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Improved optical filters for automated visual inspectionSides of spatial filter slits are shaped so that their contribution to signal is reduced, thus minimizing the number of scanning errors.
Document ID
19720000520
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Curtis, D. A. (Little /Arthur D./ Inc.)
Date Acquired
August 6, 2013
Publication Date
August 1, 1972
Subject Category
Physical Sciences
Report/Patent Number
HQN-10720
Report Number: HQN-10720
Accession Number
72B10521
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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