| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recording apparatus, an information processing apparatus and a method for recording a hologram by which a hologram can be fast recorded even when a laser light source with low power is used. <P>SOLUTION: Reflected light by a polarizing beam splitter 13 is not wasted but used as reference light. Thereby, the laser light can be effectively used. As the reflected light by the polarizing beam splitter 13 carries signals, the original reflected light can not be used as reference light. By using a spatial filter which normalizes laser light carrying signals into light with Gaussian distribution, the reflected light by the polarizing beam splitter 13 can be used as reference light. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
