An optical lens for ultra-wide-angle high-definition aerial photography

Abstract

The invention discloses an optical lens for an ultra-wide-angle high-definition aerial photography instrument, which comprises a first lens group and a second lens group; the first lens group is composed of a first lens, a second lens and a third lens; the second lens group is composed of a first lens group Composed of four lenses, a fifth lens and a sixth lens; the first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged coaxially between the object plane and the image plane in sequence; The first lens and the second lens are meniscus lenses with negative refractive power and the convex surface faces the object plane; the third lens is a plano-convex lens with positive refractive power and the plane faces the image plane; the fourth lens and the fifth lens are positive light The focal power cemented lens, the rear surface of the fourth lens and the front surface of the fifth lens are bonded to each other; the sixth lens is a biconvex lens with positive refractive power. The present invention is only composed of six spherical glass lenses, but can achieve a maximum angle of 190 degrees for diagonal photography under the premise of ensuring image clarity.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical lens for an ultra-wide-angle high-definition aerial camera, belonging to the technical field of optical imaging. Background technique [0002] At present, under the general situation of digitalization, networking and intelligence of Internet of Things monitoring, the ultra-wide-angle high-definition lens can shoot the scene with high definition and ultra-large angle. As the core device in video photography, the ultra-wide-angle high-definition lens has the advantages of high resolution, small size, and ultra-wide-angle technology. of particular practical value. [0003] With the rapid development of the Internet of Things and smart home security products, the existing camera lens can only be applied to ordinary VGA pixels. For example, a camera lens with 6 pieces of glass has an average pixel of only 3 million, and the maximum angle of horizontal photography is 130 degrees, resulti...

AI Technical Summary

Problems solved by technology

Especially with the rapid popularization of rearview and driving recorders in the automotive field, the camera angles in the original car rearview and driving records are not clear enough, the camera monitoring range is too small, and there are many camera dead spots. Conducive to completely clear and effective record and restoration of the incident

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