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公开(公告)号:EP1406254B1
公开(公告)日:2010-03-10
申请号:EP03020816.9
申请日:2003-09-12
申请人: Ricoh Company, Ltd.
发明人: Deguchi, Hiroshi , Yuzurihara, Hajime , Hibino, Eiko , Miura, Hiroshi , Abe, Mikiko , Narumi, Shinya , Kibe, Takeshi , Yamada, Katsuyuki , Taniguchi, Satoshi
IPC分类号: G11B7/24
CPC分类号: G11B7/0062 , G11B7/24 , G11B7/243 , G11B7/252 , G11B7/2534 , G11B7/257 , G11B7/259 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
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公开(公告)号:EP1406254A3
公开(公告)日:2004-06-09
申请号:EP03020816.9
申请日:2003-09-12
申请人: Ricoh Company Ltd.
发明人: Deguchi, Hiroshi , Yuzurihara, Hajime , Hibino, Eiko , Miura, Hiroshi , Abe, Mikiko , Narumi, Shinya , Kibe, Takeshi , Yamada, Katsuyuki , Taniguchi, Satoshi
IPC分类号: G11B7/24
CPC分类号: G11B7/0062 , G11B7/24 , G11B7/243 , G11B7/252 , G11B7/2534 , G11B7/257 , G11B7/259 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要: An optical disc having a transition linear velocity of 8-11 m/s when irradiating continuous light with 11±1 mW and a wavelength of 660±10 nm using a pickup head with a numerical aperture (NA) of 0.65, and satisfying the following condition:ΔR = |Rb-Ra| ≤ 3% where Rb is a reflectance of an unrecorded area, and Ra is a reflectance of the top of an eye pattern after ten cycles of recording. In one recording mode therefor, the disc is rotated at a constant angular velocity so as to have a linear velocity of 3-4 m/s on an innermost track and a linear velocity of 8-9 m/s on an outermost track. In another mode, the disc is rotated at a constant angular velocity so as to have a linear velocity of 5-6 m/s on an innermost track and a linear velocity of 13-14 m/ s on an outermost track.
摘要翻译: 当使用数值孔径(NA)为0.65的拾取头照射11±1mW和660±10nm的波长的连续光时,转变线速度为8-11m / s并且满足以下条件的光盘 条件:ΔR= | Rb-Ra | ≤3%其中Rb是未记录区域的反射率,Ra是记录10个循环后眼图顶部的反射率。 在一个记录模式中,盘以恒定的角速度旋转,以便在最内圈的轨道上具有3-4m / s的线速度并且在最外轨道上具有8-9m / s的线速度。 在另一种模式中,光盘以恒定的角速度旋转,以便在最内轨道上具有5-6m / s的线速度,并且在最外轨道上具有13-14m / s的线速度。
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公开(公告)号:EP1406254A2
公开(公告)日:2004-04-07
申请号:EP03020816.9
申请日:2003-09-12
申请人: Ricoh Company Ltd.
发明人: Deguchi, Hiroshi , Yuzurihara, Hajime , Hibino, Eiko , Miura, Hiroshi , Abe, Mikiko , Narumi, Shinya , Kibe, Takeshi , Yamada, Katsuyuki , Taniguchi, Satoshi
IPC分类号: G11B7/24
CPC分类号: G11B7/0062 , G11B7/24 , G11B7/243 , G11B7/252 , G11B7/2534 , G11B7/257 , G11B7/259 , G11B2007/24314 , G11B2007/24316 , Y10T428/21
摘要: An optical disc having a transition linear velocity of 8-11 m/s when irradiating continuous light with 11±1 mW and a wavelength of 660±10 nm using a pickup head with a numerical aperture (NA) of 0.65, and satisfying the following condition: ΔR = |Rb-Ra| ≤ 3% where Rb is a reflectance of an unrecorded area, and Ra is a reflectance of the top of an eye pattern after ten cycles of recording. In one recording mode therefor, the disc is rotated at a constant angular velocity so as to have a linear velocity of 3-4 m/s on an innermost track and a linear velocity of 8-9 m/s on an outermost track. In another mode, the disc is rotated at a constant angular velocity so as to have a linear velocity of 5-6 m/s on an innermost track and a linear velocity of 13-14 m/ s on an outermost track.
摘要翻译: 当使用数值孔径(NA)为0.65的拾取头照射11 +/- 1mW和波长为660 +/- 10nm的连续光时,具有8-11m / s的过渡线速度的光盘, 并且满足以下条件:其中Rb是未记录区域的反射率,Ra是10次记录周期之后的眼图的顶部的反射率,其中,ΔDR=RbRaR≤3% DF>。 在一种记录模式中,盘以恒定的角速度旋转,以便在最内轨道上具有3-4m / s的线速度,在最外侧的轨道上具有8-9m / s的线速度。 在另一种模式中,盘以恒定的角速度旋转,以便在最内侧的轨道上具有5-6m / s的线速度,在最外侧轨道上具有13-14m / s的线速度。
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