| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve high recording density of an information recording medium without enlarging an optical information recording device. <P>SOLUTION: The optical information recording device is provided with a semiconductor laser 201 emitting irradiation light, a space light modulator 203 converting the irradiation light to information light having information, an objective lens 204 converging the information light and reference light to a holographic optical disk 205 which can record the information as hologram by an interference fringe generated by the interference between the information light and the reference light, relay lenses 301a, 301b transmitting the information light emitted from a space light modulator 204 to converging lens 204, and a transmission material 102 provided between the space light modulator 203 and the relay lens 301a, having refractive index which is larger than refractive index of air and smaller than refractive index of the relay lens 301a, and refracting the information light and transmits it. <P>COPYRIGHT: (C)2009,JPO&INPIT |
