| US 7,558,187 B2 | ||
| Apparatus and method of initializing phase-change optical disk | ||
| Woo Seok Cheong, Daejeon (Korea, Republic of); Yong Goo Yoo, Daejeon (Korea, Republic of); Ho Jun Ryu, Daejeon (Korea, Republic of); Eun Kyoung Kim, Daejeon (Korea, Republic of); and Mun Cheol Paek, Daejeon (Korea, Republic of) | ||
| Assigned to Electronics and Telecommunications Research Institute, Daejeon (Korea, Republic of) | ||
| Filed on Dec. 08, 2005, as Appl. No. 11/299,067. | ||
| Claims priority of application No. 10-2004-0103666 (KR), filed on Dec. 09, 2004. | ||
| Prior Publication US 2006/0087922 A1, Apr. 27, 2006 | ||
| Int. Cl. G11B 7/26 (2006.01); G11B 7/00 (2006.01) | ||
| U.S. Cl. 369—284 [369/100] | 19 Claims |
| 1. An apparatus for initializing a phase-change optical disk, comprising:
a UV lamp emitting a UV beam to an optical disk having a phase-change medium as a recording layer for a predetermined time
to initialize the recording layer; and
a controller supplying a power source to the UV lamp;
wherein the UV lamp comprises a UV lamp assembly having a plurality of lamps with a circular ring shape, wherein a diameter
of the plurality of circular ring shaped lamps becomes larger as the lamp goes from a center to a periphery of a chamber supporting
the UV lamp and a distance between the circular ring shaped lamps is maintained by a predetermined interval.
|