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- Title
Analysis and Prediction of Image Quality Degradation Caused by Diffraction of Infrared Optical System Turning Marks.
- Authors
Ye, Haokun; Zhang, Jianping; Zhao, Shangnan; Liu, Mingxin; Zhang, Xin
- Abstract
This paper addresses the issue of reduced image quality due to annular turning marks formed by single-point diamond turning (SPDT) during the processing of metal-based mirrors and infrared lenses. An ideal single-point diamond turning marks diffraction action model to quantitatively analyze the impact of turning marks diffraction on imaging quality degradation is proposed. Based on this model, a fast estimation algorithm for the optical modulation transfer function of the system under turning marks diffraction (TMTF) is proposed. The results show that the TMTF algorithm achieves high computational accuracy, with a relative error of only 3% in diffraction efficiency, while being hundreds of times faster than rigorous coupled wave analysis (RCWA). This method is significant for reducing manufacturing costs and improving production efficiency, as it avoids the problem of being unable to compute large-size optical systems due to computational resource and time constraints.
- Subjects
IMAGE quality analysis; OPTICAL transfer function; OPTICAL diffraction; DIAMOND turning; TRANSFER functions; INFRARED imaging
- Publication
Photonics, 2023, Vol 10, Issue 8, p937
- ISSN
2304-6732
- Publication type
Article
- DOI
10.3390/photonics10080937