Abstract
The paper presents a theoretical development of the optical characteristics of photometers employing lenses. Both in-focus and out-of-focus operation are analyzed in detail for three types of photometers: a photometer employing fixed apertures, a photometer employing a simple lens, and a photometer employing a combination of a simple lens and a fixed aperture. The range of satisfactory operation of such instruments is carefully defined, as well as the gross errors which may occur in special applications.
© 1965 Optical Society of America
Full Article | PDF ArticleMore Like This
L. Ivan Epstein
J. Opt. Soc. Am. 39(3) 226-228 (1949)
Clayton H. Sharp, S. McK. Gray, W. F. Little, and H. J. Eckweiler
J. Opt. Soc. Am. 23(7) 234-245 (1933)
D. G. Green and F. W. Campbell
J. Opt. Soc. Am. 55(9) 1154-1157 (1965)