Spectrally dispersive imaging lidar system
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United States of America Patent
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Oct 26, 1993
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N/A
app pub date -
Apr 24, 1991
filing date -
Apr 24, 1991
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Abstract
An imaging UV/visible fluorosensing and Raman lidar system comprises an optical sensor for simultaneously measuring temporally, spatially and spectrally resolved laser backscatter from on the land, on or beneath the surface of bodies of water and in the atmosphere. The present invention utilizes 'active' interrogation or 'passive' interrogation for remotely and non destructively probing the spectrally-dependent optical properties of a scene. In the 'active' mode, the optical sensor of this invention comprises a transmitter (preferably a tunable solid state laser) which emits pulses of coherent light through a variable or adjustable field-of-view telescope whereupon the light pulses are then propagated towards a scene (e.g., land, sea or atmosphere). Thereafter, laser backscatter is collected by a second variable field-of-view telescope and directed to an imaging system and spectrally dispersive optical subsystem.
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