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has been cited by the following article:

• TITLE: Analysis and Prediction of Effect of Turning Marks Diffraction on Image Quality of Optical System

  AUTHORS: Haokun Ye, Jianping Zhang, Shuanglong Tan, Shangnan Zhao, Mingxin Liu, Xin Zhang

  KEYWORDS: Single-Point Diamond Turning, Diffraction, MTF, Blaze Grating

  JOURNAL NAME: Optics and Photonics Journal, Vol.13 No.6, June 30, 2023

  ABSTRACT: Single-point diamond turning (SPDT) is widely used in the machining of infrared materials and metal-based mirrors. Diamond tips can scratch material, replicate the shape of the tip, and create annular turning marks on optical surfaces, which can have unpredictable adverse effects on imaging. In order to predict the effect of turning marks diffraction on the degradation of imaging quality, a model of the influence of SPDT processing parameters on the reduction of system imaging MTF under the influence of ideal grating turning marks diffraction was established. The results show that the depth of the turning mark will lead to the decline of MTF, especially the low frequency information. Finally, a method is proposed to reduce the effect of turning marks diffraction through changing the processing parameters.