Abstract

A modification of schlieren optics was explored as a technique for industrial gas-leak detection. A high-contrast pattern on thin reflecting material was imaged with a zoom lens onto a negative of the same pattern as a method of eliminating the ordinary rays. The geometry of the industrial setting determines the useful spatial frequency of the pattern.

© 1996 Optical Society of America

White-light schlieren optics using bacteriorhodopsin as an adaptive image grid

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Compact color schlieren optical system

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Computer-simulated schlieren optics

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Schlieren measurements in the round cylinder of an optically accessible internal combustion engine

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