Optics and Precision Engineering, Volume. 32, Issue 18, 2744(2024)
Design of NIR-II imaging system with wide spectrum
Figures & Tables(12)
Fig. 2. Initial configuration with real lens （a） &Transverse ray fan plot （b）
Fig. 3. Initial configuration with cemented doublet （a） &Transverse ray fan plot （b）
Table 1. Specifications of optical system
View tableView in ArticleTable 1. Specifications of optical system
Index Parameters Working spectrum/μm 0.9~2.3 Resolution 640×512 Detector pixels/μm 15 F number 2 Focal length/mm 40 Focus range/mm 100~+∞ BFL/mm >50
Table 2. Tolerance distribution parameters for optical systems
View tableView in ArticleTable 2. Tolerance distribution parameters for optical systems
Torlerances Limits Radius（Fringes） 3 Thickness/mm 0.02 Surface decenter X，Y/mm 0.01 Surface tilt X，Y/（°） 0.01 Surface irregularity 0.3 Element decenter X，Y/mm 0.02 Element tilt X，Y/（°） 0.1
Table 3. Result of Monte Carlo tolerance analysis
View tableView in ArticleTable 3. Result of Monte Carlo tolerance analysis
概率 MTF值 98% 0.299 380 71 90% 0.360 931 96 80% 0.401 494 56 50% 0.480 058 43 20% 0.553 043 06 10% 0.586 725 46 2% 0.632 721 63
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Yang JIANG, Dongxu ZHAO, Xiyao SONG, Yiqi GU, Yan XING, Bo ZHENG. Design of NIR-II imaging system with wide spectrum[J]. Optics and Precision Engineering, 2024, 32(18): 2744
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Received: Apr. 28, 2024
Accepted: --
Published Online: Nov. 18, 2024
The Author Email: JIANG Yang (le_zhi@yeah.net)
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