Optical design of athermalized infrared dual-band annular folded lens with multilayer imaging diffractive optical elements

doi:10.1016/j.optlaseng.2022.107370

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Optical design of athermalized infrared dual-band annular folded lens with multilayer imaging diffractive optical elements
	J. N. Wang; M. X. Piao; Y. M. Zhao and B. Zhang
刊名	Optics and Lasers in Engineering
	2023
卷号	161 页码:8
ISSN号	0143-8166
DOI	10.1016/j.optlaseng.2022.107370
英文摘要	In order to realize the miniaturization of the infrared dual-band imaging system, a common optical path annular folded lens (AFL) with multilayer imaging diffractive optical element (MIDOE) is designed in this paper. The design principle of the AFL is studied, and the relationship between the obscuration ratio and the field of view is given. For the wide temperature range, the theoretical model of the optimal substrate materials selection for the MIDOE is established to achieve the high diffraction efficiency. According to theory analysis, the infrared dual -band AFL with IRG26-ZNS MIDOE is designed in the mid-wave infrared (MWIR) 3 similar to 5 ism and long-wave infrared (LWIR) 8 similar to 12 ism. The focal length is 50 mm, the equivalent F number is 1, and the full field of view is 14 degrees The modulation transfer function (MTF) curves of each field of view are close to the diffraction limit when the spatial frequency is 20lps/mm, and the MTF values are greater than 0.61 and 0.28 in MWIR and LWIR, respectively. When the ambient temperature ranges from-40 degrees C to 80 degrees C, the high image quality is achieved in dual-band. In addition, the tolerance analysis is performed to verify machinability of the system. The research in this paper has important significance for the realization of a new generation of the low-cost, integrated dual-band imaging system.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/66944]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	J. N. Wang,M. X. Piao,Y. M. Zhao and B. Zhang. Optical design of athermalized infrared dual-band annular folded lens with multilayer imaging diffractive optical elements[J]. Optics and Lasers in Engineering,2023,161:8.
APA	J. N. Wang,M. X. Piao,&Y. M. Zhao and B. Zhang.(2023).Optical design of athermalized infrared dual-band annular folded lens with multilayer imaging diffractive optical elements.Optics and Lasers in Engineering,161,8.
MLA	J. N. Wang,et al."Optical design of athermalized infrared dual-band annular folded lens with multilayer imaging diffractive optical elements".Optics and Lasers in Engineering 161(2023):8.