发明申请
- 专利标题: HOLOGRAPHIC DISK WITH OPTICAL-NOTCH-FILTER LABEL
- 专利标题(中): 带光学滤波器标签的全息磁盘
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申请号: US12028009申请日: 2008-02-07
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公开(公告)号: US20090201782A1公开(公告)日: 2009-08-13
- 发明人: Daniel J. Winarski , Allen K. Bates , Nils Haustein , Craig A. Klein
- 申请人: Daniel J. Winarski , Allen K. Bates , Nils Haustein , Craig A. Klein
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
A holographic disk, including: a holographic recording layer and a servo-tracking layer, the holographic recording layer separated from the servo-tracking layer by a dichroic mirror that prevents a data I/O laser from accessing the servo-tracking layer while allowing a servo-tracking laser to access embedded servo tracks; a transparent cover layer including at least one layer of optical notch filter that forms a label, the optical notch filter blocking light at a wavelength different from the data I/O laser and the servo-tracking laser; where the label is a color label including at least one of numbers, letters, descriptive figures, pictures, and barcodes.
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