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Proceedings Paper

The Design Of A Laser Interferometer For Image Tube Resolution Measurements
Author(s): Carl R. Zeisse
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Paper Abstract

The optical transfer function of an optical component such as a lens or image tube is of great importance because this one function, together with any scene entering the lens, can be used to predict the scene leaving the lens. The concept of the optical transfer function, which is the product of a phase transfer function and a modulation transfer function (MTF) has been well described in the literature (Ref. 1). The analogous situation in electronics is that of an arbitrary waveform entering a linear electronic black box. Armed only with the transfer function, the engineer can predict the output waveform in the following way: the input waveform is decomposed into its Fourier components, each component is multi-plied by the value of the transfer function at that frequency, and the result is summed over all frequencies. The transfer function changes the amplitude and shifts the phase of each Fourier component.

Paper Details

Date Published: 16 April 1973
PDF: 6 pages
Proc. SPIE 0032, Developments in Electronic Imaging Techniques II, (16 April 1973); doi: 10.1117/12.953594
Show Author Affiliations
Carl R. Zeisse, Naval Electronics Laboratory Center (United States)

Published in SPIE Proceedings Vol. 0032:
Developments in Electronic Imaging Techniques II
Ralph Zirkind; Sol Nudelman; Alvin Schnitzler, Editor(s)

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