Exposure apparatus of an optical disk master, method of exposing an optical disk master, and wavefront fluctuation correction mechanism
    2.
    发明授权
    Exposure apparatus of an optical disk master, method of exposing an optical disk master, and wavefront fluctuation correction mechanism 失效
    光盘主机的曝光装置,曝光光盘主机的方法以及波前波动校正机构

    公开(公告)号:US07236434B2

    公开(公告)日:2007-06-26

    申请号:US10975605

    申请日:2004-10-28

    IPC分类号: G11B7/26 G11B7/135

    摘要: Apparatus and method for exposing an optical disk master having a laser source, a deflector for deflecting a recording laser beam based on the laser beam of the laser source and an objective lens for focusing the recording laser beam on an optical disk master, including a liquid crystal plate provided between the laser source and the deflector, a parallel flat plate provided between the deflector and the objective lens, a photodetector that detects reflected light from the parallel flat plate, and an adjusting device for adjusting a voltage applied to the liquid crystal plate based on information on wavefront fluctuation of the recording laser beam detected by the photodetector.

    摘要翻译: 用于曝光具有激光源的光盘主机的装置和方法,用于基于激光源的激光束偏转记录激光束的偏转器和用于将记录激光束聚焦在包括液体的光盘主机的物镜 设置在激光源和偏转器之间的晶体板,设置在偏转器和物镜之间的平行平板,检测来自平行平板的反射光的光电检测器,以及用于调节施加到液晶板的电压的调节装置 基于由光电检测器检测的记录激光束的波前波动的信息。

    Method and apparatus for exposing optical disk master
    3.
    发明授权
    Method and apparatus for exposing optical disk master 失效
    曝光光盘主机的方法和装置

    公开(公告)号:US06894959B2

    公开(公告)日:2005-05-17

    申请号:US10227625

    申请日:2002-08-22

    摘要: A method for exposing an optical disk master includes rotating a substrate disk coated with a photoresist, focusing a beam on the photoresist for exposure through an objective lens, and exposing the photoresist so as to form tracks on the substrate disk in its circumferential direction. At this time, the beam is deflected at least temporarily by passing through a deflector. The beam is divided into a first beam and a second beam after passing through the deflector, and the first beam is focused on the photoresist. A difference between the current position and the target position of an optical path of the second beam is detected, and the deflection operation of the deflector is corrected based on the difference so that the optical path of the second beam is located at the target position. This method can improve the track pitch accuracy of an optical disk having a narrow track pitch.

    摘要翻译: 用于曝光光盘主机的方法包括旋转涂覆有光致抗蚀剂的基片,将光束聚焦在光致抗蚀剂上以通过物镜进行曝光,并使光致抗蚀剂曝光,以便在基片圆盘的圆周方向上形成轨迹。 此时,梁通过偏转器至少临时偏转。 光束在穿过偏转器之后被分成第一光束和第二光束,第一光束被聚焦在光致抗蚀剂上。 检测第二光束的光路的当前位置和目标位置之间的差异,并且基于差异校正偏转器的偏转操作,使得第二光束的光路位于目标位置。 该方法可以提高具有窄轨道间距的光盘的轨道间距精度。

    Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism
    5.
    发明授权
    Exposure apparatus of an optical disk master, method of exposing an optical disk master and pinhole mechanism 失效
    光盘主机的曝光装置,曝光光盘主机和针孔机构的方法

    公开(公告)号:US07272099B2

    公开(公告)日:2007-09-18

    申请号:US10187491

    申请日:2002-07-01

    IPC分类号: G11B7/00

    摘要: An exposure apparatus of an optical disk master having a laser source, a deflector for deflecting a recording laser beam obtained based on the laser beam of the laser source and an objective lens for focusing the recording laser beam on an optical disk master, has a lens system provided between the laser source and the deflector, which has a first lens for focusing the laser beam and a second lens for adjusting the focused laser beam to a desired beam diameter; and a pinhole placed at a practical focal position of the lens system.

    摘要翻译: 具有激光源的光盘主机的曝光装置,用于偏转基于激光源的激光束获得的记录激光束的偏转器和用于将记录激光束聚焦在光盘主机上的物镜具有透镜 设置在激光源和偏转器之间的系统,该偏转器具有用于聚焦激光束的第一透镜和用于将聚焦的激光束调整到所需光束直径的第二透镜; 以及放置在透镜系统的实际焦点位置处的针孔。

    Method for manufacturing optical disk master and method for manufacturing optical disk
    7.
    发明申请
    Method for manufacturing optical disk master and method for manufacturing optical disk 审中-公开
    光盘主机的制造方法及其制造方法

    公开(公告)号:US20050074701A1

    公开(公告)日:2005-04-07

    申请号:US10409487

    申请日:2003-04-08

    摘要: A method for manufacturing an optical disk master includes: forming a resist layer by the application of a chemically amplified resist; converting an information signal into a multipulse signal having a symmetrical shape; exposing the resist layer in accordance with the multipulse signal; heat-treating the resist layer; and developing the resist layer to form signal pits. The signal pits are exposed to the multipulse signal, which is obtained by dividing a pulse into symmetrical pulses, thereby adjusting the exposure area and achieving a desired pit shape.

