Displaced-beam confocal-reflection streak lindae apparatus with strip-shaped photocathode, for imaging very small volumes and objects therein
This invention relates generally to a system for detecting an object in a light reflecting medium using lidar. An imaging system for detecting the contents of a turbid medium which is at least partially transmissive of light. The system includes a light source for producing a series of discrete puls...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
04.06.2002
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| Online Access | Get full text |
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| Summary: | This invention relates generally to a system for detecting an object in a light reflecting medium using lidar.
An imaging system for detecting the contents of a turbid medium which is at least partially transmissive of light. The system includes a light source for producing a series of discrete pulse beams which are substantially uniform in intensity to illuminate sections of the medium, a large aperture optical element for collecting and focusing the reflected portions of the pulse beam, a streak tube with a very large photocathode for collecting the maximum amount of light from weak returns, and a detector. A volume display of the medium is generated by translating the transmitted and received light beams normal to the longitudinal axis of the pulse beam to illuminate adjacent sections of the medium, and combining the sections to provide a volume display. The motion is used to provide the scan of the pulse beam. |
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