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Proceedings Article

New possibilities in the utilization of holographic screens

[+] Author Affiliations
Jose J. Lunazzi

Univ. Estadual de Campinas (Brazil)

Proc. SPIE 1667, Practical Holography VI, 289 (May 1, 1992); doi:10.1117/12.59647
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From Conference Volume 1667

  • Practical Holography VI
  • Stephen A. Benton
  • San Jose, CA | March 09, 1992

abstract

Directionality in a holographic screen may be useful for projecting images to be seen in complete horizontal parallax. The continuous sequence of views from an object may be transferred from the object and enlarged at the screen, giving the same appearance of a holographic image. Due to the actual movement of the object, images in four dimensions may now be produced with a projector whose spatial dimensions are much smaller than those of the screen. One technique that allows for this result is the chromatic encoding of views by means of holographic optical elements. This is demonstrated to be a complete reproduction of the original light distribution, although its spectral continuous distribution of colors makes each view monochromatic, not allowing for good color reproduction. The resulting system may substitute conventional holography in some visual applications if registering is not necessary but only the effect of the phantasmagoric image. Furthermore, it allows for the enlarging of holographic images, performing also the direct conversion of the image of a conventional off- axis hologram to a white-light image.

© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Jose J. Lunazzi
"New possibilities in the utilization of holographic screens", Proc. SPIE 1667, Practical Holography VI, 289 (May 1, 1992); doi:10.1117/12.59647; http://dx.doi.org/10.1117/12.59647


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