发明名称 |
APPARATUS AND METHOD FOR TESTING MECHANICAL ENDURANCE OF A SURFACE OF AN OPTICAL DISC |
摘要 |
<p>An apparatus and for testing mechanical endurance of a surface of an optical disc (30) is disclosed. The apparatus includes a rotating plate (20), on which an optical disc (30) to be scratched is loaded, for rotating the loaded optical disc (30); and a plurality of abrasion wheels (10), for contacting the optical disc (30) and generating the scratch. The scratch is generated, when the optical disc (30) rotates a predetermined number of turns with the abrasion wheels (10) applying a predetermined load on the rotated optical disc (30). The apparatus enables a determination on whether the optical disc (30) has a predetermined endurance based on comparing a result from the scratch generated on the surface of the optical disc (30) with a predetermined reference value.</p> |
申请公布号 |
EP1608949(B9) |
申请公布日期 |
2009.04.15 |
申请号 |
EP20030816370 |
申请日期 |
2003.07.31 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
SEO, HUN;KIM, JIN HONG;LEE, CHANG HO;JEONG, TAE HEE;KWAK, KEUM CHEOL |
分类号 |
G01N3/56;G11B7/26;G01N3/00;G01N3/42 |
主分类号 |
G01N3/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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