Optical imaging system based on anaberration of wavefront coding technology

Abstract

The invention relates to an optical imaging system based on anaberration of wavefront coding technology. The optical imaging system comprises a front transmission type optical system (1), a rear transmission type optical system (2), a wavefront coding element (3), a focal plane system (4) and an image recovery system (5), wherein the wavefront coding element (3) is arranged at a diaphragm position of the front transmission type optical system (1) and the rear transmission type optical system (2), the focal plane system (4) is arranged at the focal plane of the front transmission type optical system (1) and the rear transmission type optical system (2), and the wavefront coding element (3) includes a circular lens. The optical imaging system of the invention overcomes disadvantages of the anaberration methods of present optical systems, and the wavefront coding element and the image recovery algorithm are used to effectively eliminate the aberration, field curvature and distortion of the visual field, simplify the structure of the optical imaging system, and reduce the size of the optical imaging system.

Description

technical field [0001] The invention relates to the technical field of optical imaging and an optical detection system, in particular to an optical imaging system based on wavefront encoding technology for eliminating aberrations. Background technique [0002] For the imaging system, in order to make the optical system have the characteristics of low aberration and high image quality to meet the requirements of use, in addition to the lens group used for imaging, it is necessary to add multiple groups of lenses to correct various aberrations in the optical system. The conventional method of adding lens groups to eliminate aberrations, on the one hand, increases the weight of the optical system, the complexity of the structure and the difficulty of processing and adjustment, and reduces the stability of the optical system. On the other hand, due to the performance, configuration, and Restricted by the use environment and other requirements, the method of adding lens groups to...

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Problems solved by technology

The conventional method of adding lens groups to eliminate aberrations, on the one hand, increases the weight of the optical system, the complexity of the structure and the difficulty of processing and adjustment, and reduces the stability of the optical system. On the other hand, due to the performance, configuration, and Restricted by the use environment and other requirements, the method of adding lens groups to correct aberrations is not applicable to all optical system forms, and has its limitations in application

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