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    • 2. 发明授权
    • Optical disk device, method of controlling optical head, and control device for optical head
    • 光盘装置,光头控制方法及光头控制装置
    • US08014240B2
    • 2011-09-06
    • US12294510
    • 2007-03-29
    • Kenji KondoTakashi KishimotoKenji Fujiune
    • Kenji KondoTakashi KishimotoKenji Fujiune
    • G11B7/00
    • G11B7/0906G11B7/0908G11B7/0941G11B2007/0013
    • An optical disk device includes a DPDTE signal generating section that detects misalignment between a light spot and a mark or a pit, an FE signal generating section, an optical crosstalk correcting section which corrects a signal output by the FE signal generating section using the DPDTE signal generating section, and a focus control section which controls an actuator so that a light beam converges on an information layer. The DPDTE signal generating section detects the misalignment on the basis of phase information obtained from signals received from predetermined light receiving areas. The optical crosstalk correcting section performs a correcting operation of removing a signal component from predetermined receiving areas of a detector which component is used for a DPDTE signal, the signal component being contained in the signals from the predetermined light receiving areas of the detector which signals are used by the FE signal generating section.
    • 光盘装置包括检测光点与标记或凹坑之间的未对准的DPDTE信号产生部分,FE信号产生部分,光学串扰校正部分,其利用DPDTE信号校正由FE信号产生部分输出的信号 以及控制致动器以使光束会聚在信息层上的聚焦控制部。 DPDTE信号产生部分根据从预定的光接收区域接收的信号获得的相位信息来检测未对准。 光串扰校正部分执行从DPDTE信号中使用该组件的检测器的预定接收区域中去除信号分量的校正操作,该信号分量包含在来自检测器的预定光接收区域的信号中,该信号是 由FE信号产生部使用。
    • 9. 发明授权
    • Line illuminating device and image-scanning device incorporating line-illuminating device
    • 线路照明装置和装有线路照明装置的图像扫描装置
    • US07284891B2
    • 2007-10-23
    • US10532149
    • 2003-10-09
    • Tomihisa SaitoTakashi KishimotoHidemitsu TakeuchiYukihiro Kato
    • Tomihisa SaitoTakashi KishimotoHidemitsu TakeuchiYukihiro Kato
    • F21V7/04
    • H04N1/031G03B27/54
    • A line-illuminating device which is resistant to shrinkage problems caused by repetition of heating and cooling includes a white casing made of polycarbonate or the like, a light guide made of an acrylic resin or the like and accommodated in the casing such that the light-emitting surface thereof is exposed, and light-emitting elements (for example, light-emitting diodes) as a light source provided on both ends of the casing so as to abut against the end surfaces of the light guide without a gap. The casing is divided into two portions in the longitudinal direction, and a gap is formed between the two divided portions. With this gap, even if the light guide shrinks due to repetition of heating and cooling, the divided portions can effectively shrink together with the light guide via the gap, and the abutting state between the end surface of the light guide and the light-emitting element can be maintained.
    • 耐受重复加热和冷却所引起的收缩问题的线路照明装置包括由聚碳酸酯等制成的白色壳体,由丙烯酸树脂等制成并且容纳在壳体中的导光体, 露出发光面,将作为光源的发光元件(例如发光二极管)设置在壳体的两端,以便与导光体的端面邻接而没有间隙。 壳体沿长度方向分为两部分,并且在两个分割部分之间形成间隙。 由于该间隙,即使由于重复加热而导致光导收缩,所以分割部分能够经由间隙与导光体一起有效地收缩,并且导光体的端面与发光的接触状态 元素可以维护。