| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical head which can be small-sized and integrated, and a hologram recording device using the head. <P>SOLUTION: In this optical head 1 having an integration part 2 for performing recording and reproducing of page data for a reflection type recording medium 3, the integration part 2 is constituted by integrating recording and reproducing parts 2a corresponding to each data bit of the page data, the recording and reproducing part 2a has a light emitting part 10 for emitting object light S and reference light R, an optical switch 21 for transmitting or intercepting the object light S, and a light receiving part 40, records bit data depending on presence/no presence of hologram forming, and reproduces bit data depending on presence/no presence of received light of the reference light R in the light receiving part 40 by irradiating a recording position with the reference light R, and each of the recording and reproducing parts 2a performs recording/reproducing of page data to/from the recording medium 3 by performing recording/reproducing of bit data to/from the recording medium 3, respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
