17 February 1995 3D image projection using large diffractive screens
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Proceedings Volume 2333, Fifth International Symposium on Display Holography; (1995) https://doi.org/10.1117/12.201938
Event: Display Holography: Fifth International Symposium, 1994, Lake Forest, IL, United States
Abstract
Holographic screens were previously reported by one of the authors (J. J. L.) as a means of keeping parallax when projecting images of objects and holophotographs. The images formed in that way offer stereoscopic vision to the audience, without the help of glasses, but in addition to that they offer color encoded continuous parallax effects when the onlooker changes position along a horizontal track. First, we report on the manufacture and use of diffractive screens of dimensions up to 1.14 m X 0.75 m that show all of the previous reported abilities. They were made by means of a ruby laser. In the next section a number of possible uses of those screens are presented, going from diffraction encoded projection of photographs, over real object projection, to transmission and reflection holograms. Magnifications by a factor of 20 were possible.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jose Joaquin Lunazzi, Jose Joaquin Lunazzi, Pierre Michel Boone, Pierre Michel Boone, } "3D image projection using large diffractive screens", Proc. SPIE 2333, Fifth International Symposium on Display Holography, (17 February 1995); doi: 10.1117/12.201938; https://doi.org/10.1117/12.201938
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