Low-cost high-resolution active and passive single-pixel imaging optical-mechanical system

Abstract

A low-cost high-resolution active and passive single-pixel imaging optical-mechanical system comprises an imaging lens, a rotary table, a transmitting part, a receiving part and a data processing system. The imaging lens is a commercial astronomical telephoto lens; according to the emitting part, a laser device and an emitting light path are stably fixed to the front end of an imaging lens in the mode that a fixing ring and a fixing frame are matched, a laser beam passes through two 45-degree reflectors on the emitting light path, then is coaxial with the imaging lens and is emitted to a target, illumination is provided by laser during active imaging, illumination is provided by ambient light during passive imaging, and the imaging efficiency is improved. And closing the laser. And the receiving part is quickly mounted at the rear end of the imaging lens through threads on the interface nut. The problems that a customized high-resolution optical system is high in development cost, long in period and complex in system structure in single-pixel imaging, and the period and cost are additionally increased in functional development of pointing, focusing and the like are solved, a single-pixel imaging optical-mechanical system is assembled on a commercial large-aperture astronomical telescope, and the active-passive integrated imaging function is achieved.

Description

technical field [0001] The invention relates to a low-cost high-resolution active-passive single-pixel imaging optical-mechanical system, which belongs to the field of measurement. Background technique [0002] Single-pixel imaging (associated imaging) is a new imaging method that can solve some problems that cannot be solved by traditional imaging techniques. It does not directly image the target object, but uses a light field with associated characteristics to illuminate the target and perform associated measurements. To achieve imaging, it can realize super-resolution imaging, strong anti-interference ability, simple structure, and theoretically can be realized in any wave band. In order to perform single-pixel imaging of targets tens or even hundreds of kilometers away, high-resolution imaging lenses are required. Most of the currently commonly used solutions use high-resolution custom imaging lenses, which are expensive and have a single function. , and the current com...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems of high development cost and long period of development of custom-made high-resolution optical systems for single-pixel imaging, complex system structure, additional cycle and cost for the development of pointing, focusing and other functions, and the existing laser radar three-dimensional The imaging system needs to scan components, and the system is complex and the cost is high. A single-pixel imaging optical-mechanical system is assembled on a commercial large-aperture astronomical telescope to realize the integrated imaging function of the main object. The system has low cost, simple structure and multiple functions.

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