Abstract

Employing holographic techniques, Hildebrand and Haines have demonstrated that a multiple frequency source can be used to generate range contours on or near an image. Supplementing their system with an auxiliary imaging system, we show that contours can be generated over much larger surfaces. With our modified system, it is also very easy to generate contours denoting constant depth rather than constant range. Experimental results are presented that show depth contours representing separations of 9.25 μ over a surface area of about 80 cm2.

© 1968 Optical Society of America

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