A periscopic lens, a camera module and a terminal device with super-zoom hybrid

Abstract

The application discloses a periscopic lens for folding and superimposing, a camera module and a terminal device. The lens comprises a first lens, a second lens, a third lens and a prism arranged along an optical axis from an object plane to an image plane. The first lens is a spherical lens, the second lens is an aspherical lens, and the third lens is a superlens. The first lens has positive focal power, the object side surface is concave, and the image side surface is concave. The second lens has negative focal power, the object side surface is concave, and the image side surface is concave. The third lens has positive focal power, and the object side surface has a microstructure arrangement. The application adopts specific focal power matching and surface type design of three lenses and a prism, realizes efficient convergence of an optical path and balance of aberration while ensuring a long focal length, replaces multiple conventional lenses by using the phase control ability of the superlens, significantly reduces the number of lenses, and reduces the total length and weight of the lens. The application has the advantages of simple structure, small size and high image quality.

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