Vehicle-mounted lens optical system

Abstract

The invention discloses a vehicle-mounted lens optical system. The vehicle-mounted lens optical system is successively provided with a first lens G01, a second lens P01, a third lens P02, a fourth lens P03 and a light filter P04 from an object side to an image side, wherein an aperture diaphragm L01 is arranged between the third lens P02 and the fourth lens P03, the first lens G01 has negative power, an object side surface S1 of the first lens G01 is a convex surface, an image side surface S2 of the first lens G01 is a concave surface, the second lens P01 has negative power, the second lens P01 is a biconcave lens, the third lens P02 has positive power, the third lens P02 is a biconvex lens, the fourth lens P03 has positive power, and the fourth lens P03 is a biconvex lens. The vehicle-mounted lens optical system has a relatively short lens total length and an ultra wide field.

Description

[0001] 【Technical field】 [0002] The invention relates to a vehicle lens optical system. [0003] 【Background technique】 [0004] In recent years, solid-state chips including, for example, charge-coupled devices (CCD) or complementary metal-oxide-semiconductor (CMOS) image sensors have been widely used in imaging devices, and with the increasing maturity of semiconductor manufacturing processes, the pixel size of chips The demand for compact, high-resolution optical systems gradually decreases. [0005] The use of wide-angle lenses in automobiles can help drivers confirm whether there are obstacles around the vehicle and know the relative orientation and distance of obstacles in time, further improving driving and parking safety. Generally, the monitoring angle of the vehicle lens is 60°~90°. When a larger monitoring angle is required, multiple wide-angle lenses need to be combined, which increases the cost; the optical system of the general vehicle lens needs to use five or ...

AI Technical Summary

Problems solved by technology

Generally, the monitoring angle of the vehicle lens is 60°~90°. When a larger monitoring angle is required, multiple wide-angle lenses need to be combined, which increases the cost; the optical system of the general vehicle lens needs to use five or more lenses. Satisfies the requirement of high resolution, but cannot meet the requirement of compactness and lightness; the optical system of general vehicle lens needs to use multiple glass lenses to ensure the necessary optical performance, which increases the manufacturing cost of the lens

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