Abstract

By means of a quartz mercury lamp, a thermocouple and absorbing screens, the diffuse reflectivities in the region λ0.3 to 7μ were measured for snow, sand, crushed quartz, plaster paris, white paper, white cotton cloth, sodium carbonate and sodium chloride. The ultraviolet reflectivity of snow was relatively high, being two to four times that of sand. This gives a physical basis for the current idea that ultraviolet glare may be an important factor in snow blindness.

© 1928 Optical Society of America

The Penetration of Ultraviolet Light into Pure Water and Sea Water*

E. O. Hulburt
J. Opt. Soc. Am. 17(1) 15-22 (1928)

A Fluorescent Ultraviolet Photometer

Wm. T. Anderson and Elias Gordon
J. Opt. Soc. Am. 16(3) 224-229 (1928)

Transmission of Ultraviolet Radiations by Quartz Prism Monochromators

William T. Anderson, Hugh D. Fraser, and Lester F. Bird
J. Opt. Soc. Am. 17(6) 454-462 (1928)

The Infrared Absorption Spectra of Acetylene, Ethylene and Ethane

Aaron Levin and Charles F. Meyer
J. Opt. Soc. Am. 16(3) 137-164 (1928)

Focusing Electrons Reflected or Emitted at Equal Angles from a Plane Surface

D. A. Wells
J. Opt. Soc. Am. 16(5) 355-356 (1928)