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Optical Engineering

Holophotography with a diffraction grating
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Paper Abstract

Color encoding of depth is shown to occur naturally in images of objects observed through diffraction gratings under common white light illumination. A synthetic image is then obtained from a single point of view, a phenomenon that can be applied to stereophotography. The image can be recorded in a common color photograph, providing a simple method of visual decoding by means of ordinary colored 3-D spectacles. The fundamental equations and the photographic procedure for maximum fidelity in three-dimen sional reproduction are described. The result is a photograph that has the capability of registering all of the views of an object in a continuous sequence, which is called holophotography and was previously obtained by means of a hologram. By eliminating the need for a laser and holographic film, a new technique for holography in white light is foreseen.

Paper Details

Date Published: 1 January 1990
PDF: 4 pages
Opt. Eng. 29(1) doi: 10.1117/12.55567
Published in: Optical Engineering Volume 29, Issue 1
Show Author Affiliations
Jose Joaquin Lunazzi, Univ. Estadual de Campinas (Brazil)


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