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Transmittance measurements of ultra violet and visible wavelength interference filters flown aboard LDEFA set of ten interference filters for the UV and VIS spectral region were flown on the surface of the Long Duration Exposure Facility (LDEF) Tray B-8 along with earth radiation budget (ERB) components from the Eppley Laboratory. Transmittance changes and other degradation observed after the return of the filters to Barr are reported. Substrates, coatings, and (where applicable) cement materials are identified. In general, all filters except those containing lead compounds survived well. Metal dielectric filters for the UV developed large numbers of pinholes which caused an increase in transmittance. Band shapes and spectral positioning, however, did not change.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Mooney, Thomas A.
(Barr Associates, Inc. Westford, MA, United States)
Smajkiewicz, Ali
(Barr Associates, Inc. Westford, MA, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
Nonmetallic Materials
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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