A processing device for processing an off-axis multi-reflection imaging system

Abstract

The invention discloses a processing device for processing an off-axis multi-reflection imaging system, a machine tool base, a worktable is installed on the machine tool base, and a tool for clamping an off-axis multi-reflection imaging system is installed on the workbench. A special fixture, a moving frame is installed on the base of the machine tool, a lifting frame is installed in the moving frame, a lifting plate is installed in the lifting frame, and a rotating shaft is arranged on the lifting plate, and the bottom of the rotating shaft passes through the U The type plate is connected with a small ultrasonic motor spindle and a swing motor, and the small ultrasonic motor spindle can perform X, Y, Z three-axis movements and can also rotate and swing. When processing complex surfaces, the small ultrasonic electric spindle capable of free movement can process complex curved surfaces with high processing accuracy.

Description

technical field [0001] The invention relates to a machining device for an optical element, in particular to a machining device for machining an off-axis multi-reflection imaging system. Background technique [0002] At present, with the vigorous development of science and technology in various fields such as industry and agriculture, national defense, and aerospace, and the upgrading of industries, the application of space optical systems in agriculture and forestry, ocean monitoring, topographic mapping, military reconnaissance, resource census, and disaster prevention and rescue The application has been significantly improved. The space optical system mainly uses optical elements to image the target through multiple reflections or refractions. In various optical structures, because the reflective optical system has the characteristics of no chromatic aberration, easy optical path folding, and easy light weight, etc., in It has been widely used in space optical system. Thi...

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Problems solved by technology

[0004] However, the off-axis multi-mirror system has the disadvantages of high lens processing precision and difficulty in assembly and debugging, and has not been widely used.

[0005] Patent CN108466107A provides a processing device for off-axis three-mirror imaging system, which adopts an integrated processing method to realize the processing of off-axis three-mirror system, but the mirrors must be distributed on the same circumference, which is subject to great constraints and cannot be freely Suitable for complex off-axis optical system processing

[0006] Patent CN110126101A provides a processing device for off-axis multi-reflection imaging system. The center position and radius of gyration of the optical system must be determined during processing. The processing efficiency is not high and the constraints are relatively large, so it cannot be freely applied to more complex Off-axis optical system processing

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