Research, calculation, and simulation to investigate the influence of machine setting errors on the performance of thermal imaging systems
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https://doi.org/10.54939/1859-1043.j.mst.94.2024.122-129Keywords:
Thermal imager; Single point diamond turning; Machine setting error; Imaging quality.Abstract
This article studies the effects of Single Point Diamond Turning (SPDT) setting errors on machined surface errors and offers solutions to evaluate the effects of these errors on the optical system by simulating aspherical/diffraction surfaces after machining and the entire optical system in Zemax optical design software. The results show that the main types of errors, such as off-axis and tool tilt, will reduce the MTF function and change the focal length of the optical system, especially off-axis errors.
References
[1]. H. Wang, S. To, C. Y. Chan, C. F. Cheung, and W. B. Lee, “A theoretical and experimental investigation of the tool-tip vibration and its influence upon surface generation in single-point diamond turning,” Int J Mach Tools Manuf, vol. 50, no. 3, pp. 241–252, (2010), doi: 10.1016/j.ijmachtools.2009.12.003. DOI: https://doi.org/10.1016/j.ijmachtools.2009.12.003
[2]. C.-C. Chen, Y.-C. Cheng, W.-Y. Hsu, H.-Y. Chou, P.-J. Wang, and D. P. Tsai, “Slow tool servo diamond turning of optical freeform surface for astigmatic contact lens,” Optical Manufacturing and Testing IX, vol. 8126, p. 812617, (2011), doi: 10.1117/12.892447. DOI: https://doi.org/10.1117/12.892447
[3]. R. C. Juergens, R. H. Shepard III, and J. P. Schaefer, “Simulation of single-point diamond turning fabrication process errors,” Novel Optical Systems Design and Optimization VI, vol. 5174, p. 93, (2003), doi: 10.1117/12.511341. DOI: https://doi.org/10.1117/12.511341
[4]. H. A. Tú, N. Q. Hiệp, N. V. Thư, and N. V. Linh, “Nghiên cứu, thiết kế hệ thống quang học ảnh nhiệt hai trường nhìn ứng dụng trong khí tài quan sát hỗn hợp ngày đêm,” Tạp chí Nghiên cứu Khoa học và Công nghệ quân sự, vol. 9, pp. 117–123, (2023). DOI: https://doi.org/10.54939/1859-1043.j.mst.89.2023.117-123
[5]. H. Dewei, W. Min, and W. Fen, “Research on testing system for optical surface based on polarizing coherent technology,” (2016).
[6]. S. Hatefi and K. Abou-El-Hossein, “Review of single-point diamond turning process in terms of ultra-precision optical surface roughness,” International Journal of Advanced Manufacturing Technology, vol. 106, no. 5–6, pp. 2167–2187, (2020), doi: 10.1007/s00170-019-04700-3. DOI: https://doi.org/10.1007/s00170-019-04700-3
[7]. R. Bittner, “Tolerancing of single point diamond turned diffractive optical elements and optical surfaces,” Journal of the European Optical Society, vol. 2, pp. 1–8, (2007), doi: 10.2971/jeos.2007.07028. DOI: https://doi.org/10.2971/jeos.2007.07028
[8]. O. D. Program and U. Manual, “Zemax ® 13 Optical Design Program User’s Manual,” (2014).
[9]. O. Optronics, “One-stop-shop for all your IR optical needs.” [Online]. Available: www.ophiropt.com/infrared
