Optical lens assembly

Abstract

The invention relates to an optical lens assembly used for a high-definition camera module with the specification being 3 million pixels and one third inch, and the camera module belongs to the field of digital electronic products for continuous video shooting. 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 and a sixth lens which are sequentially arranged on the same optical axis in the direction of an object, and by means of match of the lenses, the height of each lens is effectively controlled to be 19.2 mm, the horizontal field angle is greater than 120 degrees, and the F / NO is less than 2.0; through combined match of the plastic lenses and the glass lenses, the problem that processing difficulty of the glass lenses is high can be resolved, the number of the glass lenses is reduced, the weight of the lenses is reduced, manufacturing cost is lowered, production efficiency is improved, and high imaging quality and high brightness of the lenses are guaranteed.

Description

technical field [0001] The invention relates to the field of optical devices, in particular to an optical lens assembly for continuous video shooting of wide-angle digital electronic products with high-definition 3 million pixels and a 1 / 3-inch standard camera module. Background technique [0002] At present, with the continuous rapid development of our country's economy, the number of private cars has increased sharply. Buying a car and taking a driver's license test have become a common phenomenon. Novices on the road lead to the existence of many potential crises; The victims are miserable; with the continuous improvement of legal awareness, the requirements for traffic accident claims are higher, and the compensation items are more diverse, and insurance companies are suffering from malicious auto insurance claims. In the past, when hitting pedestrians, the driver was usually shown as a strong person. Because there was no conclusive evidence, the traffic police often bla...

AI Technical Summary

Problems solved by technology

However, the existing lens components used in camera modules have the defects of poor imaging effect, large aperture number, low brightness and high cost.

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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