| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recording and reconstructing apparatus which is usable for recording and reconstructing of various kinds of a multiplex system and to miniaturize an optical system. <P>SOLUTION: At the time of reconstructing, reference light is emitted onto a hologram recording medium 80 similarly at the time of recording through a reference light optical system 500 and the diffracted light (reconstructing light) generated from the hologram recording medium 80 is reflected to an opposite direction by a reflecting mirror 25 of a diffracted light reversing optical system 600 to be returned to the original optical path, is transmitted through the hologram recording medium 80 and the transmitted light is made incident on a signal light optical system 400 for reconstruction in common use as the signal light optical system and thereafter the optical path is branched by a polarization beam splitter 14 and the transmitted light is guided to an image sensor 19, and thereby the data is reconstructed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
