Link image quality simulation analysis method based on full-band optical processing surface shape error system
A surface error and optical processing technology, which is applied in the direction of adopting optical devices, testing optical performance, design optimization/simulation, etc., to achieve the effects of improving imaging quality, shortening development cycle, and saving manufacturing costs
Active Publication Date: 2020-12-22
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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The analysis of the impact of full-band processing surface shape errors on parameters such as ellipticity and point spread function energy concentration in astronomy has not been reported yet.
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[0023] combine Figure 1 to Figure 11 Description of this embodiment, based on the full-band optical processing surface shape error system link image quality simulation analysis method, the method is implemented by the following steps:
[0024] Step 1. Complete the initial optical system design;
[0025] Complete the initial optical system design according to the use requirements, and assign parameters such as optics, mechanics, and electricity; then optimize the model of the optical system to make the parameters of the system meet the index requirements.
[0026] Step 2, establishing a simulation model of low-frequency error of the processed surface shape;
[0027] According to the previous processing surface shape data of optical components, the simulation of the processing surface shape is carried out. The low frequency part is obtained by fitting the first 37 Zernike polynomials.
[0028] Step 3, establishing a simulation model of high-frequency errors in the processed ...
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The invention relates to a link image quality simulation analysis method based on a full-band optical processing surface shape error system and relates to the technical field of photoelectric imaging.The method comprises the following steps of designing an optical system structure according to user index requirements, establishing an optical system link model, and processing surface shape data based on an actually measured optical element; establishing a mirror surface machining surface shape low-frequency error simulation model and a medium-high frequency error simulation model; fusing the low-frequency processing surface shape error simulation data and the medium-high frequency processing surface shape error simulation data, establishing a full-band optical element processing surface shape error simulation model, detecting the accuracy of the full-band optical element processing surface shape error simulation model, after the data accuracy test is completed, loading the processing surface shape error data into an optical link simulation system for image quality analysis. The method is advantaged in that a reasonable data sampling interval is set, an accurate machining surface shape error simulation model is established, and a foundation is laid for high-precision and fast-operation optical system link image quality simulation analysis.
Description
technical field [0001] The invention relates to the technical field of optical system integration simulation, in particular to a system link image quality simulation analysis method based on full-band optical processing surface shape error. Background technique [0002] Astronomy has been an important driving force behind the development of advanced technologies such as highly sensitive detectors, high-precision sensors and super-mobile computers. Observing the microcosm and space requires sophisticated optical equipment. The optical system link simulation method calculates the imaging quality of the optical system based on the physical mechanism of imaging, and is used to analyze and study the influence of various error factors on the optical image quality. Compared with experimental test analysis, accurate simulation can effectively shorten the equipment development cycle and save manufacturing costs. The processing surface error of optical components is one of the key f...
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Login to View More IPC IPC(8): G01B11/24G01M11/02G06F30/20
CPCG01B11/24G01M11/02G06F30/20
Inventor 班章杨勋李晓波姜禹希
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI