Double-sided aspheric lens and design method thereof

Abstract

The invention relates to a double-sided aspheric lens. The double-sided aspheric lens comprises a front surface and a rear surface, wherein curved surfaces of the front surface and the rear surface are aspheric refracting surfaces, and the aspheric refracting surfaces are determined by the following conic curve functions. According to the lens designed according to the method, thickness of the lens and the image quality condition of a main eye using area are considered at the same time, and the key aberration of the whole lens can be directly calculated by adjusting main parameters of the surface shape of the front surface of the lens, so an optimal design result can be obtained according to specific requirements of customers.

Description

technical field [0001] The invention relates to a double-sided aspheric lens and a design method thereof. Background technique [0002] At present, optical devices, such as optical reading heads, camera lenses, and spectacle lenses, generally have two types of lenses: spherical lenses and aspheric lenses. As for the spherical lens, since its two refraction surfaces are spherical, it is relatively easy to manufacture and process. However, for lenses, in addition to considering the ease of lens manufacturing and processing and the thinning of lenses, the imaging quality of lenses must also be considered. In the past, in order to pursue the thinness of the lens, it was necessary to change the curved surface of the lens. The use of a spherical design increases the aberration and deformation, resulting in obvious adverse phenomena such as blurred images, distorted field of view, and narrow field of view. [0003] In order to solve this problem, currently more lenses are designe...

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Problems solved by technology

[0004] Although there is no lack of special design methods for the design of aspheric lenses for glasses, these design methods are relatively complicated and require certain design experience. Therefore, it is necessary to design a set of effective design methods. Design method of aspheric lens capable of realizing good imaging effect

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