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Ambient-light-absorbing screen for front projectionScreen permits front surface projection of collimated light beam under conditions of high extraneous illumination. Screen has high reflective efficiency over any desired viewing area. Its optical properties are maintained when moisture droplets are present on the external front planar surface. Surface is easily cleaned and maintained.
Document ID
19700000455
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hilborn, E. H.
Date Acquired
August 5, 2013
Publication Date
November 1, 1970
Subject Category
Physical Sciences
Report/Patent Number
ERC-90017
Report Number: ERC-90017
Accession Number
70B10472
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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