Abstract

Calculations are made for the relative effects of temperature change and emissivity change causing a change in radiance. These are done for the total radiation and the monochromatic radiation at the wavelength that maximizes the contrast. They are done for no background contribution, a uniform background, and a general, nonuniform background. The general result, subject to some of the details, is that for a 300 K ambient, changes in emissivity of 0.01 correspond to a temperature change of about 0.5 K.

© 1975 Optical Society of America

Spectral emission signatures of ambient temperature objects

R. J. Brown and B. G. Young
Appl. Opt. 14(12) 2927-2934 (1975)

Atmospheric Vision 0.35 μm ≲ λ ≲ 14 μm

Dieter H. Höhn
Appl. Opt. 14(2) 404-412 (1975)

Transfer Requirements for Target Radiance Simulation in Optical Projection Simulators

Walter E. Woehl
Appl. Opt. 14(1) 124-128 (1975)

Effect of Temperature Gradients on the Wave Aberration in Athermal Optical Glasses

F. Reitmayer and H. Schroeder
Appl. Opt. 14(3) 716-720 (1975)

Emissivities of diffuse cavities, II: Isothermal and nonisothermal cylindro-cones

R. E. Bedford and C. K. Ma
J. Opt. Soc. Am. 65(5) 565-572 (1975)