Solid state replacement of rotating mirror cameras
2007
Rotating mirror cameras have been the mainstay of mega-frame per second imaging for decades. There is still no
electronic camera that can match a film based rotary mirror camera for the combination of frame count, speed, resolution
and dynamic range. The rotary mirror cameras are predominantly used in the range of 0.1 to 100 micro-seconds per
frame, for 25 to more than a hundred frames. Electron tube gated cameras dominate the sub microsecond regime but are
frame count limited. Video cameras are pushing into the microsecond regime but are resolution limited by the high data
rates. An all solid state architecture, dubbed 'In-situ Storage Image Sensor' or 'ISIS', by Prof. Goji Etoh has made its
first appearance into the market and its evaluation is discussed.
Recent work at Lawrence Livermore National Laboratory has concentrated both on evaluation of the presently available
technologies and exploring the capabilities of the ISIS architecture. It is clear though there is presently no single chip
camera that can simultaneously match the rotary mirror cameras, the ISIS architecture has the potential to approach their
performance.
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