| 摘要 |
<p>A holographic recording apparatus includes first (11, 12, 13a, 113a) and second (11, 12, 13b, 113b) light sources for respectively generating first and second light beams. A mask (15, 208) is located in front of a hologram recording material and has an aperture. Interference fringes are recorded in a hologram cell on the hologram recording material corresponding to the aperture. A movement mechanism (17-20, 209, 217) supports the hologram recording material masked by the mask and relatively moves the hologram recording material with respect to the mask in predetermined directions so that an interference pattern is formed in an area on the hologram recording material. A spatial frequency changing mechanism (16a, 16b) changes incident angles of the first and second light beams with respect to the mask. <IMAGE></p> |
