A Real-Time Ultraviolet Radiation Imaging System Using an Organic Photoconductive Image Sensor

被引：11
|
作者：
Okino, Toru [1 ]
Yamahira, Seiji [1 ]
Yamada, Shota [1 ]
Hirose, Yutaka [1 ]
Odagawa, Akihiro [1 ]
Kato, Yoshihisa [1 ]
Tanaka, Tsuyoshi [1 ]
机构：
[1] Panasonic Corp, 1 Kotari Yakemachi, Nagaokakyo, Kyoto 6178520, Japan
来源：
SENSORS | 2018年 / 18卷 / 01期
关键词：
organic photoconductive film; CMOS image sensor; ultraviolet; hydrogen flame; corona discharge;
D O I：
10.3390/s18010314
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We have developed a real time ultraviolet (UV) imaging system that can visualize both invisible UV light and a visible (VIS) background scene in an outdoor environment. As a UV/VIS image sensor, an organic photoconductive film (OPF) imager is employed. The OPF has an intrinsically higher sensitivity in the UV wavelength region than those of conventional consumer Complementary Metal Oxide Semiconductor (CMOS) image sensors (CIS) or Charge Coupled Devices (CCD). As particular examples, imaging of hydrogen flame and of corona discharge is demonstrated. UV images overlapped on background scenes are simply made by on-board background subtraction. The system is capable of imaging weaker UV signals by four orders of magnitude than that of VIS background. It is applicable not only to future hydrogen supply stations but also to other UV/VIS monitor systems requiring UV sensitivity under strong visible radiation environment such as power supply substations.
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页数：9
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