超高灵敏CCD摄像机

• 作 者: 吴秀丽
• 出 处: 光机电信息
• 发表日期: 1995年01期
• 关键词: 摄象机 长时间曝光 超高灵敏度 科学测量 微通道板 暗电流 光强 孔径比 空间分辨率 量子效率

对微弱光的摄象技术有时要求很高,以往一般的摄像方法是使用超高灵敏摄象机.具有代表性的是SIT式(Silicon Intensified)摄象机.随着技术的进步,该摄象机被微通道板图象放大器和CCD相结合的ICCD摄象机所取代.称为COOLED CCD摄象机,不用微通道板图象放大器,通过长时间曝光来实现超高灵敏度的系统,最近科学测量领域中广泛得到应用,本文就此问题进行叙述,为参考起见,C—CCD摄象机和各种摄象器件的摄象,也可在光强范围内进行如图1所示.

For weak light imaging technology sometimes demanding, the general camera method is the use of ultra-sensitive camera is representative of the SIT-type (Silicon Intensified) camera.As the technology advances, the camera The machine is replaced by an ICCD camera that combines a microchannel plate image amplifier and a CCD, a COOLED CCD camera that uses ultra-high-sensitivity systems for long-time exposure without the use of microchannel plate image amplifiers. Recent science Measurement has been widely used in the field, this article describes the issue, for reference, C-CCD cameras and a variety of camera imaging, but also in the light intensity range shown in Figure 1.