发明授权
- 专利标题： Hologram recording apparatus and method therefor
- 专利标题（中）： 全息记录装置及其方法
-
申请号： US09631646申请日： 2000-08-02
-
公开(公告)号： US06535472B1公开(公告)日： 2003-03-18
- 发明人: Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Hideki Hatano
- 申请人： Myeongkyu Lee , Kenji Kitamura , Yasunori Furukawa , Shunji Takekawa , Hideki Hatano
- 优先权： JP11-244296 19990831
- 主分类号： G11B700
- IPC分类号： G11B700
摘要：
A hologram recording apparatus is capable of directing interferable signal light and reference light into a hologram recording medium to record an information signal carried by the signal light. The hologram recording medium is sensitive to a first light at a first wavelength in an ultraviolet or short-wavelength visible light band to develop light induced absorption. The apparatus includes a light source for irradiating the hologram recording medium with the first light, and a laser light source for irradiating the hologram recording medium with signal light and reference light at a second wavelength longer than the first wavelength after the first light is irradiated.