发明申请
- 专利标题: INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS, OPTICAL INFORMATION RECORDING AND REPRODUCING METHOD AND MANUFACTURING METHOD OF INFORMATION RECORDING MEDIUM
- 专利标题(中): 信息记录介质,光信息记录和再现装置,光信息记录和再现方法以及信息记录介质的制造方法
-
申请号: US13384891申请日: 2010-07-20
-
公开(公告)号: US20120113772A1公开(公告)日: 2012-05-10
- 发明人: Teruhiro Shiono , Noboru Yamada
- 申请人: Teruhiro Shiono , Noboru Yamada
- 优先权: JP2009-170141 20090721; JP2009-181842 20090804
- 国际申请: PCT/JP2010/004649 WO 20100720
- 主分类号: G11B13/04
- IPC分类号: G11B13/04 ; G11B7/1374 ; B05D5/06 ; G11B7/26
摘要:
To provide an information recording medium which is capable of reducing damage to a recording layer while improving environmental resistance of the recording layer and which enables information to be recorded or reproduced at a high density and a high sensitivity, an optical information recording and reproducing apparatus, an optical information recording and reproducing method, and a manufacturing method of an information recording medium. An information recording medium (24) includes: a substrate (1); first to mth (where m is an integer equal to or greater than 1) recording layers (2) respectively provided on an incident side of recording light or reproducing light with respect to the substrate (1) in order of distance closer to the incident side; and first to mth (where m is an integer equal to or greater than 1) negative refractive index layers (3) respectively provided on the incident side of the recording light or the reproducing light with respect to the mth recording layer (2) in order of distance closer to the incident side, wherein an ith (1≦i≦m) recording layer (2) and an ith negative refractive index layer (3) are alternately provided on the substrate (1), and the first to mth negative refractive index layers (3) effectively have a negative refractive index at a wavelength of the recording light or the reproducing light.
信息查询
IPC分类: