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14 May 1980 Optical Techniques For Increasing Image Width In Cylindrical Holographic Stereograms
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Proceedings Volume 0215, Recent Advances in Holography; (1980)
Event: 1980 Los Angeles Technical Symposium, 1980, Los Angeles, United States
The image width in cylindrical holographic stereograms has been limited to about one-third the diameter of the display drum. An analysis of the optical system shows that producing an image which fills two-thirds of the drum diameter or more requires a cylindrical lens with an f/number of 0.5 or smaller. Cylindrical lenses of such small f/number and adequate optical quality are not commonly available. These optical characteristics can be achieved readily, however, with a holographic element on a curved surface. A system designed for increasing image width making use of such a holographic lens is described. The requirement for an extremely low f/number cylindrical lens can be eliminated by another technique which involves curving the holographic film over a short radius platen. This technique is also described. It is shown that both these techniques compensate the nonlinear horizontal magnification distortion in cylindrical holographic stereograms.
© (1980) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lloyd Huff and Richard L. Fusek "Optical Techniques For Increasing Image Width In Cylindrical Holographic Stereograms", Proc. SPIE 0215, Recent Advances in Holography, (14 May 1980);


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