| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recorder in which recording density can be improved by effectively utilizing a frequency dynamic range with which recording for a hologram recording medium can be performed. <P>SOLUTION: This recorder comprises a light source 10 radiating object light and reference light having interference properties with each other, a space optical modulation element 31 modulating the object light 21 radiated from the light source 10, a condenser lens 32 converging the object light 21 modulated by the space optical modulation element 31, a hologram recording medium 33 which is arranged at the focal point of the opposite side of the light source 10 of the condenser lens 32 and records a hologram image generated by the interference of the object light 21 with the reference light 22, a non-linear optical element 34 which is arranged between the condenser lens 32 and the hologram recording medium 33 and in which the higher intensity of the object light 21 is, the more light transmissivity is reduced, and an optical element 35 guiding the reference light 22 radiated from the light source 10 to the hologram recording medium 33. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
