Abstract

A comparison has been made of atmospheric attenuation of brightness contrast data obtained by photographic and by photoelectric processes. The comparison involved the use of a photoelectric telephotometer and a photographic telephotometer of practically the same optical and mechanical design. Atmospheric attenuation of brightness contrast data was obtained for four practically monochromatic regions of the visible spectrum using plane objects subtending the same angle with respect to the point of observation and covering a range of approximately eight miles. The data obtained using the two types of equipment were found to be in close agreement.

© 1949 Optical Society of America

A Photoelectric Method of Measuring the Atmospheric Attenuation of Brightness Contrast Along a Horizontal Path for the Visible Region of the Spectrum*

Howard S. Coleman, Fred J. Morris, Harold E. Rosenberger, and Marshall J. Walker
J. Opt. Soc. Am. 39(7) 515-521 (1949)

A Comparison of Visual and Photoelectric Measurements of the Attenuation of Brightness Contrast by the Atmosphere*

Howard S. Coleman and Harold E. Rosenberger
J. Opt. Soc. Am. 40(6) 371-372 (1950)

Attenuation of Photographic Contrast by the Atmosphere

Melvin J. Mazurowski and D. Roger Sink
J. Opt. Soc. Am. 55(1) 26-30 (1965)

The Attenuation of Brightness Contrast Caused by Atmospheric Optical Haze*

Howard S. Coleman and Harold E. Rosenberger
J. Opt. Soc. Am. 40(8) 507-508 (1950)

Sunlight and Skylight as Determinants of Photographic Exposure. II. Scene Structure, Directional Index, Photographic Efficiency of Daylight, Safety Factors, and Evaluation of Camera Exposure

Loyd A. Jones and H. R. Condit
J. Opt. Soc. Am. 39(2) 94-135 (1949)