Abstract

Light gathering properties are derived which are applicable to any optical system with an extended light source when all the light rays incident at the entrance aperture are collected at or pass through the exit aperture.

A fundamental property of such an optical system is given by $A_3/A_2={n_2}^2{\overline{\omega }}_2(1-{\overline{\omega }}_2/4\pi )/{n_3}^2{\overline{\omega }}_3(1-{\overline{\omega }}_3/4\pi )$, where A₃ = area of exit aperture imbedded in a medium of refractive index n₃, A₂ = area of entrance aperture imbedded in a medium of refractive index n₂, ${\overline{\omega }}_3=\text{mean solid angle of light at the entrance aperture},$, and ${\overline{\omega }}_3=\text{mean solid angle of light at the entrance aperture}$.

© 1964 Optical Society of America

Transmission of Optical Energy Along Surfaces: Part I, Homogeneous Media

Harold Osterberg and Luther W. Smith
J. Opt. Soc. Am. 54(9) 1073-1078 (1964)

Application of the Sampling Theorem to Optical Diffraction Theory

Richard Barakat
J. Opt. Soc. Am. 54(7) 920-930 (1964)

Line Spread Function and Cumulative Line Spread Function for Systems with Rotational Symmetry

Richard Barakat and Agnes Houston
J. Opt. Soc. Am. 54(6) 768-773 (1964)

Optical Properties of Clean Molybdenum*

J. P. Waldron and D. W. Juenker
J. Opt. Soc. Am. 54(2) 204-207 (1964)

Intense Resonance Line Sources for Photochemical Work in the Vacuum Ultraviolet Region

Hideo Okabe
J. Opt. Soc. Am. 54(4) 478-481 (1964)