optical lens

Abstract

The present application discloses an optical lens, and the optical lens sequentially includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens along an optical axis from the object side to the image side. The first lens has negative refractive power, and its object side and image side are concave; the second lens has positive refractive power, its object side is convex, and the image side is concave; the third lens has positive refractive power, its object side and The image sides are all convex; the fourth lens and the fifth lens are cemented to form a cemented lens; and the sixth lens has positive refractive power.

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] In recent years, vehicle-mounted lenses have been widely used in vehicle-mounted assisted driving systems to assist drivers in driving, and even for automatic driving. Vehicle-mounted lenses have become an indispensable device for ensuring vehicle driving safety. As the use of lenses in the market increases year by year, the number of companies entering the industry is also increasing, and the competition in the industry is intensifying. It is particularly important to reduce the cost of lenses to enhance competitiveness. [0003] Often, using plastic lenses is a straightforward way to reduce costs. However, due to the special application environment of the vehicle-mounted lens, it is required that the lens can maintain a better resolution in hot, high-temperature days, cold, ...

AI Technical Summary

Problems solved by technology

[0004] However, due to the poor thermal stability of optical plastics, the high and low temperature imaging performance of lenses containing plastic lenses is not good, which limits the cost and weight of vehicle front-view lenses and autopilot lenses

Images