发明授权
- 专利标题： Optical memory element
- 专利标题（中）： 光学存储元件
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申请号： US934718申请日： 1986-11-25
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公开(公告)号： US4818648A公开(公告)日： 1989-04-04
- 发明人: Kenji Ohta , Akira Takahashi , Tetsuya Inui , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
- 申请人： Kenji Ohta , Akira Takahashi , Tetsuya Inui , Hiroyuki Katayama , Junji Hirokane , Yoshiteru Murakami
- 申请人地址： JPX Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX60-270361 19851127
- 主分类号： G11B11/10
- IPC分类号： G11B11/10 ; C03C3/076 ; C03C3/083 ; C03C3/091 ; C03C4/00 ; C03C15/00 ; G11B7/24 ; G11B7/253 ; G11B7/26 ; G11B11/105 ; G03C5/16 ; G01D9/00 ; G11B3/70
摘要：
An optical memory element comprising a substrate with grooves functioning as grooves for, for example, controlling the position of a laser beam, wherein said substrate is composed of a glass containing SiO.sub.2 in the range of 51 to 71% by weight, Na.sub.2 O in the range of 10 to 18% by weight, K.sub.2 O in the range of 0 to 8% by weight, Al.sub.2 O.sub.3 in the range of 12 to 22% by weight, and B.sub.2 O.sub.3 in the range of 0 to 9% by weight.
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