| 摘要 |
A hologram device reproduces information from a recording medium having holograms thereon by irradiating light beams emitted from a light source thereon. The light source is composed of a substrate and a plurality of light emitting units arranged on the substrate. A condensing unit is provided between the light source and the recording medium to condense a plurality of light beams emitted from the plurality of light emitting units onto approximately the same location of the recording medium.
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