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。

公开(公告)号：US20090201789A1

公开(公告)日：2009-08-13

申请号：US12088555

申请日：2006-10-02

申请人： Hideki Nakata ,  Hideki Aikoh

发明人： Hideki Nakata ,  Hideki Aikoh

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/1362 ,  G11B2007/0006

摘要： An optical head device has at least one upward-reflecting mirror, objective lenses, an objective lens actuator, and a moving mechanism. The upward-reflecting mirror receives an incident luminous flux having a wavelength emitted from a semiconductor, and changes its direction. The objective lenses having mutually different numerical apertures condenses the luminous flux whose direction has been changed by the upward-reflecting mirror to radiate a condensed luminous flux onto an information recording medium. The objective lens actuator moves the objective lenses in the focus direction of the information recording medium so that the luminous flux incident on the information recording medium becomes in a focused state. The moving mechanism moves the upward-reflecting mirror so that the luminous flux is incident on the information recording medium via any one of the objective lenses.

摘要翻译： 光学头装置具有至少一个向上反射镜，物镜，物镜致动器和移动机构。 向上反射镜接收从半导体发射的波长的入射光束，并改变其方向。 具有相互不同的数值孔径的物镜将通过向上反射镜改变方向的光通量聚集在信息记录介质上，以将会聚的光通量照射到信息记录介质上。 物镜致动器在信息记录介质的聚焦方向上移动物镜，使得入射到信息记录介质上的光束成为聚焦状态。 移动机构使向上反射镜移动，使得光通量经由任何一个物镜入射到信息记录介质上。

公开(公告)号：US20090040909A1

公开(公告)日：2009-02-12

申请号：US11918780

申请日：2006-04-20

申请人： Joji Anzai ,  Hideki Aikoh ,  Akihiro Arai ,  Hideki Nakata ,  Fumitomo Yamasaki ,  Yoshiaki Komma

发明人： Joji Anzai ,  Hideki Aikoh ,  Akihiro Arai ,  Hideki Nakata ,  Fumitomo Yamasaki ,  Yoshiaki Komma

IPC分类号： G11B7/135

CPC分类号： G11B7/1275 ,  G11B7/1356 ,  G11B2007/0006

摘要： An optical head device is provided with a light source 1 for emitting a plurality of lights having different wavelengths, an objective lens 31 for focusing a light spot on an optical disc 21, an objective lens 32 for focusing light spots on optical discs 22 to 24, and a prism 53 for splitting a laser light having a wavelength of 405 nm from the light source 1 into a transmitting light and a reflected light, introducing the reflected light to the objective lens 31 and the transmitting light to the objective lens 32, and introducing laser lights having wavelengths of 660 nm, 780 nm from the light source 1 to the objective lens 32.

摘要翻译： 光头装置设置有用于发射具有不同波长的多个光的光源1，用于将光点聚焦在光盘21上的物镜31，用于将光点聚焦在光盘22至24上的物镜32 以及棱镜53，用于将来自光源1的具有405nm波长的激光分解成透射光和反射光，将反射光引导到物镜31和透射光到物镜32，以及 将从光源1到物镜32的波长为660nm，780nm的激光引入。

公开(公告)号：US06310852B1

公开(公告)日：2001-10-30

申请号：US09415290

申请日：1999-10-08

申请人： Hironori Tomita ,  Hideki Aikoh ,  Hideki Nakata ,  Hiromichi Furukawa

发明人： Hironori Tomita ,  Hideki Aikoh ,  Hideki Nakata ,  Hiromichi Furukawa

IPC分类号： G11B700

CPC分类号： G11B7/0946 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/1376 ,  G11B11/10543 ,  G11B11/10576 ,  G11B2007/13727

摘要： An optical recording/reproducing apparatus comprises: a light receiving and emitting device that emits divergent optical beams and detects various signals on a disk; a collimator lens for converting the optical beams emitted from the device into parallel beams; an objective lens for converging the optical beams of the parallel beams onto the disk; and an objective-lens drive for driving the objective lens in a focusing direction perpendicular to a recording surface of the disk and in a radial direction parallel to the recording surface. The objective-lens drive is supported by suspensions attached at one end to a lens holder for holding the objective lens and to a fixing member at their other ends. The collimator lens is positioned between the objective lens and the fixing member. Thus, the optical recording/reproducing apparatus can be reduced in size and can improve the strength of the suspensions for supporting the objective-lens drive against disturbance vibration or impact caused when the optical recording/reproducing apparatus is dropped.

