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    Method of manufacturing optical head
    2.
    发明授权
    Method of manufacturing optical head 有权
    制造光头的方法

    公开(公告)号：US07317675B2

    公开(公告)日：2008-01-08

    申请号：US10428564

    申请日：2003-05-02

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    IPC分类号： G11B7/00

    CPC分类号： G11B7/22 ,  G11B7/082 ,  G11B7/08582 ,  G11B7/123 ,  G11B7/1362 ,  G11B7/1372 ,  G11B11/1055

    摘要： An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired detection signal can be obtained through reflected light from a disk information recording medium and then the objective lens actuator is fixed. The relative position adjustment of the integrated unit is no longer required and it is no longer necessary preliminarily to provide a margin for adjusting the integrated unit. Thus, an optical head can be reduced in size and thickness.

    摘要翻译： 将光源和发光二极管组合成一个部件的集成单元固定到光学台。 然后，相对于光台执行物镜致动器的相对位置调整，从而可以通过来自盘信息记录介质的反射光获得期望的检测信号，然后固定物镜致动器。 集成单元的相对位置调整不再需要，不再需要提供调整一体化单元的余量。 因此，可以减小光学头的尺寸和厚度。

    Optical head
    3.
    发明授权
    Optical head 有权
    光头

    公开(公告)号：US07317672B2

    公开(公告)日：2008-01-08

    申请号：US10526646

    申请日：2003-09-05

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    IPC分类号： G11B7/12

    CPC分类号： G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/0956

    摘要： An optical head includes the following: a light beam separator (35) that includes substantial interference regions for light that is reflected from an information recording medium and travels in a straight path and ±first-order diffracted light produced by information tracks of the information recording medium, and diffracts each of plural light beams in regions (32a, 32b) of the substantial interference regions, where the amount of light is changed by a change in the relative angle between the information recording medium and the objective lens and by a shift of the objective lens in the radial direction of the information recording medium; a light-receiving element (36a, 36b) for receiving the light beam that is reflected by the information recording medium and separated by the light beam separator (35); and an arithmetic circuit that corrects a value of an electrical signal detected by the light-receiving element (36a, 36b) in accordance with a radial position signal corresponding to the amount of shift of the objective lens in the radial direction of the information recording medium, and detects the relative angle between the information recoding medium and the objective lens.

    摘要翻译： 光头包括：光束分离器（35），其包括从信息记录介质反射并在直线路径中行进的光的实质干涉区域和由信息记录信息轨道产生的±一级衍射光 在基本干涉区域的区域（32 a，32b）中的多个光束中的每一个被介质衍射，其中光量由于信息记录介质和物镜之间的相对角度的变化而改变，并且由 物镜在信息记录介质的径向上移动; 用于接收被信息记录介质反射并由光束分离器（35）分离的光束的光接收元件（36a，36b）; 以及算术电路，其根据与所述物镜在所述信息的径向方向上的偏移量相对应的径向位置信号来校正由所述受光元件（36a，36b）检测到的电信号的值 并且检测信息记录介质和物镜之间的相对角度。

    Method of manufacturing optical head
    6.
    发明授权
    Method of manufacturing optical head 有权
    制造光头的方法

    公开(公告)号：US07209411B1

    公开(公告)日：2007-04-24

    申请号：US09491100

    申请日：2000-01-25

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    IPC分类号： G11B7/00

    CPC分类号： G11B7/22 ,  G11B7/082 ,  G11B7/08582 ,  G11B7/123 ,  G11B7/1362 ,  G11B7/1372 ,  G11B11/1055

    摘要： An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired detection signal can be obtained through reflected light from a disk information recording medium and then the objective lens actuator is fixed. The relative position adjustment of the integrated unit is no longer required and it is no longer necessary preliminarily to provide a margin for adjusting the integrated unit. Thus, an optical head can be reduced in size and thickness.

    摘要翻译： 将光源和发光二极管组合成一个部件的集成单元固定到光学台。 然后，相对于光台执行物镜致动器的相对位置调整，从而可以通过来自盘信息记录介质的反射光获得期望的检测信号，然后固定物镜致动器。 集成单元的相对位置调整不再需要，不再需要提供调整一体化单元的余量。 因此，可以减小光学头的尺寸和厚度。

    Optical head and method of manufacturing the same
    7.
    发明授权
    Optical head and method of manufacturing the same 有权
    光头及其制造方法

    公开(公告)号：US07036134B2

    公开(公告)日：2006-04-25

    申请号：US10965115

    申请日：2004-10-14

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

    IPC分类号： G11B7/00

    CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

    摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.