    摘要翻译: 制造光盘主机的方法包括:通过施加化学放大抗蚀剂形成抗蚀剂层; 将信息信号转换成具有对称形状的多脉冲信号; 根据多脉冲信号曝光抗蚀剂层; 对抗蚀剂层进行热处理; 并开发抗蚀剂层以形成信号坑。 信号凹坑暴露于通过将脉冲分成对称脉冲而获得的多脉冲信号,从而调节曝光面积并获得期望的凹坑形状。

    OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING AND REPRODUCTION APPARATUS
    8.
    发明申请
    OPTICAL INFORMATION RECORDING MEDIUM AND RECORDING AND REPRODUCTION APPARATUS 审中-公开
    光信息记录介质和记录和再现装置

    公开(公告)号:US20100195474A1

    公开(公告)日:2010-08-05

    申请号:US12679727

    申请日:2009-07-27

    IPC分类号: G11B7/26 G11B7/135

    摘要: A disk-shaped optical information recording medium (115) includes a substrate (101), first to nth information layers (102-104) layered upon the substrate (where n is an integer of 3 or more), kth intermediate layers (105, 106) provided between a kth information layer and a (k+1)th information layer (where k=1, 2, and so on up to n−1), and a protective layer (107) provided upon the nth information layer. The fluctuation range of the thicknesses from the protective layer surface (107a) to each of the information layers (102-104) is no more than ±3 μm relative to the average value of the thicknesses within a range from a radius of 23 mm to 24 mm from the center of the optical information recording medium.

    摘要翻译: 盘形光学信息记录介质(115)包括基板(101),层叠在基板上的第一至第n信息层(102-104)(其中n为3以上的整数),第k中间层 106)设置在第k个信息层和第(k + 1)个信息层(其中k = 1,2等等,直到n-1)之间,以及设置在第n个信息层上的保护层(107)。 从保护层表面(107a)到每个信息层(102-104)的厚度的波动范围相对于在从23mm的半径到25mm的范围内的厚度的平均值不超过±3μm 距光信息记录介质的中心24mm。

    OPTICAL INFORMATION RECORDING MEDIUM
    9.
    发明申请
    OPTICAL INFORMATION RECORDING MEDIUM 有权
    光信息记录介质

    公开(公告)号:US20100110871A1

    公开(公告)日:2010-05-06

    申请号:US12531601

    申请日:2008-03-13

    IPC分类号: G11B3/70

    CPC分类号: G11B7/24038 G11B7/2403

    摘要: The recording/reproducing quality of a multilayer optical information recording medium deteriorate not only due to interference from other layers caused by light converging on other information layers but also due to stray light converging on the surface of a protective layer and stray light that does not converge on other information layers but rather returns to an optical head through the same optical path as the reproducing signal. The thickness composition of intermediate layers (106, 107, and 108) and the protective layer (109) in a four-layer optical information recording medium are set so as to eliminate the influence of interference caused by stray light from other layers reflected up to three times.

    摘要翻译: 多层光学信息记录介质的记录/再现质量不仅由于聚光在其他信息层上而引起的其它层的干扰而劣化,而且还由于会聚在保护层的表面上的杂散光和不会聚的杂散光 在其他信息层上,而是通过与再现信号相同的光路返回到光头。 设置四层光学信息记录介质中的中间层(106,107,108)和保护层(109)的厚度组成,以消除由反射到其它层的杂散光引起的干扰的影响 三次。

    Optical information recording medium
    10.
    发明授权
    Optical information recording medium 有权
    光信息记录介质

    公开(公告)号:US08302119B2

    公开(公告)日:2012-10-30

    申请号:US12531601

    申请日:2008-03-13

    IPC分类号: G11B7/26 G11B3/70

    CPC分类号: G11B7/24038 G11B7/2403

    摘要: The recording/reproducing quality of a multilayer optical information recording medium deteriorate not only due to interference from other layers caused by light converging on other information layers but also due to stray light converging on the surface of a protective layer and stray light that does not converge on other information layers but rather returns to an optical head through the same optical path as the reproducing signal. The thickness composition of intermediate layers (106, 107, and 108) and the protective layer (109) in a four-layer optical information recording medium are set so as to eliminate the influence of interference caused by stray light from other layers reflected up to three times.

    摘要翻译: 多层光学信息记录介质的记录/再现质量不仅由于聚光在其它信息层上而引起的其它层的干扰而劣化,而且还由于会聚在保护层的表面上的杂散光和不会聚的杂散光 在其他信息层上,而是通过与再现信号相同的光路返回到光头。 设置四层光学信息记录介质中的中间层(106,107,108)和保护层(109)的厚度组成,以消除由反射到其它层的杂散光引起的干扰的影响 三次。