基于单传感器的三波段共口径光学系统设计
doi: 10.37188/CO.2023-0098
Design of three-band co-aperture optical system based on single sensor
-
摘要:
针对现有多波段成像系统体积大、功耗高和集成化设计困难的问题，本文提出了一种基于单传感器的三波段共口径成像光学系统的设计方法。首先，在光学系统的光阑处设计1×2多波段透镜阵列，把可见光波段和短波红外波段同时成像在一个像平面上，并把两个波段中心波长的成像位置偏差控制在一个像元内以实现双波段融合成像。然后，针对双波段成像衍射极限不同的问题，提出分通道透镜阵列的离轴偏移量和通光口径大小联合优化方法，并采用双电动光阑高速控制三个成像通道的切换速度。最后，设计了一个基于单传感器的焦距为30 mm，工作波段分别为480~900 nm、900~1700 nm和480~1700 nm的三波段共口径光学系统。设计及分析结果表明该系统具有成像质量好、结构紧凑、无运动光学元件、成像波段切换速度快等优点。
-
关键词:
- 单传感器 /
- 透镜阵列 /
- 多波段成像系统 /
- 光学设计
Abstract:The existing multi-band imaging system has the problems of large volume, high power consumption, and difficulty in integrating design. To address these challenges, we proposed a three-band co-aperture imaging optical system based on single sensor. First, a 1×2 multi-band lens array in the aperture stop of the optical system is designed. This array effectively captures both the visible and short-wave infrared bands simultaneously in a single image plane. In addition, the imaging position deviation of the center wavelength of both bands are controlled within one pixel, resulting in dual-band fusion imaging. To address the issue of different diffraction limits in multi-band imaging, we propose to use the joint optimization method to simultaneously control the off-axis offset and aperture size of the split channel lens array. On the above basis, we suggest utilizing a dual electric diaphragm to control the switching speed of the three imaging channels. Finally, a three-band co-aperture optical system based on single sensor with a focal length of 30 mm and operating bands ranging from 480 to 900 nm, from 900 to 1700 nm, and from 480 to 1700 nm is designed. The system exhibits multiple advantages, such as excellent imaging quality, a compact structure, no moving optical elements, and a rapid switching speed of the imaging band, as indicated by the design and analysis results.
-
Key words:
- single sensor /
- lens array /
- multi-band imaging system /
- optical design
-
图 1 基于单传感器的三波段共口径光学系统的成像原理图
Figure 1. Imaging principle diagram of a three-band co-aperture optical system based on single sensor
下载:
全尺寸图片
幻灯片
图 2 三波段共口径光学系统设计流程图
Figure 2. Design flow chart of a three-band co-aperture optical system
下载:
全尺寸图片
幻灯片
图 3 三波段共口径成像光学系统
Figure 3. Three-band co-aperture optical system
下载:
全尺寸图片
幻灯片
图 4 调制传递函数曲线图
Figure 4. Modulation transfer function curves
下载:
全尺寸图片
幻灯片
图 5 光学系统的点列图
Figure 5. Spot diagram of the optical system
下载:
全尺寸图片
幻灯片
图 6 畸变曲线图
Figure 6. Diagram of distortion curves
下载:
全尺寸图片
幻灯片
图 7 1 300 nm与660 nm的成像位置偏差图
Figure 7. Deviation of imaging position at 1300 nm and 660 nm
下载:
全尺寸图片
幻灯片
图 8 蒙特卡洛分析概率图
Figure 8. Probability graph of Monte Carlo analysis
下载:
全尺寸图片
幻灯片
表 1 三波段光学系统的设计指标要求
Table 1. Design specifications of the three-band optical system
参 数 数 值 焦距/mm 30 工作谱段1/nm 480~900 工作谱段2/nm 900~1700 工作谱段3/nm 480~1700 F数 (480~900 nm) 5.0 F数 (900~1700 nm) 3.0 视场2ω/(°) 16 畸变/% ≤0.8 MTF（@100 lp/mm） ≥0.20