    摘要翻译： 反射镜和光学台被放置在设置有用于保持反射镜的反射镜保持部分的外部夹具上，然后将反射镜和光学台架固定并固定，从而获得光学头。 在光学平台上不再需要用于反射镜的粘合参考平面，从而减小了光学平台的尺寸和成本。 安装精度高，稳定。 此外，反射镜在其两个相对的侧面的大致中心附近被粘接固定，因此由于粘合剂的膨胀或收缩导致的反射镜的取向的变化减小，因此实现了高度可靠的光学 头部环境稳定性好。

    Optical head
    8.
    发明申请
    Optical head 有权
    光头

    公开(公告)号：US20060007838A1

    公开(公告)日：2006-01-12

    申请号：US10526646

    申请日：2003-09-05

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

    IPC分类号： G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/0956

    摘要： An optical head includes the following: a light beam separator (35) that includes substantial interference regions for light that is reflected from an information recording medium and travels in a straight path and ±first-order diffracted light produced by information tracks of the information recording medium, and diffracts each of plural light beams in regions (32a, 32b) of the substantial interference regions, where the amount of light is changed by a change in the relative angle between the information recording medium and the objective lens and by a shift of the objective lens in the radial direction of the information recording medium; a light-receiving element (36a, 36b) for receiving the light beam that is reflected by the information recording medium and separated by the light beam separator (35); and an arithmetic circuit that corrects a value of an electrical signal detected by the light-receiving element (36a, 36b) in accordance with a radial position signal corresponding to the amount of shift of the objective lens in the radial direction of the information recording medium, and detects the relative angle between the information recoding medium and the objective lens.

    摘要翻译： 光头包括：光束分离器（35），其包括从信息记录介质反射并在直线路径中行进的光的实质干涉区域和由信息记录信息轨道产生的±一级衍射光 在基本干涉区域的区域（32 a，32b）中的多个光束中的每一个被介质衍射，其中光量由于信息记录介质和物镜之间的相对角度的变化而改变，并且由 物镜在信息记录介质的径向上移动; 用于接收被信息记录介质反射并由光束分离器（35）分离的光束的光接收元件（36a，36b）; 以及算术电路，其根据与所述物镜在所述信息的径向方向上的偏移量相对应的径向位置信号来校正由所述受光元件（36a，36b）检测到的电信号的值 并且检测信息记录介质和物镜之间的相对角度。

    Optical head and method of manufacturing the same
    9.
    发明申请
    Optical head and method of manufacturing the same 有权
    光头及其制造方法

    公开(公告)号：US20050047319A1

    公开(公告)日：2005-03-03

    申请号：US10965115

    申请日：2004-10-14

    申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

    发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

    IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G11B7/00

    CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

    摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.

    摘要翻译： 反射镜和光学台被放置在设置有用于保持反射镜的反射镜保持部分的外部夹具上，然后将反射镜和光学台架固定并固定，从而获得光学头。 在光学平台上不再需要用于反射镜的粘合参考平面，从而减小了光学平台的尺寸和成本。 安装精度高，稳定。 此外，反射镜在其两个相对的侧面的大致中心附近被粘接固定，因此由于粘合剂的膨胀或收缩导致的反射镜的取向的变化减小，因此实现了高度可靠的光学 头部环境稳定性好。

    Optical head and optical head feeder
    10.
    发明授权
    Optical head and optical head feeder 有权
    光头和光头进纸器

    公开(公告)号：US06831882B1

    公开(公告)日：2004-12-14

    申请号：US09869627

    申请日：2001-06-29

    申请人： Makoto Takashima ,  Hideki Aikoh ,  Hideki Nakata ,  Hironori Tomita ,  Tadashi Kuroda ,  Toru Tanaka

    发明人： Makoto Takashima ,  Hideki Aikoh ,  Hideki Nakata ,  Hironori Tomita ,  Tadashi Kuroda ,  Toru Tanaka

    IPC分类号： G11B700

    CPC分类号： G11B33/1406 ,  G11B7/08582 ,  G11B7/12 ,  G11B7/123 ,  G11B11/10545 ,  G11B11/10552 ,  G11B11/10571

    摘要： An optical head including a light source for emitting luminous energy recordable on a recording medium, a heat radiating section, in contact with the light source, for radiating heat which accompanies the light emission thereof, and a resin-made bench for mounting and fixing the aforementioned elements, or an optical head having a light source for generating luminous energy required for recording on a disk-shaped information recording medium or reproducing information recorded on the disk-shaped information recording medium; a radiator plate, in contact with the light source either directly or indirectly, for guiding heat which accompanies the emission of light by the light source; an objective lens for focusing light on the disk-shaped information recording medium; an objective lens drive unit for driving the objective lens in the focal and radial direction of the medium; a light receiving element for receiving light reflected from the medium; a sheet-shaped flexible circuit for feeding power to the light source and the light receiving element and communicating signals from the light receiving element; and an optical bench holding at least the light source, the objective lens drive unit, the radiator plate and the light receiving element, in which the radiator plate is brought into contact with a heat transfer section provided in the flexible circuit and, by causing the flexible circuit to guide heat from the radiator plate, heat generated by the light source is radiated through the flexible circuit and the radiator plate.

    摘要翻译： 一种光学头，包括用于发射可记录在记录介质上的光能的光源，与光源接触的散热部分，用于散发伴随其发光的热量;以及树脂制台架，用于安装和固定 或者具有用于产生记录在盘形信息记录介质上或者再现记录在盘形信息记录介质上的信息所需的光能的光源的光学头; 直接或间接地与光源接触的用于引导伴随光源发光的热的散热板; 用于将光聚焦在盘状信息记录介质上的物镜; 用于在所述介质的焦点和径向方向上驱动所述物镜的物镜驱动单元; 用于接收从介质反射的光的光接收元件; 用于向光源和光接收元件供电以及来自光接收元件的信号的片状柔性电路; 以及至少保持光源，物镜驱动单元，散热板和受光元件，其中散热板与设置在柔性电路中的传热部分接触，并且通过使 用于引导散热板的热量的柔性电路，由光源产生的热量通过柔性电路和散热板辐射。