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.).
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.