Imaging system including scintillation conversion screen
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United States of America Patent
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Jun 14, 2005
Issued Date -
N/A
app pub date -
Mar 17, 2004
filing date -
Jun 23, 1995
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Expired
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Abstract
A portable, self-contained, electronic radioscopic imaging system uses an X-ray converter screen for converting impinging X-ray radiation to visible light, and thus each point impinged on the screen by X-ray radiation scintillates visible light emissions diverging from the screen. An emission modification lens layer, e.g., a prismatic brightness enhancement film or a sprayed on transmissive layer, through which the visible light emitted from the screen is transmitted is superposed with the screen for generally focusing the diverging visible light as a restricted cone of illumination propagating outwardly from each point impinged on the screen to increase the fraction of light directed into the collection cone and reducing the amount of scattered visible light from the screen.
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