Optical: systems and elements – Holographic system or element – Head up display
Patent
1995-06-07
1997-09-02
Henry, Jon W.
Optical: systems and elements
Holographic system or element
Head up display
359 9, 359 14, 359 23, G03H 128, G03H 130, G02B 532
Patent
active
056638159
ABSTRACT:
Heads-Up and heads-down displays employing holographic stereograms are provided. The stereograms can be oriented perpendicular to the user's line of sight (the 90.degree. case) or at angle to the line of sight (the "non-90.degree. case"). The stereograms are produced using a three-step process in which a series of two-dimensional perspective views are prepared, a H.sub.1 hologram is prepared from the two-dimensional perspective views, and a H.sub.2 hologram is prepared from the H.sub.1 hologram. For the non-90.degree. case, the two-dimensional perspective views are oriented at an angle relative to the plane of the H.sub.1 hologram during the preparation of that hologram. Similarly, during the preparation of the H.sub.2 hologram for this case, the H.sub.2 hologram is oriented at an angle relative to the H.sub.1 hologram. In this way, the viewing slits generated by the holographic stereogram are located in the vicinity of the user's eyes for the non-90.degree. case as is desired. In certain embodiments, the two-dimensional perspective views are transformed prior to being recorded on the H.sub.1 hologram.
REFERENCES:
patent: 3832027 (1974-08-01), King
patent: 4206965 (1980-06-01), McGrew
patent: 4339168 (1982-07-01), Haines
patent: 4364627 (1982-12-01), Haines
patent: 4411489 (1983-10-01), McGrew
patent: 4421380 (1983-12-01), McGrew
patent: 4445749 (1984-05-01), Benton
patent: 4737001 (1988-04-01), Moss
patent: 4778262 (1988-10-01), Haines
patent: 4790613 (1988-12-01), Moss
patent: 4807951 (1989-02-01), Moss
patent: 4818048 (1989-04-01), Moss
patent: 4830442 (1989-05-01), Moss
patent: 4832427 (1989-05-01), Nanba et al.
patent: 4834476 (1989-05-01), Benton
patent: 4932731 (1990-06-01), Suzuki et al.
patent: 4964684 (1990-10-01), Iovine
patent: 4981332 (1991-01-01), Smith
patent: 4998784 (1991-03-01), Freeman et al.
patent: 5011244 (1991-04-01), Smith et al.
patent: 5194971 (1993-03-01), Haines
patent: 5237433 (1993-08-01), Haines et al.
S.A. Benton, Photographic Holography, SPIE, 1983, vol. 391, pp. 2-9.
S. A. Benton, Display Holography, SPIE, 1985, vol. 532. pp. 8-13.
D.J. DeBitetto, Holographic Panoramic Stereograms Synthesized from White Light Recordings, Applied Optics, vol. 8, No. 8, Aug. 1969, p. 1740.
M.C. King, A.M. Noll, and D.H. Berry, A New Approach to Computer-Generated Holography, Applied Optics, vol. 9, No. 2, Feb. 1970, pp. 471-475.
W. J. Molteni, Black and White Holographic Stereograms, Proceedings of the International Symposium on Display Holography, vol. 1, Jul. 12-16, 1982, pp. 15-21.
W.J. Molteni, Natural Color Holographic Stereograms by Superimposing Three Rainbow Holograms, SPIE, vol. 462, Optics in Entertainment II, 1984, pp. 14 to 18.
W.J. Molteni, Computer-Aided Drawing of Holographic Stereograms, Proceedings of the International Symposium of Display Holography, vol. 2, 1985, pp. 223-230.
W.J. Molteni, Shear Lens Photography for Holographic Stereograms, SPIE, vol. 1461 Practical Holography V, 1991, pp. 132-139.
G. Saxby, Practical Holography, 1988, pp. 55-59, 246-259.
F. Untersher, J. Hansen, B. Schlessinger, Holography Handbook, 1987, pp. 288-293.
Molteni William J.
Volchok William J.
Henry Jon W.
Polaroid Corporation
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