发明授权
- 专利标题： Information recording layer of optical disc, optical disc and disc device
- 专利标题（中）： 信息记录层的光盘，光盘和光盘装置
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申请号： US11887373申请日： 2006-03-03
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公开(公告)号： US07911932B2公开(公告)日： 2011-03-22
- 发明人: Eiji Muramatsu , Kazuo Kuroda
- 申请人： Eiji Muramatsu , Kazuo Kuroda
- 申请人地址： JP Tokyo
- 专利权人： Pioneer Corporation
- 当前专利权人： Pioneer Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Foley & Lardner LLP
- 优先权： JP2005-102306 20050331
- 国际申请： PCT/JP2006/304160 WO 20060303
- 国际公布： WO2006/112177 WO 20061026
- 主分类号： G11B7/24
- IPC分类号： G11B7/24
摘要：
An optical disk includes a substrate covered with an information recording layer. The information recording layer includes a recording material and an exothermic material dispersed in the recording material. The exothermic material absorbs recording light for recording information, and then generates heat. An external dimension of the exothermic material is smaller than the diffraction limit of reading light for reading information. The recording material has absorptance of a wavelength of the recording light lower than that of the exothermic material. Information is recorded on the recording material as the light refraction index of the recording material changes due to heating.
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