| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device which reads from a holographic storage medium (19) and/or writes to the holographic storage medium (19), the device reading from the holographic storage medium (19) and/or writing to the holographic storage medium (19) by using two or more reference lights (20a, 20b) which overlap in the holographic storage medium (19) to which the reading and/or writing of a single hologram are made. <P>SOLUTION: Two or more reference lights (20a, 20b) are incoherent to each other during reading and/or writing. <P>COPYRIGHT: (C)2010,JPO&INPIT |
