| 摘要 |
<p>PCT No. PCT/EP89/01413 Sec. 371 Date Jun. 19, 1991 Sec. 102(e) Date Jun. 19, 1991 PCT Filed Nov. 21, 1989 PCT Pub. No. WO90/06576 PCT Pub. Date Jun. 14, 1990.An optical recording and/or reproducing apparatus includes a recording and/or scanning device fitted with a lens. A current of air which blows away dust that would otherwise impair the quality of reproduction can be directed over the lens by ribs on the underside of a turntable.</p> |
