文章基本信息

标题：超高速度CCDのダイナミックレンジ特性改善
本地全文：下载
作者：新井俊希 ; 北村和也 ; 米内淳等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2012
卷号：66
期号：1
页码：J17-J22
DOI：10.3169/itej.66.J17
出版社：The Institute of Image Information and Television Engineers
摘要：We successfully improved dynamic range characteristics in ultra high-speed CCDs. An equivalent circuit model of an ultra high-speed CCD was analyzed by Using a SPICE simulator to estimate the blunting of the input square wave pulse at the final step of the equivalent circuit. The result of the simulation clarified that the blunting of the input square wave pulse was the main bottleneck causing the drop in saturation signal level dependent on frame rate. A novel ultra high-speed CCD was designed and fabricated and can reduce the blunting of the input square wave pulse. The result of a driving experiment showed a dynamic range of 48.6 dB at one million frames per second, which is equivalent to digital 8 bits and 2.5 times higher than that of the previous ultra high-speed CCD.
关键词：超高速度CCD;超高速度カメラ;画素周辺記録型撮像素子;ダイナミックレンジ特性