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Image Intensifiers (I.I.)

Hamamatsu Photonics 影像增強器即使在黑暗的條件下也可提供高對比度的圖像。並可用於夜間(監視)觀看,以及科學和技術研究。匣控影像增強器對於觀測高速現象和隨著時間推移的物理變化分析(觀測高速移動的物體,螢光壽命的觀察,和生物發光和化學發光影像等)特別有用。

Image intensifiers produce high-contrast images even under dark conditions, and are used for night-time (surveillance) viewing as well as for scientific and technical research. Gated image intensifiers are especially useful for observation of high-speed phenomena and analysis of physical changes over time (observation of high-speed moving objects, fluorescence lifetime observation, and bioluminescence and chemiluminescence imaging, etc.).

Image Intensifier

Image Intensifier
Image intensifiers (often abbreviated as I. I.) were primarily developed for nighttime viewing and surveillance under moonlight or starlight. Image intensifiers are capable of detecting and amplifying low-light-level images (weak emissions or reflected light) for bringing them into view as sharp contrast images. Image intensifier applications have spread from nighttime viewing to various fields including industrial product inspection and scientific research, especially when used with CCD cameras (intensified CCD or ICCD). Gate operation models are also useful for observation and motion analysis of high-speed phenomena (high-speed moving objects, fluorescence lifetime, bioluminescence and chemiluminescence images). Some major image intensifier applications are introduced here. 
 

High-Speed Gated Image Intensifier Unit

High-Speed Gated Image Intensifier Unit

High-speed gated image intensifier units (hereafter gated I.I. units) are able to capture an "instantaneous image" of high-speed phenomena occurring within extremely short time durations by means of "gate operation (shutter operation)". Gate operation is basically the same function as a camera shutter, but gated I.I. units perform this operation electronically in a minimum gate time of 1/300 000 000th of a second. Another feature is that background light and excitation light outside the measurement time can be eliminated by synchronizing the gate operation with a laser pulse or other signal.