| 摘要 |
PROBLEM TO BE SOLVED: To provide a hologram recording device which prevents degradation in quality of signal light and performs optical recording with accuracy. SOLUTION: The hologram recording device includes: a spatial light modulator which modulates signal light on the basis of data to be recorded; a Fourier transform lens which is disposed in an optical path of signal light modulated by the spatial light modulator; a band pass filter part 28 including a light shielding member 200 disposed in a position for intercepting at least a DC component 300A on a Fourier plane of the signal light transmitted through the Fourier transform lens, a support 400 disposed on the outside of the Fourier plane, and a connection part 500 for connecting the light shielding member 200 and the support 400; and a means which irradiates a hologram recording medium with the signal light transmitted through the bandpass filter part 28, and a reference light. Interference fringes formed by the signal light and the reference light are recorded on the hologram recording medium. COPYRIGHT: (C)2009,JPO&INPIT
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