下载: 导出CSV
表 2 光学系统公差分配表
Table 2. Tolerance distribution of optical system
公差项 数值 光圈/fringe ≤2 元件厚度/mm ±0.02 表面偏心/mm ±0.01 元件倾斜/(°) ±0.01 元件偏心/mm ±0.01 表面不规则度/fringe ≤0.2 折射率 ±0.001 阿贝数/% ±0.3
下载: 导出CSV
表 3 光学系统的敏感公差
Table 3. Sensitivity tolerances of optical system
480~900 nm 900~1 700 nm 敏感公差项 MTF变化 敏感公差项 MTF变化 透镜6阿贝数 −0.043 透镜6折射率 −0.047 透镜5折射率 −0.043 透镜5折射率 −0.046 透镜6折射率 −0.035 透镜2偏心 −0.046 透镜1与2间隔 −0.031 透镜1与2间隔 −0.046 透镜9与10间隔 −0.030 透镜1偏心 −0.039 透镜1厚度 −0.027 透镜1厚度 −0.038 透镜2阿贝数 −0.026 透镜2表面偏心 −0.037
下载: 导出CSV
深圳坪山网站建设公司公司高端网站优化在线推广容桂网站优化推荐余杭区网站排名优化网站数据库优化宁波外包网站优化广东网站关键词优化德州网站优化公司联系方式网站优化要注意哪些地方电商网站url优化教育类如何优化网站安龙县网站优化营销网站标题优化技巧与方法虹口区网站优化机构宜昌网站优化精准获客网站地图可以优化吗河南什么是网站优化检修梅州网站优化案例对网站结构进行优化网站的性能优化搜索引擎优化和网站区别杭州优化网站怎么样宁波海曙区网站优化找哪家网站怎么优化丈云速捷优选小吃网站优化西藏网站优化加盟丽江网站优化服务汕尾网站建设与优化静安区公司官方网站优化方案定制五里店网站推广优化网站资源优化香港通过《维护国家安全条例》两大学生合买彩票中奖一人不认账让美丽中国“从细节出发”19岁小伙救下5人后溺亡 多方发声卫健委通报少年有偿捐血浆16次猝死汪小菲曝离婚始末何赛飞追着代拍打雅江山火三名扑火人员牺牲系谣言男子被猫抓伤后确诊“猫抓病”周杰伦一审败诉网易中国拥有亿元资产的家庭达13.3万户315晚会后胖东来又人满为患了高校汽车撞人致3死16伤 司机系学生张家界的山上“长”满了韩国人？张立群任西安交通大学校长手机成瘾是影响睡眠质量重要因素网友洛杉矶偶遇贾玲“重生之我在北大当嫡校长”单亲妈妈陷入热恋 14岁儿子报警倪萍分享减重40斤方法杨倩无缘巴黎奥运考生莫言也上北大硕士复试名单了许家印被限制高消费奥巴马现身唐宁街 黑色着装引猜测专访95后高颜值猪保姆男孩8年未见母亲被告知被遗忘七年后宇文玥被薅头发捞上岸郑州一火锅店爆改成麻辣烫店西双版纳热带植物园回应蜉蝣大爆发沉迷短剧的人就像掉进了杀猪盘当地回应沈阳致3死车祸车主疑毒驾开除党籍5年后 原水城县长再被查凯特王妃现身！外出购物视频曝光初中生遭15人围殴自卫刺伤3人判无罪事业单位女子向同事水杯投不明物质男子被流浪猫绊倒 投喂者赔24万外国人感慨凌晨的中国很安全路边卖淀粉肠阿姨主动出示声明书胖东来员工每周单休无小长假王树国卸任西安交大校长 师生送别小米汽车超级工厂正式揭幕黑马情侣提车了妈妈回应孩子在校撞护栏坠楼校方回应护栏损坏小学生课间坠楼房客欠租失踪 房东直发愁专家建议不必谈骨泥色变老人退休金被冒领16年 金额超20万西藏招商引资投资者子女可当地高考特朗普无法缴纳4.54亿美元罚金浙江一高校内汽车冲撞行人 多人受伤
-
[1] 李西杰, 刘钧, 陈阳. 双波段大变倍比连续共变焦光学系统设计[J]. 光子学报,2016,45(10):1022003. doi: 10.3788/gzxb20164510.1022003LI X J, LIU J, CHEN Y. Design of dual-band, high zoom ratio and continuous co-focal optical system[J]. Acta Photonica Sinica, 2016, 45(10): 1022003. (in Chinese). doi: 10.3788/gzxb20164510.1022003 [2] 刘凯, 陈荣利, 常凌颖, 等. 共口径双通道红外扫描成像光学系统[J]. 应用光学,2012,33(2):395-401.LIU K, CHEN R L, CHANG L Y, et al. Common-aperture dual-channel infrared scanning imaging optical system[J]. Journal of Applied Optics, 2012, 33(2): 395-401. (in Chinese). [3] 吴洪波, 张新, 王灵杰, 等. 单光子激光与中波红外共口径探测光学系统[J]. 光学 精密工程,2021,29(6):1260-1269. doi: 10.37188/OPE.20212906.1260WU H B, ZHANG X, WANG L J, et al. Common aperture optical system of single photon laser and medium wave infrared[J]. Optics and Precision Engineering, 2021, 29(6): 1260-1269. (in Chinese). doi: 10.37188/OPE.20212906.1260 [4] 郭钰琳, 于洵, 蔡珂珺, 等. 可见光/中波红外双波段共口径光学系统设计[J]. 红外技术,2018,40(2):125-132.GUO Y L, YU X, CAI K J, et al. Optical design of TV/IR dual-band common-aperture system[J]. Infrared Technology, 2018, 40(2): 125-132. (in Chinese). [5] 虞红, 费锦东, 张盈, 等. 共口径多波段复合场景仿真技术[J]. 