G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 3/56 (2006.01) G01N 3/42 (2006.01) G01N 3/00 (2006.01)
Patent
CA 2483139
An apparatus and method for testing mechanical endurance of a surface of an optical disc (30) are 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), disposed at a perpendicular to the rotating plate (20), for contacting the optical disc (30) and generating the scratch, the scratch being generated when the optical disc (30) rotates under 5 turns for the abrasion wheels (10) apply a predetermined load on the optical disc (30).
L'invention concerne un appareil et un proc~d~ permettant de tester l'endurance m~canique d'une surface d'un disque optique (30). L'appareil comprend une plaque entra¹n~e en rotation (20) sur laquelle un disque optique ~ rayer est charg~, en vue de la rotation du disque optique charg~ (30), et une pluralit~ de roues abrasives (10), dispos~es perpendiculairement ~ la plaque entra¹n~e en rotation (20) de manire ~ venir en contact avec le disque optique (30) et ~ provoquer la rayure, cette rayure ~tant produite lorsque le disque optique (30) tourne moins de 5 tours afin que les roues abrasives (10) appliquent une charge pr~d~termin~e sur le disque optique (30).
Jeong Tae Hee
Kim Jin Hong
Kwak Keum Cheol
Lee Chang Ho
Seo Hun
Lg Electronics Inc.
Moffat & Co.
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