| 摘要 |
A hologram recording device records holograms by interference between an recording beam and a reference beam. The device includes an objective lens exhibiting a predetermined aberration. It is supposed that the laser beam applied to the beam splitter has an light intensity of 1, the recording beam and the reference beam emitted from the beam splitter have light intensities of P and 1−P, respectively, the optical magnification for the recording beam traveling from the beam splitter to the objective lens is a, and N pixels are used for modulation of the recording beam in the spatial light modulator. When the recording beam at the predetermined region has an amplitude 1/k times the amplitude of the reference beam, and the amplitude of the recording beam is X times as great as when there is no aberration, the predetermined aberration of the objective lens is determined to satisfy the formula: 0 < X < a ( 1 - P ) 0.6 P × 1 kN .
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