Extended performance infrared directional reflectometer for the measurement of total, diffuse and specular reflectance

This paper presents a description of a fully automated, computer-controlled Hemispherical Directional Reflectometer (HDR). It fills the need in many fields of research and development for a device with HDR measurement capabilities which is state-of-the-art in wavelength coverage to 25.0 μm and higher, angular polarization resolved coverage 20 to 80 degrees, partition of reflected radiation […]

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Bidirectional reflectance data to support paint development and signature calculations

Commonly used methods of developing paints and evaluating their performance involve calculating the signatures of vehicles and backgrounds, this requires experimental determination of the directional and bidirectional reflectance of the surfaces involved. This paper describes the measurements required, the instruments used to make such measurements, and computer codes and techniques used for paint development and […]

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