| 摘要 |
A holographic recording and reproduction apparatus (100) includes a spatial light modulator (112) for spatially modulating a luminous flux for holographic recording of information and an objective lens (106) for focusing object light and reference light for recording on a recording medium. The spatial light modulator (112) is controlled by a control device for generating a two-dimensional digital pattern corresponding to the information, that includes n first sub sets each including sixteen elements. The first sub set includes four second sub sets, and each second sub set has four elements. The control device sets one element among the elements included in each of three second sub sets among the four second sub sets to a first state and sets three elements to a second state, and sets four elements included in one remaining second sub set among the four second sub sets to the second state.
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