| 摘要 |
PROBLEM TO BE SOLVED: To improve productivity in hologram manufacturing.SOLUTION: A hologram manufacturing method includes: causing a first master which emits diffracted light in an angular direction of ω1 when irradiated with light in an angular direction of &thetas;1, and a hologram recording medium to face each other and irradiating the first master and the hologram recording medium with light in the angular direction of &thetas;1 to record first information onto the hologram recording medium; and causing a second master and the hologram recording medium to face each other and irradiating the second master and the hologram recording medium with light in an angular direction of &thetas;2 to record second information onto the hologram recording medium. At least one of the first master and the second master is an angle-selective holographic master, and &thetas;2 is selected from angles other than &thetas;1 and ω1. |
