发明授权
US08576407B2 Contactless optical glide head using at least two concurrent interference signals and a multi-channel light detector for detecting disk asperities
失效
使用至少两个并发干涉信号的非接触式光滑头和用于检测磁盘粗糙度的多通道光检测器
- 专利标题： Contactless optical glide head using at least two concurrent interference signals and a multi-channel light detector for detecting disk asperities
- 专利标题（中）： 使用至少两个并发干涉信号的非接触式光滑头和用于检测磁盘粗糙度的多通道光检测器
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申请号： US12645205申请日： 2009-12-22
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公开(公告)号： US08576407B2公开(公告)日： 2013-11-05
- 发明人: Karl Flechsig , Gurinder Singh , Timothy Strand
- 申请人： Karl Flechsig , Gurinder Singh , Timothy Strand
- 申请人地址： NL Amsterdam
- 专利权人： HGST Netherlands B.V.
- 当前专利权人： HGST Netherlands B.V.
- 当前专利权人地址： NL Amsterdam
- 主分类号： G01B11/02
- IPC分类号： G01B11/02
摘要：
A device for detecting disk asperities. The device includes an optical glide head. The glide head is not required to physically contact a disk for detection of the disk asperities. The optical glide head includes a waveguide configured to transmit light onto the disk and receive reflected light from the disk.
公开/授权文献
- US20110149299A1 CONTACTLESS OPTICAL GLIDE HEAD 公开/授权日：2011-06-23
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