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Optical Engineering

A Portable Instrument for Measuring Apparent Directional Reflectance
Author(s): R. E. Oliver; J. K. Berry; J. A. Smith
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Paper Abstract

A portable battery-powered spectroradiometer has been constructed for the measurement of the apparent directional reflectance of natural targets. A silicon detector that is tripod mounted and positioned to monitor a horizontally oriented reference panel determines the target irradiance. A second detector for measurement of target radiance is mounted on the tripod swivel head. Electronic switching provides alter-nate detector references for the determination of apparent directional reflectance. Snap-on interference filters allow measurement in desired spectral bands. Equipment calibration procedures are discussed and typical experimental radiation data are given.

Paper Details

Date Published: 1 June 1975
PDF: 4 pages
Opt. Eng. 14(3) 143244 doi: 10.1117/12.7971876
Published in: Optical Engineering Volume 14, Issue 3
Show Author Affiliations
R. E. Oliver, Colorado State University and IBM Corporation (United States)
J. K. Berry, Colorado State University (United States)
J. A. Smith, Colorado State University (United States)

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