Optical imaging lens with high light flux and large image surface

Abstract

The invention relates to the technical field of lenses. The invention discloses an optical imaging lens with high light flux and a large image surface. The optical imaging lens comprises fourteen lenses, the first lens, the fourth lens, the sixth lens, the eighth lens and the ninth lens are convex-convex lenses with positive refractive indexes; the second lens and the tenth lens are convex-concavelenses with negative refractive indexes; the third lens and the seventh lens are concave-concave lenses with negative refractive indexes; the fifth lens and the twelfth lens are plano-convex lenses with positive refractive indexes; the eleventh lens is a convex-concave lens with a positive refractive index; the thirteenth lens is a concave-convex lens with negative refractive index; the fourteenth lens is a convex-plane lens with a positive refractive index; the third lens and the fourth lens are glued with each other; the tenth lens and the eleventh lens are glued with each other; and the twelfth lens and the thirteenth lens are glued with each other. The optical imaging lens has the advantages of high resolution and high imaging quality; the image surface is large; light transmission ishigh; high and low temperature defocusing is low or no defocusing is caused; and a CRA main light incident angle is realized.

Description

technical field [0001] The invention belongs to the field of lens technology, and in particular relates to an optical imaging lens with a large image surface. Background technique [0002] With the continuous advancement of science and technology and the continuous development of society, optical imaging lenses have also developed rapidly in recent years, and are widely used in smart phones, tablet computers, video conferencing, vehicle monitoring, security monitoring, machine vision, intelligent transportation Systems and other fields, therefore, the requirements for optical imaging lenses are getting higher and higher. [0003] In intelligent transportation systems, the performance of optical imaging lenses is critical and will affect the reliability of the entire system. However, the optical imaging lenses currently used in intelligent transportation systems have low resolution and low pixels; when used in high and low temperature environments, the out-of-focus is seriou...

AI Technical Summary

Problems solved by technology

However, the optical imaging lenses currently used in intelligent transportation systems have low resolution and low pixels; when used in high and low temperature environments, the out-of-focus is serious; the image plane in the 16mm focal length segment is small, generally only reaching Φ16mm; Generally, it is relatively small. In low-light environment, the amount of incoming light is less, and the shooting image is darker; when the image surface is larger, the incident angle of the chief ray of CRA is larger, greater than 12°, and it is easy to match with the sensor of a smaller CRA. Causes the problem of dark edges and color cast, which can no longer meet the increasing requirements of intelligent transportation systems, and urgently needs to be improved

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