Translator Disclaimer
Paper
5 November 2015 Design of off-axis four-mirror optical system without obscuration based on free-form surface
Author Affiliations +
Proceedings Volume 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015; 97952D (2015) https://doi.org/10.1117/12.2217516
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held June-July 2015, 2015, Hefei, Suzhou, and Harbin, China
Abstract
With the development of modern military technology, the requirements of airborne electro-optical search and tracking system are increasing on target detection and recognition. However, traditional off-axis three-mirror system couldn’t meet the requirements for reducing weight and compacting size in some circumstances. Based on Seidel aberration theory, by restricting the aberration functions, the optical system could achieve initial construction parameters. During the designing process, decenters and tilts of mirrors were adjusted continuously to eliminate the obscurations. To balance off-axis aberration and increase angle of view, the free-form mirror was introduced into the optical system. Then an unobstructed optical system with effective focal length of 100 mm, FOV of 16°×16°, and relative aperture as F/7 is designed. The results show that the system structure is compact, with imaging qualities approaching diffraction limit.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chenxu Huang and Xin Liu "Design of off-axis four-mirror optical system without obscuration based on free-form surface", Proc. SPIE 9795, Selected Papers of the Photoelectronic Technology Committee Conferences held June–July 2015, 97952D (5 November 2015); https://doi.org/10.1117/12.2217516
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Design of space borne imager with wide field of view...
Proceedings of SPIE (October 24 2016)
Highly compact optical design of an off axis three mirror...
Proceedings of SPIE (January 11 2019)
Optical design of off axis three mirror system with long...
Proceedings of SPIE (January 11 2019)
Design of compact freeform off-axis TMA system
Proceedings of SPIE (November 07 2018)
Optical design of reflective wide-field cameras
Proceedings of SPIE (August 29 2008)

Back to Top