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    • 10. 发明公开
    • 광 기록 디스크
    • 光学记录盘
    • KR1020060026882A
    • 2006-03-24
    • KR1020057024509
    • 2004-06-30
    • 티디케이가부시기가이샤
    • 기쿠카와다카시후쿠자와나루토시고바야시다츠히로
    • G11B7/257B41M5/26G11B7/241G11B7/252
    • G11B7/2433B82Y10/00G11B7/2403G11B7/24065G11B7/252G11B7/2534G11B7/2542G11B2007/24314G11B2007/24316G11B2007/25706G11B2007/25708G11B2007/2571G11B2007/25713G11B2007/25715G11B2007/25716G11B2007/25718
    • An optical recording disk wherein data composed of a recording mark sequence including recording marks and blank areas between adjacent recording marks can be recorded/reproduced event if the lengths of the recording marks and those of the bland areas are less than the resolution limit, the recording capacity can be consequently greatly increased, and the C/N ratio of the reproduced signal and the reproduction durability are improved. The optical disk is characterized in that it comprises a substrate (2), a reflective layer (3), a third dielectric layer (4), a light-absorbing layer (5), a second dielectric layer (6), a decomposition reaction layer (7) containing mainly a platinum oxide, a first dielectric layer (8), and a light- transmitting layer (9), in that the platinum oxide in the decomposition reaction layer (7) is decomposed into platinum and oxygen when a laser beam (20) is applied through the light-transmitting layer (9), a cavity is formed by the produced oxygen, platinum particles are precipitated in the cavity, and an a recording mark is thus made in the decomposition reaction layer (7).
    • 如果记录标记的长度和平淡区域的长度小于分辨率极限,则可以记录/再现事件,其中由包括记录标记的记录标记和相邻记录标记之间的空白区组成的数据可以被记录/再现 因此能够大大提高容量,并且提高再现信号的C / N比和再现耐久性。 该光盘的特征在于它包括一个基底(2),一个反射层(3),一个第三介电层(4),一个光吸收层(5),一个第二介电层(6) 主要含有氧化铂的层(7),第一介电层(8)和透光层(9),其中分解反应层(7)中的氧化铂在激光下分解为铂和氧 通过透光层(9)施加光束(20),通过产生的氧形成空腔,在空腔中沉淀铂颗粒,并在分解反应层(7)中形成记录标记。