红外与激光工程,2011,40(9):1629-1633.YU H, FEI J D, ZHANG Y, et al. Common aperture combination simulation technology for multi-spectral scene[J]. Infrared and Laser Engineering, 2011, 40(9): 1629-1633. (in Chinese). [6] SMEESTERS L, BELAY G Y, OTTEVAERE H, et al. Two-channel multiresolution refocusing imaging system using a tunable liquid lens[J]. Applied Optics, 2014, 53(18): 4002-4010. doi: 10.1364/AO.53.004002 [7] 程志峰, 刘福贺, 荀显超. 双波段共口径成像系统光机设计与分析[J]. 红外与激光工程,2015,44(11):3366-3372.CHENG ZH F, LIU F H, XUN X CH. Opto-mechanical design and analysis of dual-band sharing aperture imaging system[J]. Infrared and Laser Engineering, 2015, 44(11): 3366-3372. (in Chinese). [8] 岳宝毅, 刘钧, 郭佳, 等. 折/衍共口径红外双波段位标指示器光学系统设计[J]. 红外与激光工程,2019,48(4):418003. doi: 10.3788/IRLA201948.0418003YUE B Y, LIU J, GUO J, et al. Optical system design of folded/diffractive co-aperture infrared dual-band beam positioner[J]. Infrared and Laser Engineering, 2019, 48(4): 418003. (in Chinese). doi: 10.3788/IRLA201948.0418003 [9] 陈晓阳, 高明. 机载双波段共口径光电瞄准光学系统设计[J]. 红外与激光工程,2021,50(5):20200322. doi: 10.3788/IRLA20200322CHEN X Y, GAO M. Design of airborne dual-band common aperture photoelectric aiming optical system[J]. Infrared and Laser Engineering, 2021, 50(5): 20200322. (in Chinese). doi: 10.3788/IRLA20200322 [10] PARK K W, HAN J Y, BAE J, et al. Novel compact dual-band LOROP camera with telecentricity[J]. Optics Express, 2012, 20(10): 10921-10932. doi: 10.1364/OE.20.010921 [11] LI R CH, FENG L J, XU K J, et al. Optical design of an integrated imaging system of optical camera and synthetic aperture radar[J]. Optics Express, 2021, 29(22): 36796-36812. doi: 10.1364/OE.438979 [12] 马占鹏, 薛要克, 沈阳, 等. 可见/红外双色共孔径光学系统设计及实现[J]. 光子学报,2021,50(5):24-32. doi: 10.3788/gzxb20215005.0511002MA ZH P, XUE Y K, SHEN Y, et al. Design and realization of visible/LWIR dual-color common aperture optical system[J]. Acta Photonica Sinica, 2021, 50(5): 24-32. (in Chinese). doi: 10.3788/gzxb20215005.0511002 [13] ZHANG K, QU ZH, ZHONG X, et al. Design of binocular stereo vision optical system based on a single lens and a single sensor[J]. Applied Optics, 2022, 61(23): 6690-6696. doi: 10.1364/AO.461564 [14] 韩培仙, 任戈, 刘永, 等. 可见/中波双波段共口径光学系统设计[J]. 应用光学,2020,41(3):435-440. doi: 10.5768/JAO202041.0301001HAN P X, REN G, LIU Y, et al. Optical design of VIS/MWIR dual-band common-aperture system[J]. Journal of Applied Optics, 2020, 41(3): 435-440. (in Chinese). doi: 10.5768/JAO202041.0301001 [15] YU J, SHEN ZH X, WANG ZH SH. Compact dual band/dual FOV infrared imaging system with freeform prism[J]. Optics Letters, 2021, 46(4): 829-832. doi: 10.1364/OL.412091 [16] BELAY G Y, OTTEVAERE H, MEURET Y, et al. Demonstration of a multichannel, multiresolution imaging system[J]. Applied Optics, 2013, 52(24): 6081-6089. doi: 10.1364/AO.52.006081 [17] ZHANG K, LI J CH, SUN S, et al. Optical system design of double-sided telecentric microscope with high numerical aperture and long working distance[J]. Optics Express, 2023, 31(14): 23518-23532. doi: 10.1364/OE.496322 -
下载:
全尺寸图片
幻灯片
计量
- 文章访问数: 302
- HTML全文浏览量: 97
- PDF下载量: 141
- 被引次数: 0
