Title: 2-dimensional modulation method for recording hologram and hologram device
Application Number: 200580010025 Application Date: 2005.03.15
Publication Number: 1938764 Publication Date: 2007.03.28
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G11B7/0065;G11B7/135;G03H1/02;G03H1/12;G03H1/26
Applicant(s) Name: Pioneer Corp. Address:
Inventor(s) Name:
Attorney & Agent: huanglun wei
Abstract:
    There is provided a 2-dimensional modulation method for recording hologram capable of preventing deterioration of the reproduction performance when a position shift is caused and stably performing recording or reproduction. The 2-dimensional modulation method for recording hologram generates an interferable light including page data via a space optical modulator having pixels arranged 2-dimensionally. The pixels of the space optical modulator are partitioned into a plurality of blocks each having m (m is an integer) adjacent pixels. Between adjacent blocks, there is provided a boundary portion having a width corresponding to at least one pixel of the space optical modulator or one pixel of an image detection sensor used for reproducing the page data recorded and a width having a distance between adjacent pixels in each block, and shielding light.
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