@inproceedings{bacc698de19747bd80435f4ac41ffeb2,
title = "Optical design of off-axis freeform reflective zoom imaging system with large relative aperture",
abstract = "Off-axis reflective zoom imaging optical system has a wide range of applications in the field of photoelectric detection because of its advantages of chromatic aberration-free, broad-spectrum imaging. The existing off-axis reflective zoom imaging optical system has a fixed pupil diameter, and as the focal length becomes larger, the relative aperture becomes smaller, resulting in a lower signal-to-noise ratio and weaker detection capability. Additionally, aberration correction is vitally important in the off-axis reflective zoom system with large relative aperture. An attempt to improve the performance of an off-axis reflective zoom imaging system with large relative aperture using freeform surface is reported. The F number is 4, and the zoom ratio is 3. The optical design with freeform surfaces shows marked improvements compared with the design with higher order aspheric surfaces.",
keywords = "freeform, off-axis reflective optical system, zoom imaging",
author = "Jiajing Cao and Jun Chang and Junya Wang and Bingqing Xie and Dongmei Li",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Optical Design and Testing XIII 2023 ; Conference date: 14-10-2023 Through 15-10-2023",
year = "2023",
doi = "10.1117/12.2685883",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Yongtian Wang and Kidger, \{Tina E.\} and Rengmao Wu",
booktitle = "Optical Design and Testing XIII",
address = "United States",
}