Five-lens imaging lens group

Abstract

The invention relates to a five-lens imaging lens group. The five-lens imaging lens group sequentially comprises a lens 1, a lens 2, a diaphragm, a lens 3, a lens 4, a lens 5, a glass filter and an imaging surface from an object side to an image side, wherein the lens 1, the lens 2, the lens 3, the lens 4 and the lens 5 are glass lenses; the lens 1 is a lens with negative refractive power; the lens 2 is a lens with positive refractive power; the lens 3 is a concavo-convex lens of which a concave surface faces the object side and a convex surface faces the image side; the lens 4 is a biconvex lens; the lens 5 is a concavo-convex lens of which a concave surface faces the object side and a convex surface faces the image side. An optical system adopts full-glass lens elements to enhance the stability in high-temperature and low-temperature environments; the five-lens imaging lens group is a large-aperture system, so that the imaging capability in the low-light environment can be improved; by adopting a five-lens structure, so that the five-lens imaging lens group is simple in structure, and can effectively reduce the cost and shorten the optical total length.

Description

Technical field [0001] The invention involves the field of optical devices, and specially involves a 4 -megapixel five -pixel imaging lens group for cars. Background technique [0002] Optical lens is an indispensable component in the visual system of the machine, which directly affects the quality of imaging quality, and affects the implementation and effect of algorithms.The optical lens can be divided into short -focus lens, mid -focus lens, and telephoto lens from the focal length. From the size of the field of view, there are wide -angle, standards, and remote shots;Automatic aperture fixed focus lens, manual zoom lens, automatic zoom lens, automatic aperture electric zoom lens, electric triple variable lens, etc. [0003] At present, with the rapid development of my country's economy, the number of private cars has surged, and buying cars and driving licenses has become a common phenomenon. Novice has led to the existence of many potential crisis; The victim drivers are mis...

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.

Images