Abstract

This paper describes the mathematical analysis of the light flux behavior in an optical scanner system. The system consists of a cathode ray tube (CRT) light source, a focusing lens system, a semidiffusing document plane, and several light-collecting photomultiplier tubes (PMTs). The flux intercepted by the PMTs is calculated as a function of: the position intensity distribution of the CRT source spot, the lens system’s focusing, absorbing, and vignetting properties, the document plane’s reflecting, diffusing, and absorbing properties, and the positions and orientations of the PMTs. The FORTRAN program which implemented these concepts is discussed.

© 1965 Optical Society of America

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