Optical imaging lens and electronic device using 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 comprises six lenses. The image side surface of the first lens is provided with a convex surface portion in the vicinity of the circumference; the second lens has a negative refractive rate, and the image side surface of the second lens is provided with a concave surface portion in the vicinity of an optical axis; the object side face of the third lens is provided with a concave surface portion in the vicinity of the optical axis, and the image side surface of the third lens is provided with a convex surface portion in the vicinity of the optical axis; the object side face of the fourth lens is provided with a concave surface portion in the vicinity of the optical axis; the object side face of the fifth lens is provided with a concave surface portion in the vicinity of the circumference, and the image side surface thereof is provided with a convex surface portion in the vicinity of the optical axis; and the image side face of the sixth lens is provided with a concave surface portion in the vicinity of the optical axis. The optical imaging lens meets the condition of Gaa / G23>=3.1. The electronic device comprises a housing and an image module. The image module comprises the optical imaging lens above, a lens cone, a module back holder unit and an image sensor. The system length of the optical imaging lens can be reduced.

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...

AI Technical Summary

Problems solved by technology

[0003] U.S. Patent Nos. 8355215, 8432619 and ROC Application No. 201337319 all disclose an optical lens composed of six lenses. However, the system length of these optical lenses cannot be effectively reduced to a certain length to meet the needs of mobile phones. Thin design requirements

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