发明名称 Apparatus for optically writing/reading to or from optical or opto-magnetic storage media
摘要 The invention relates to an apparatus for optically writing/reading to or from optical or opto-magnetic storage media (15), in particular for storage disks (15) which in rotation are digitally coded and read out in data tracks, by means of focused light (5) which is focused from a light source (3) by a focusing lens (11) onto writing or reading locations of the storage medium (15) and is reflected from the said locations to an evaluation device (19), a plurality of light beams (5.1 to 5.10) being focused by the focusing lens (11) onto a corresponding number of parallel individual data tracks (25.2 to 25.9) of a data track group (25) and being reflected from the said tracks to the evaluation device (19). <IMAGE>
申请公布号 DE3829430(A1) 申请公布日期 1990.03.15
申请号 DE19883829430 申请日期 1988.08.31
申请人 PHILIPS PATENTVERWALTUNG GMBH, 2000 HAMBURG, DE 发明人 CRASEMANN, JAN HINRICH, DR., 2000 HAMBURG, DE;HEITMANN, HEINRICH, DR., 2090 WINSEN, DE
分类号 G11B7/09;G11B7/14;G11B11/105 主分类号 G11B7/09
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