optical lens

Abstract

The present application discloses an optical lens, and the optical lens may include sequentially from the object side to the image side along the optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. lens. Wherein, the first lens can have negative refractive power, and its object side is convex, and the image side is concave; the second lens can have positive refractive power, and its object side is convex; the fifth lens can have positive refractive power, and its object side and the image side are both convex; the sixth lens can have negative refractive power, and its image side is concave; and the third lens and the fourth lens can be glued together to form a cemented lens. According to the optical lens of the present application, at least one beneficial effect of high resolution, miniaturization, small diameter at the front end, telephoto, large field of view, small chief ray angle, and back focal length can be realized.

Description

technical field [0001] The present application relates to an optical lens, and more particularly, the present application relates to an optical lens including six lenses. Background technique [0002] As the "eyes" of the car, the vehicle lens plays a very important role in the vehicle assisted driving system. With the rapid development of technology, people's requirements for the vehicle lens are getting higher and higher. High resolution, miniaturization, and stability in different working environments have always been the technical bottlenecks of vehicle-mounted lenses. At present, the popularization and application of vehicle-mounted lenses has made people have higher and higher requirements for the resolution of vehicle-mounted lenses. From the original megapixels, Continuously improve the popularity in the direction of 2M. [0003] However, as the resolution increases, the volume and weight of the corresponding lens will increase, and the contradiction between lens re...

AI Technical Summary

Problems solved by technology

[0003] However, as the resolution increases, the volume and weight of the corresponding lens will increase, and the contradiction between lens resolution and miniaturization becomes increasingly prominent. The conventional front-view vehicle lens has a large front port diameter, a small angle, and a small field of view. If the overall length is shortened, the back focus of the whole system will become smaller, resulting in larger CRA, which cannot perfectly match the chip, and is not conducive to actual installation

At present, vehicular optical lenses with more than one million pixels usually use 6 lenses. Although the resolution is significantly improved compared with 5 lenses, the increase in the number of lenses makes it more difficult to miniaturize the lens. For lenses that work in harsh environments and have limited installation space, on the basis of ensuring the stability in different working environments, further improving the direction of miniaturization and high resolution has become the mainstream trend of vehicle lens development

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