side and One like profile. The object side of the first lens has a convex portion located in the vicinity of the circumference; the image side of the third lens has a convex portion located in the vicinity of the optical axis; the image side of the fourth lens has a convex portion located in the vicinity of the optical axis. The concave portion of the nearby area; and the material of the fifth lens is plastic, the electronic device includes a casing and an image module installed in the casing, the image module includes the above-mentioned optical imaging lens, a lens barrel, A modular rear seat unit and an image sensor. The invention is beneficial to correct the aberration to ensure the imaging quality of the optical imaging lens, and can effectively shorten the length of the optical imaging lens.

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 trend of thinner and lighter cameras also increases the demand for miniaturization of image modules. In order to reduce the size of the optical imaging lens, the length of the optical imaging lens loaded in the image module also needs to be shortened accordingly. However, in order to avoid the reduction of photographic effect and quality, good optical performance must still be taken into account when shortening the length of the optical imaging lens. [0003] U.S. Patent Publication No. 800003...

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Problems solved by technology

[0003] U.S. Patent Publication No. 8000031 and Japanese Patent Publication No. 4847172 both disclose an optical lens composed of five lenses. 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 mobile phones. Thin design for portable electronic products such as digital cameras

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