Optical imaging lens and electronic device using optical imaging lens

Abstract

The invention relates to the field of optical imaging. The invention provides an optical imaging lens which comprises a first lens, an aperture, a second lens, a third lens, a fourth lens, and a fifth lens from an object side to an image side in sequence along an optical axis. Each lens has an object side face and an image side face. The object side face of the first lens is provided with a convex surface portion in the vicinity of the optical axis; the image side face of the second lens is provided with a concave surface portion in the vicinity of the circumference; the image side face of the third lens is provided with a concave surface portion in the vicinity of the optical axis and a convex surface portion in the vicinity of the circumference; the object side face of the fourth lens is provided with a concave surface portion in the vicinity of the circumference; and the fifth lens is made of plastics. The optical imaging lens meets the conditions of T5>T4, and BFL / G34>=3.44. An electronic device of the invention comprises a housing and an image module arranged in the housing. The image module comprises the optical imaging lens above, a lens cone, a module back holder unit and an image sensor. The optical imaging lens and the electronic device using the optical imaging lens are used for photography.

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 CMOS) technological progress and size reduction, the length of the optical lens loaded in the image module also needs to be shortened accordingly, but in order to avoid the decline of photographic effect and quality, good optical performance must still be taken into account when shortening the length of the optical lens. However, the most important characteristics of optical len...

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Problems solved by technology

[0003] However, optical lens design does not simply reduce the proportion of a lens with good imaging quality to produce an optical lens with both image quality and miniaturization. The design process involves material properties, and must also take into account the actual production aspects such as assembly yield. question

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