Holographic-stereogram-forming apparatus, diffusing member, and holographic-stereogram-forming method

A holographic-stereogram-forming apparatus includes a laser beam source that generates a laser beam to be split into an object beam and a reference beam; a display that displays an original image corresponding to a substantially strip-shaped holographic element constituting a holographic stereogram...

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Bibliographic Details
Main Authors Ogasawara, Yasuhiro, Nakamura, Shigetoshi, Sakamaki, Motohiko, Igusa, Masahiro, Minabe, Jiro, Kikuchi, Takashi
Format Patent
LanguageEnglish
Published 06.11.2018
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
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Summary:A holographic-stereogram-forming apparatus includes a laser beam source that generates a laser beam to be split into an object beam and a reference beam; a display that displays an original image corresponding to a substantially strip-shaped holographic element constituting a holographic stereogram containing parallax information in a horizontal direction; a diffusing unit provided on a light-emission side of the display and including optical elements having different thicknesses in a direction of light transmission, the optical elements being arranged in a matrix and each having a substantially rectangular shape with a vertical length being shorter than a horizontal length, the diffusing unit diffusing object beam more widely in the vertical direction than in the horizontal direction, the object beam to be diffused by the diffusing unit being generated by the display; and a condensing unit that condenses the object beam diffused by the diffusing unit on a hologram recording medium.
Bibliography:Application Number: US201615007799