Optimal imaging lens and electronic device using the same

Abstract

The invention relates to an optical lens, particularly to an optical imaging lens and electronic device. The optical imaging lens includes fives lenses, and each lens has an object side face and an image side face; the image side face of the first lens has a concave surface part located in an area near the circumference; the object side face of the second lens has a convex surface part located in an area near the circumference, and the image side face of the second lens has a convex surface part located in an area near the circumference; the third lens is of a plastic material; the image side face of the fourth lens has a convex surface part located in an area near the circumference; and the object side face of the fifth lens has a concave surface part located in an area near the circumference, and (G12+G45) / T3>=1.5 and T3 / G12<=1.1 are satisfied. The electronic device includes an enclosure, and an image module which includes the abovementioned imaging lens, a lens barrel, a module holder unit and an image sensor. The electronic device has good practical performance and has a structural design of being light, thin, short and small.

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 lens, the length of the optical lens installed in the image module needs to be shortened accordingly. However, in order to avoid the degradation of the 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 lenses a...

AI Technical Summary

Problems solved by technology

[0003] U.S. Patent No. 8441736, the patent case discloses an optical lens composed of five lenses, however, the system length of the optical lens cannot be effectively reduced to a certain length to meet the design requirements of thin mobile phones

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