23 May 1984 Natural Color Holographic Stereograms By Superimposing Three Rainbow Holograms
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Proceedings Volume 0462, Optics in Entertainment II; (1984) https://doi.org/10.1117/12.941155
Event: 1984 Los Angeles Technical Symposium, 1984, Los Angeles, United States
A single-wavelength laser and a set of color-separated, black-and-white, two-dimensional photographs are used to produce three holographic stereograms, each containing a lightness scale corresponding to an appropriate concentration of the original primary color. The real images are individually projected and exposed onto a single holographic emulsion. This hologram, when reconstructed in white light, produces the overlapping spectra of three rainbow holograms. In image areas of equal density, these superimposed spectra create a shade of gray proportional to their combined intensities. All mixtures of colors and tones are found in other image areas. Detailed studies of the primary-color, viewing zones reveal misalignments and curvatures due to chromatic, spherical aberrations. The resulting color misregistration limits image depth to a few centimeters. However, within a restricted viewing area, three-dimensional images do appear in full natural color.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William J Molteni, "Natural Color Holographic Stereograms By Superimposing Three Rainbow Holograms", Proc. SPIE 0462, Optics in Entertainment II, (23 May 1984); doi: 10.1117/12.941155; https://doi.org/10.1117/12.941155

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