摘要翻译： 一种光记录/再现装置，包括：发射发散光束并检测盘上的各种信号的光接收和发射装置; 准直透镜，用于将从装置发射的光束转换为平行光束; 用于将平行光束的光束会聚到盘上的物镜; 以及用于在与盘的记录表面垂直的聚焦方向上并且平行于记录表面的径向驱动物镜的物镜驱动器。 物镜驱动器由一端附接到用于保持物镜的透镜保持架和在其另一端处的固定构件的悬架支撑。 准直透镜位于物镜和定影部件之间。 因此，光学记录/再现装置的尺寸可以减小，并且可以提高用于支撑物镜驱动器的悬架的强度，以防止当光学记录/再现装置掉落时引起的干扰振动或冲击。

公开(公告)号：US20060092642A1

公开(公告)日：2006-05-04

申请号：US11261293

申请日：2005-10-28

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Takayuki Nagata

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Takayuki Nagata

IPC分类号： F21V29/00

CPC分类号： H05K1/0206 ,  G11B7/121 ,  G11B7/123 ,  G11B7/127 ,  H01L2224/32225 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/49171 ,  H01L2224/73265 ,  H05K1/0209 ,  H05K1/181 ,  H05K3/361 ,  H05K2201/09309 ,  H05K2201/09781 ,  H05K2201/10106 ,  H01L2924/00014 ,  H01L2924/00

摘要： A light emitting module used for an optical head having a light source and a single or plural light receiving elements and for using record or reproduce information on information recording medium includes a tabular conductive multilayer substrate; and at least a surface mount component mounted on the conductive multilayer substrate; the light emitting module includes at least the light source as the surface mount component.

摘要翻译： 用于具有光源和单个或多个光接收元件并用于在信息记录介质上使用记录或再现信息的光学头的发光模块包括片状导电多层基板; 以及安装在所述导电性多层基板上的至少一个表面安装部件; 发光模块至少包括作为表面安装部件的光源。

公开(公告)号：US20050169128A1

公开(公告)日：2005-08-04

申请号：US10502662

申请日：2003-05-06

申请人： Hideki Aikoh ,  Tohru Nakamura ,  Hideki Nakata

发明人： Hideki Aikoh ,  Tohru Nakamura ,  Hideki Nakata

IPC分类号： G11B7/12 ,  G11B7/13 ,  G11B7/22 ,  G11B7/00

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/13 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/00014

摘要： The present invention realizes a compact and thin light-receiving device in a simple configuration, and provides a compact optical head on which this light-receiving device is mounted. The light-receiving device for receiving light reflected from an information recording medium includes a light-receiving chip having a plurality of electrodes and a flexible wiring board on which the light-receiving chip is mounted and fixed. The plurality of electrodes are connected electrically to the flexible wiring board by attaching directly or via a metal wire.

摘要翻译： 本发明以简单的结构实现了一种紧凑且薄型的光接收装置，并且提供了一种紧凑的光头，该光接收装置安装在该光头上。 用于接收从信息记录介质反射的光的光接收装置包括具有多个电极的光接收芯片和安装和固定光接收芯片的柔性布线板。 多个电极通过直接或经由金属线附接而与柔性布线板电连接。

公开(公告)号：US08130624B2

公开(公告)日：2012-03-06

申请号：US12088555

申请日：2006-10-02

申请人： Hideki Nakata ,  Hideki Aikoh

发明人： Hideki Nakata ,  Hideki Aikoh

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/1362 ,  G11B2007/0006

摘要： An optical head device has at least one upward-reflecting mirror, objective lenses, an objective lens actuator, and a moving mechanism. The upward-reflecting mirror receives an incident luminous flux having a wavelength emitted from a semiconductor, and changes its direction. The objective lenses having mutually different numerical apertures condense the luminous flux whose direction has been changed by the upward-reflecting mirror to radiate a condensed luminous flux onto an information recording medium. The objective lens actuator moves the objective lenses in the focus direction of the information recording medium so that the luminous flux incident on the information recording medium attains a focused state. The moving mechanism moves the upward-reflecting mirror so that the luminous flux is incident on the information recording medium via any one of the objective lenses.

摘要翻译： 光学头装置具有至少一个向上反射镜，物镜，物镜致动器和移动机构。 向上反射镜接收从半导体发射的波长的入射光束，并改变其方向。 具有相互不同的数值孔径的物镜将通过向上反射镜改变方向的光通量冷凝，将会聚的光通量照射到信息记录介质上。 物镜致动器在信息记录介质的聚焦方向上移动物镜，使得入射到信息记录介质上的光通量达到聚焦状态。 移动机构使向上反射镜移动，使得光通量经由任何一个物镜入射到信息记录介质上。

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。

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。

公开(公告)号：US06865743B2

公开(公告)日：2005-03-08

申请号：US10717685

申请日：2003-11-19

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

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.