Optical lens assembly

Abstract

The invention relates to the field of optical devices, in particular to an optical lens assembly used for a high-definition camera module with the specification being 300 thousand pixels and one quarter inch, and the camera module belongs to the field of electronic products of vehicle-mounted image systems. The optical lens assembly comprises a fixed diaphragm, a lens set and a glass optical filter, wherein the lens set comprises a first lens, a second lens, a third lens, the diaphragm, a fourth lens, a fifth lens, a sixth lens, the glass filter and an image surface which are sequentially distributed on the same optical axis in the direction of an object. By adopting the six spherical lenses made of different materials, one of the six spherical lenses is a glued glass lens assembly, and therefore various aberrations of light can be effectively eliminated, it is guaranteed that light is focused to a point accurately, high imaging quality of each lens is guaranteed, brightness is high, and high and low temperature resistance is achieved; a large aperture and high brightness are guaranteed through reasonable match of the lenses; the problem that processing difficulty of the glass lens is large is resolved, manufacturing cost is reduced, and production efficiency is improved.

Description

technical field [0001] The invention relates to the field of optical devices, in particular to an optical lens assembly of a high-definition 300,000-pixel 1 / 4-inch camera module used in the field of electronic products of a vehicle image system. Background technique [0002] At present, with the continuous rapid development of our country's economy, the number of private cars has increased sharply. Many novices who have just obtained their driver's licenses and female drivers have many potential traffic crises. Especially, safe parking seems to be a headache for every driver. Although the car imaging system has only entered the attention of domestic consumers in recent years, it has been widely popularized in many foreign regions, and some developed countries have even introduced laws to list it as a must-have product for automobiles. With the wide application of rear view cameras in vehicle imaging systems, the specification requirements for rear view cameras are getting hi...

AI Technical Summary

Problems solved by technology

However, the existing lens components used in the camera module of the vehicle imaging system have defects such as poor imaging effect, large aperture number, low brightness and small field of view, which are difficult to manufacture and are not suitable for mass production.

For example, the lens of Chinese patent 201210180293 is complicated, the brightness is not high enough, and the cost is high. Therefore, an optical lens assembly is urgently needed to overcome the above-mentioned defects

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