公开(公告)号：US4583213A

公开(公告)日：1986-04-15

申请号：US628198

申请日：1984-07-06

申请人： Allen T. Bracken ,  Harold A. Lunka ,  William J. Benker ,  Howard A. Snyder ,  Gary W. Collins

发明人： Allen T. Bracken ,  Harold A. Lunka ,  William J. Benker ,  Howard A. Snyder ,  Gary W. Collins

IPC分类号： G11B33/08 ,  G11B33/14 ,  G11B25/04 ,  G11B23/02

CPC分类号： G11B33/1446 ,  G11B33/08

摘要： An air shroud is disclosed for reducing vibration of the disk storage medium and controlling contamination in the environment above the disk in an optical disk data recording system. The shroud is placed over the rotating disk and pressurized air is forced into the center of the air space between the shroud and the disk where it moves from the center to the outside edge in a laminar flow. The shroud includes a circular plate with a slot for allowing the laser read/write beam to shine through the shroud and contact the surface of the disk for reading and writing data on the disk. An air duct is mounted around a center hole of the circular plate to distribute the pressurized air into the air space and a flange is mounted on the outer edge of the circular plate to reduce turbulence in the air flowing across the disk.

摘要翻译： 公开了一种用于减少盘存储介质的振动并控制光盘数据记录系统中盘上环境中的污染的空气罩。 将护罩放置在旋转盘上方，并且加压空气被迫进入护罩和盘之间的空间中心，其中它以层流从中心移动到外边缘。 护罩包括带有槽的圆形板，用于允许激光读/写光束穿过护罩并与盘的表面接触以便在盘上读取和写入数据。 在圆形板的中心孔周围安装有空气管道，以将加压空气分配到空气空间中，并且法兰安装在圆形板的外边缘上以减少流过盘的空气中的湍流。