Invention Grant
- Patent Title: Apparatus and method for testing mechanical endurance of surface of optical disc, the optical disc of same kind as the tested optical disc
- Patent Title (中): 用于测试光盘表面的机械耐久性的装置和方法,与测试光盘相同类型的光盘
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Application No.: US11520629Application Date: 2006-09-14
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Publication No.: US07864643B2Publication Date: 2011-01-04
- Inventor: Hun Seo , Jin Hong Kim , Seung Yoon Lee , Jin Yong Kim
- Applicant: Hun Seo , Jin Hong Kim , Seung Yoon Lee , Jin Yong Kim
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2003-0064034 20030915
- Main IPC: G11B20/18
- IPC: G11B20/18

Abstract:
An apparatus and method for testing mechanical endurance of a surface of an optical disc is disclosed, which includes a rotating plate on which the optical disc is fixed to generate scratch thereon, and rotating the fixed optical disc; and a plurality of abrasion wheels disposed in perpendicular to the rotating plate, and being in contact with the surface of the optical disc, to generate the scratch on the surface of the optical disc, wherein, the scratches generate when the optical disc rotates a predetermined turn, e.g. below ten turns for applying a predetermined load generated from the abrasion wheel on the optical disc.
Public/Granted literature
Information query
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