| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram system for performing multiple-recording or reproducing a multiple-recorded hologram. <P>SOLUTION: In the hologram system for reproducing information by making light from a light generator 1 incident on a recording medium 3 forming the hologram 4, the light generator 1 is composed of a substrate 10, and a plurality of light generator 11 and 11 arranged on the substrate 10. The light generator 11 comprises a laser oscillator for oscillating a laser beam having wider wavelength band width than a laser beam of a single mode. The hologram system is provided with a light condensing means 2 for condensing a plurality of pieces of light from each light generator 11 and 11 between the light generator 1 and the recording medium 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
