Volume hologram, manufacturing method thereof, and shift method of wavelength spectrum of diffracted light
AssigneesSony Corporation, Sony Dadc Corporation
InventorsTakashi Matsubara, Akira Shirakura, Yuji Nakagawa
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Abstract
A manufacturing method of the volume hologram includes a step of hologram recording for recording information to a hologram recording layer and a pressing step of the hologram recording layer for pressing at least a portion of the hologram recording layer recorded with the information. In the step of pressing the hologram recording layer, the hologram recording layer recorded with information may change.
Claims18
A manufacturing method of a volume hologram comprising:
- a step of hologram recording for recording information in a hologram recording layer;
- and
- a pressing step of the hologram recording layer for pressing at least a portion of the hologram recording layer in which the information is recorded,
- wherein the pressing step of the hologram recording layer involves change in the hologram recording layer recorded with the information.
A volume hologram comprising one or more regions in which wavelength spectrums of diffracted lights are different,
- wherein the thickness in the region in which the wavelength spectrum of diffracted light is different and the thickness in the remaining region are different.
A volume hologram comprising a hologram recording layer including one or more regions formed with change,
- wherein the region formed with the change is obtained by pressing at least a portion of the hologram recording layer recorded with the information.
A shift method of a wavelength spectrum of a diffracted light, wherein the wavelength spectrum of the diffracted light is partially changed by partially pressing a photosensitive material recorded with a hologram.
Dependencies are inferred from the claim text.