| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recording apparatus capable of more enhancing optical characteristics. <P>SOLUTION: The apparatus is provided with: an object lens 7 for signal light to converge signal light S to a predetermined irradiation position; a lens holder 70 for signal light to hold the object lens 7 near a hologram recording medium (B); object lenses 10A, 10B for reference light to allow reference light R to propagate as inclined with respect to the signal light S and to converge to a predetermined irradiation position; and a lens holder 10 for reference light to hold the object lenses 10A, 10B near the hologram recording medium (B). Wherein, at least one of the lens holders 70, 10 for signal light and reference light, respectively, has a missing portion 70a as a partially removed portion so as not to block a beam propagating from the other lens holder to the predetermined irradiation position. <P>COPYRIGHT: (C)2007,JPO&INPIT |
