Abstract

An instrument is described for the study of diffuse reflectance and transmittance at various wavelengths in the visible and infrared spectral regions. The apparatus consists essentially of a monochrometer and a goniometer arranged in such a way that the material to be studied is illuminated with monochromatic light and the diffuse reflected and transmitted energy is measured by scanning the goniometer about the sample. The advantages of the instrument are (a) absolute measurements of total reflectance and transmittance are obtained; and (b) the angular distribution of the scattering of the reflected and transmitted energy are determined.

© 1953 Optical Society of America

Automatic Recording Reflectometer for Measuring Diffuse Reflectance in the Visible and Infrared Regions

Willard L. Derksen, Thomas I. Monahan, and Alfred J. Lawes
J. Opt. Soc. Am. 47(11) 995-999 (1957)

Experiments Concerning Infrared Diffuse Reflectance Standards in the Range 0.8 to 20.0 Microns

John T. Agnew and Richmond B. McQuistan
J. Opt. Soc. Am. 43(11) 999-1007 (1953)

A Reflectometer for Measuring Diffuse Reflectance in the Visible and Infrared Regions

Willard L. Derksen and Thomas I. Monahan
J. Opt. Soc. Am. 42(4) 263-265 (1952)

Quantitative Evaluation of Multiply Scattered and Diffusely Reflected Light in the Direction of a Stellar Source in a Rayleigh Atmosphere*

Diran Deirmendjian and Zdeněk Sekera
J. Opt. Soc. Am. 43(12) 1158-1165 (1953)

Photoelectric Raman Spectrometer with Automatic Range Changing. I. Conversion of Photographic Instrument*

Robert F. Stamm, C. F. Salzman, and Thomas Mariner
J. Opt. Soc. Am. 43(2) 119-125 (1953)