Optical: systems and elements – Holographic system or element – Using modulated or plural reference beams
Patent
1996-05-16
1998-10-13
Shafer, Ricky D.
Optical: systems and elements
Holographic system or element
Using modulated or plural reference beams
359 11, 359 28, 359900, 369103, 365125, 365216, G03H 110, G03H 126
Patent
active
058220925
ABSTRACT:
A system for converting an image into a hologram formed from diffraction gratings includes obtaining image data for each pixel in an image to be converted, putting it into digital form and using the image data to control portions of a laser beam split into a reference beam and at least one object beam. The diffraction gratings are formed by an interference pattern of a reference beam and at least one object beam intersecting on the surface of a photoresist material on a pixel-by-pixel basis. Modulation of at least one object beam and adjustment of the angle at which that beam interferes with the reference beam on the photoresist material is used to reflect image data for each pixel of the image being converted into a hologram consisting of diffraction gratings. By using this technique and selecting the spacings between pixel pairs on the photosensitive surface, the angle at which a viewer will see a predetermined image or reflecting light from the hologram is determined, as well as the apparent position of the image created by reflecting light from the hologram constituted by the spaced diffraction gratings.
REFERENCES:
patent: 3560071 (1971-02-01), Silverman et al.
patent: 3615123 (1971-10-01), Wuerker
patent: 3829838 (1974-08-01), Lewis et al.
patent: 3832027 (1974-08-01), King
patent: 3887276 (1975-06-01), Clay et al.
patent: 4001874 (1977-01-01), Lacotte
patent: 4111519 (1978-09-01), Gillis et al.
patent: 4206965 (1980-06-01), McGrew
patent: 4212536 (1980-07-01), Bencze et al.
patent: 4430668 (1984-02-01), Miles, Jr.
patent: 4498729 (1985-02-01), Benton
patent: 4498740 (1985-02-01), Caulfield
patent: 4655542 (1987-04-01), Dube
patent: 4778262 (1988-10-01), Haines
patent: 5058992 (1991-10-01), Takahashi
patent: 5119214 (1992-06-01), Nishii et al.
patent: 5138471 (1992-08-01), McGrew
patent: 5216527 (1993-06-01), Sharnoff et al.
patent: 5262879 (1993-11-01), Davis
patent: 5291317 (1994-03-01), Newswanger
M. Nakajima et al. Computer-Generated Polarization Holography: Automatic Hologram Making System and the Quality of the Reconstructed Image, Proceedings of ICO-11 Conference (Sep. 10-17, 1978).
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