| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recording device that can give an effect such as an increase in a reproduction rate. <P>SOLUTION: The hologram recording device irradiates a unit recording region T of a hologram recording medium B with recording light S modulated according to the information to be recorded and with reference light R at the same wavelength as the recording light, as well as varies and controls the incident angle of one of the recording light S and the reference light R at a prescribed angle increment α to carry out multiple recording of different holograms H20 to H24 in a page unit at each time of setting the incident angle to a plurality of prescribed angles θ20 to θ40. At least one reference angle 22 is set as the plurality of prescribed angles; and the device is equipped with an incident angle varying and controlling means which continuously varies the incident angle within a prescribed angle range Δθ including the reference angle θ22 upon varying and controlling the incident angle to align with the reference angle θ22, while the medium is continuously irradiated with the recording light S and the reference light R. <P>COPYRIGHT: (C)2007,JPO&INPIT |
