| 摘要 |
<p>Optical discs (20) which are protected against scratches and scrapes and the transfer of foreign substances such as skin oils thereto and also stabilized and vibration damped so that information on the disc will not be lost as the disc is read by a laser pickup. Employed to these ends is an elastically deformable, readily removable ring (22) whith lips (26, 28) which blanket the outer edges of the ring's surfaces and a rim (30) which elastically engages the outer periphery (34) of the disc (20). The ring (22) is preferably fabricated from a material which, in addition to being stretchable, has vibration damping capabilities and the ability to absorb skin oils transferred to it from the fingers of a person handling the disc (20).</p> |
