| 发明名称 |
Diffraction grating, light source unit applying the same therein, and optical head device employing the same |
| 摘要 |
A polarization diffraction grating includes two media having different orientation states arranged alternately and cyclically, wherein each boundary between the media forms an oblique rectangular shape.
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| 申请公布号 |
US2004013076(A1) |
申请公布日期 |
2004.01.22 |
| 申请号 |
US20030414047 |
申请日期 |
2003.04.16 |
| 申请人 |
FUNATO HIROYOSHI;KITABAYASHI JUNICHI;OOHCHIDA SHIGERU;SUZUDO TSUYOSHI |
发明人 |
FUNATO HIROYOSHI;KITABAYASHI JUNICHI;OOHCHIDA SHIGERU;SUZUDO TSUYOSHI |
| 分类号 |
G11B7/00;G11B7/12;G11B7/125;G11B7/135;(IPC1-7):G11B7/135 |
主分类号 |
G11B7/00 |
| 代理机构 |
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代理人 |
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