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Process and parameter selection of optical element surface processing and its application method

A technology of optical components and parameter selection, applied in special data processing applications, design optimization/simulation, etc., can solve problems such as suboptimal, and achieve the effect of improving accuracy, avoiding manual judgment, and avoiding uncertainty and impersonality.

Active Publication Date: 2021-11-26
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method works, but is not optimal

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  • Process and parameter selection of optical element surface processing and its application method
  • Process and parameter selection of optical element surface processing and its application method
  • Process and parameter selection of optical element surface processing and its application method

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Embodiment Construction

[0024] The following will take a Φ540mm SiC off-axis aspheric mirror as an example to further explain the process, parameter selection and application method of the surface shape processing of the optical element of the present invention.

[0025] Such as figure 1 As shown, the implementation steps of the process and parameter selection method of optical element surface processing in this embodiment include:

[0026] 1) Establishing a processing limited parameter library for the target optical element, the processing limited parameter library includes at least two or more groups of processes and parameters for surface processing of the target optical element;

[0027] 2) Calculate the modification efficiency FA of each group of processes and parameters;

[0028] 3) Select a group of processes and parameters with the largest modification efficiency FA value as the output optimal process and parameters.

[0029] In the present embodiment, in step 2), the functional expression ...

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Abstract

The invention discloses a process and parameter selection for surface shape processing of an optical element and an application method thereof. The implementation steps of the process and parameter selection method include: establishing a processing limited parameter library for the target optical element, and calculating the modification of each group of processes and parameters Efficiency FA, ​​select a group of processes and parameters with the largest modification efficiency FA value as the output optimal process and parameters. The implementation steps of the application method of the process and parameter selection method include determining the optimal process and parameters, and iteratively processing the surface shape of the target optical element according to the optimal process and parameters until the surface shape accuracy of the target optical element meets the specified conditions. The present invention can avoid manual judgment errors, realize the formulation of process routes for high-efficiency and high-precision processing of optical elements, and objectively and comprehensively evaluate the processes and parameters that are most suitable for the current surface shape through the optimal parameter selection criteria, avoiding the inconvenience caused by personnel selecting processes Determine and not be objective, effectively improve the accuracy of process selection.

Description

technical field [0001] The invention relates to the polishing technology of optical parts, in particular to a process and parameter selection of surface shape processing of optical elements and an application method thereof. Background technique [0002] According to the diffraction theory of optics, increasing the aperture of the optical system is an effective means to improve the resolution of the system. With the development of optical technology, the optical components used in the new generation of optical systems have higher and higher requirements for surface accuracy, which puts forward higher requirements for optical processing technology. The processing of high-precision optical components is a complicated and lengthy process, and its technological process includes: milling and forming, CNC grinding, rough polishing, fine polishing, etc. The processing of high-precision optical components cannot be completed by relying on a single process or polishing tool. How to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20B24B1/00
CPCB24B1/00G06F30/20
Inventor 宋辞戴一帆彭小强杜航石峰胡皓
Owner NAT UNIV OF DEFENSE TECH