Image Photography Method, Image Photography Play Method, Spatial Lighting Modulator, Image Play Device, and Digital Hologram Forming Device
AssigneeNational University Corporation Toyohashi University of Technology
InventorsMitsuteru Inoue, Hiroyuki Takagi
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Abstract
Submitted is an image photography play method which is suited to playing a stereoscopic video. The image photography method comprises: a step of forming a hologram pattern from a reference light and a subject light; a step of digitally processing the obtained hologram pattern; a step of writing the digitized hologram pattern as a magnetized vector pattern to a spatial lighting modulator which is formed from a magneto-optical material; and a step of inputting linearly polarized light into the spatial lighting modulator and playing an image according to the digitized hologram pattern.
Claims13
A method of photographing an image, the method comprising the steps of:
- forming a hologram pattern based on a reference light and an object light;
- digitizing the formed hologram pattern;
- and
- writing the digitized hologram pattern, as a pattern of magnetization vectors, into a stereoscopic image formation surface provided by a surface of a magneto-optical material.
A spatial light modulator comprising:
- a stereoscopic image formation surface provided by a magneto-optical material, wherein
- the stereoscopic image formation surface has magnetic moments, axes of which are aligned in a direction perpendicular to the surface,
- the stereoscopic image formation surface includes a first region having the axis of the magnetic moment in a first direction and a second region having the axis of the magnetic moment in a direction opposite to the first direction, and
- width of the minimum unit of the first region and the second region is equal to or less than 1 μm.
A digital hologram forming device comprising:
- a spatial light modulator having a stereoscopic image formation surface provided by a magneto-optical material, wherein the stereoscopic image formation surface has magnetic moments, axes of which are aligned in a direction perpendicular to the surface, wherein the stereoscopic image formation surface includes a first region having the axis of the magnetic moment in a first direction and a second region having the axis of the magnetic moment in a direction opposite to the first direction, and wherein width of the minimum unit of the first region and the second region is equal to or less than 1 μm;
- and
- a magnetic moment inverting device that supplies heat to the stereoscopic image formation surface of the spatial light modulator by the minimum unit width of the first region and the second region to invert the magnetic moment of the stereoscopic image formation surface at the part supplied with the heat, wherein
- the magnetic moment inverting device is a general spatial light modulator, and
- the general spatial light modulator reflects an energy beam to cause the reflected energy beam to be incident on a second surface.
Dependencies are inferred from the claim text.