Abstract

Some applications of diffusers require light to be scattered through only small angles, and light scattered through large angles is wasted. A method is described for making diffusers giving only small-angle scattering by etching finely ground glass plates with hydrofluoric acid. Figures are given relating etching time to peak transmitted intensity, beam width, and grain size.

© 1960 Optical Society of America

Two Instruments for Atmospheric Optics Measurements*

B. S. Pritchard and W. G. Elliott
J. Opt. Soc. Am. 50(3) 191-202 (1960)

Diffusion of Ultraviolet and Visible Light by Ground Surfaces of Fused Quartz

W. E. Knowles Middleton
J. Opt. Soc. Am. 50(8) 747-749 (1960)

Turbid Media with Plane-Parallel Surfaces*

Friedrich Kottler
J. Opt. Soc. Am. 50(5) 483-490 (1960)

Attainment of High Resolution with Diffraction Gratings and Echelles*

George R. Harrison and George W. Stroke
J. Opt. Soc. Am. 50(12) 1153-1158 (1960)

Absorbing Filters and High-Temperature Optical Pyrometry

D. R. Lovejoy
J. Opt. Soc. Am. 50(7) 698-706 (1960)