微光像增强器与大尺寸CMOS的直接耦合

高天阳; 曹峰梅; 王霞; 崔志刚

微光像增强器与大尺寸CMOS的直接耦合

1.
北京理工大学光电成像技术与系统教育部重点实验室，北京 100081
2.
中国通用技术研究院，北京 100091

基金项目:

国家重点研发计划项目 2019QY0902

详细信息

作者简介:
高天阳（1996-），男，河北廊坊人，硕士，主要从事微光夜视、图像处理方面的研究工作。E-mail：xiuchuan1115@foxmail.com

通讯作者:
崔志刚（1967-），男，河北石家庄人，研究员，博士，主要从事微光夜视光锥耦合等方面的研究工作。E-mail：forest508@163.com

中图分类号: TN223, TN206
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- 被引次数: 0
出版历程
- 收稿日期: 2020-09-14
- 修回日期: 2020-10-25
- 刊出日期: 2021-06-20

Direct Coupling of Low Light Image Intensifier with Large Size CMOS

1.
Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China
2.
China General Technology Research Institute, Beijing 100091, China

摘要

摘要: 通过将直径为40 mm的像增强器与全画幅尺寸CMOS直接耦合，对大尺寸直耦工艺进行了研究。针对使用透镜耦合制成的大尺寸ICCD/ICMOS体积大、光能损失大以及光锥耦合的器件莫尔条纹较多等问题提出采用直接耦合的工艺制作ICCD/ICMOS。文中研制的大尺寸ICMOS可获取更大视场内的信息，整机分辨率可达3800×1900 LW/PH，画面清晰，无明显莫尔条纹，结构紧凑，整机仅为手持数码相机大小，隐蔽性强，有利于在复杂环境中更准确、快速地获取目标信息。
- 直接耦合 /
- ICMOS /
- 光锥耦合 /
- 微光增强
Abstract: The large size direct coupling technology was studied by coupling a 40 mm diameter image intensifier with a full-frame CMOS. To solve the problems of large-size ICCD/ICMOS made by lens coupling, such as large volume, large light energy loss, and large number of moiré fringes in optical cone coupling devices, a direct coupling process is proposed to make ICCD/ICMOS. The large-size ICMOS developed in this study can obtain more information in the field of view. The resolution of the entire device is up to 3600×1800, the picture is clear, there is no obvious moiré fringe, and the structure is compact. The entire device has the size of a handheld digital camera and has strong concealability, which is conducive to obtaining target information more accurately and quickly in a complex environment.
- direct coupling /
- ICMOS /
- light cone coupling /
- low light level enhancement

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图 1 光锥耦合ICCD/ICMOS成像系统中的莫尔条纹以及干涉条纹

Figure 1. Moire fringes and interference fringes in ICCD/ICMOS fiber optic taper coupling imaging systems

下载: 全尺寸图片幻灯片

图 2 像增强器与CCD/CMOS耦合方式示意图

Figure 2. Schematic diagram of coupling mode between image intensifier and CCD/CMOS

下载: 全尺寸图片幻灯片

图 3 CMOS的激光开窗

Figure 3. CMOS laser windowing

下载: 全尺寸图片幻灯片

图 4 像增强器荧光屏微观图

Figure 4. Microscopic view of image intensifier screen

下载: 全尺寸图片幻灯片

图 5 像增强器实物图与打磨过程图

Figure 5. Photo and polishing process diagram of image intensifier

下载: 全尺寸图片幻灯片

图 6 直耦器件实物图

Figure 6. Photo of direct coupled device

下载: 全尺寸图片幻灯片

图 7 镜头卡口截圈示意图

Figure 7. Schematic diagram of lens mount

下载: 全尺寸图片幻灯片

图 8 微光夜视相机整机图

Figure 8. Photo of low light night vision camera

下载: 全尺寸图片幻灯片

图 9 微光夜视器件的分辨力测试图像

Figure 9. Resolution test image of LLL night vision device

下载: 全尺寸图片幻灯片

图 10 整机分辨力测试图像

Figure 10. Resolution test image of whole device

下载: 全尺寸图片幻灯片

图 11 全画幅与半画幅拍摄画面对比

Figure 11. Full frame and half frame photo contrast

下载: 全尺寸图片幻灯片

表 1 耦合器件的主要参数

Table 1. The main parameters of the coupler

Main parameters of CMOS
Chip size	Silent frame (35.6 mm×23.8 mm)
Effective pixels	24 million
Video-capture	4K/60P, 50P
Main parameters of image intensifier
Screen diameter	40 mm
Radiation sensitivity(2856K)	790 mA/W
Signal noise ratio	23
Central resolution	60 lp/mm
Luminance gain	9782 cd/m²/lx
Maximum output brightness	6.4 cd/m²
Equivalent background brightness	1.4×10^-9 lx

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参考文献(10)

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