Design of optical system for all-weather and panoramic surveillance camera

Table 1. Technical indices of optical system
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Table 1. Technical indices of optical system
参数技术指标
工作波段/nm 可见光、近红外（840～860）
视场角/（°） 360×（40～100）
像元尺寸/μm ≤4
焦距/mm −2.75
F数 3.28
MTF（125 lp/mm） >0.4
相对照度 >0.9
畸变/% <2

Table 2. Parameters of lens configuration

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Table 2. Parameters of lens configuration

表面	曲率半径/mm	厚度/mm	材料
1	38.195	23.780	H-K9L
2*	−15.661	−22.829	MIRROR
3	−37.555	22.829	MIRROR
STO*	−15.661	1.998	AIR
5	−5.137	1.507	SF14
6	−5.727	0.647	AIR
7	−20.263	1.594	N-BAK2
8	−5.994	1.582	LAF9
9	−12.616	0.599	AIR
10	13.033	1.838	ZF51
11	10.601	1.604	H-ZK50
12	100.438	9.902	AIR
13	13.954	1.199	ZF51
14	7.247	2.639	BASF12
15	−26.687	1.101	AIR
16	−11.640	1.070	N-KZFS8
17	−113.701	9	AIR

Table 3. Aspheric surface parameters
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Table 3. Aspheric surface parameters
表面曲率半径/mm 圆锥系数四阶项六阶项八阶项
2、4 −15.661 0.159 895 5.706 90×10⁻⁶ 4.400 18×10⁻⁸ 1.038 33×10⁻¹⁰

Table 4. Tolerance analysis items and value ranges
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Table 4. Tolerance analysis items and value ranges
公差项目取值范围
曲率半径 <2
中心厚度/mm ±0.04
表面偏心/mm ±0.013
表面倾斜/（°） ±0.017
材料折射率 ±0.001
阿贝数/% ±0.3

Table 5. Monte Carlo analysis results
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Table 5. Monte Carlo analysis results
成像区域/% MTF（@125 lp/mm）
90 >0.323 0
80 >0.330 1
50 >0.379 1
20 >0.441 7
10 >0.484 8

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Xiaomeng WANG, Yu CHEN, Chunyan WANG, Yiwu ZHAO, Hao SUN, Huan LIU, Tong ZHANG. Design of optical system for all-weather and panoramic surveillance camera[J]. Journal of Applied Optics, 2023, 44(3): 484

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