Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1991-07-05
1992-11-10
Fields, Carolyn E.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 18, 359 22, 359204, 359569, 359574, G02B 2610
Patent
active
051629291
ABSTRACT:
A three-color laser scanner using a holographically-generated plane linear grating disk (hologon). The disk includes peripherally-arranged facets having identical multiplexed diffraction gratings. Each multiplexed grating is formed from plural superimposed interference patterns accumulated by multiple exposures to light from a single monochromatic laser beam source. The multiplexed grating is optimized to diffract certain light wavelengths in a single, multichromatic (plural wavelength) input laser beam. The diffracted output beam comprises respective wavelength beam components that simultaneously scan in collinear fashion. Modulation of the plural wavelength components in the incident beam allows the output beam to scan expose a multicolor image at the image plane.
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patent: 4761046 (1988-08-01), Funato
patent: 4848863 (1989-07-01), Kramer
"Light Beam Deflection Using Holographic Scanning Techniques", by D. H. McMahon et al., Feb. 1969, vol. 8, No. 2, Applied Optics.
Optical Information Processing and Holography, by W. Thomas Cathey, 1974, pp. 289-293, 310-311, John Wiley & Sons.
Handbook of Optical Holography, by H. J. Caulfield, 1979, pp. 191-204, 207-208, Academic Press, Inc.
Cuffney Robert H.
Klees Kevin J.
Narayan Badhri
Roddy James E.
Voci Laurie L.
Dudley Mark Z.
Eastman Kodak Company
Fields Carolyn E.
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