| Original document(24 pages) 中文版 |
To provide an optical recording medium having a plurality of information layers in which the information layer at the front side has high light transmittance and satisfactory recording and reproduction can be achieved in any information layer. The optical recording medium (D) includes at least two information layers. At least one information layer other than the information layer at the deepest position with respect to the light incident surface includes a semi-transmissive recording film, a semi-transmissive reflective film, a first optical adjustment film, and a second optical adjustment film. When denoting n1, n2 as the refractive indexes of the first, second optical adjustment film for a specified wavelength of light, respectively, d1 as the thickness of the first optical adjustment film, and d2 as the thickness of the second optical adjustment film, 2.5<n1<4.0 and 1.5<n2<2.5, and 10 nm<=d1<=20 nm and 30 nm<=d2<=50 nm are satisfied. |
Application Number
申请号 |
200610100323 |
Application Date
申请日 |
2006.06.30 |
| Title 名称 |
Optical storage medium |
Publication Number
公开号 |
1941123 |
Publication Date
公开日 |
2007.04.04 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G11B7/24;G11B7/257 |
Applicant(s) Name
申请人 |
Victor Company of Japan Ltd A. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
chenyang dun |
| More information 更 多 信 息 |
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