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41. 发明专利

JP2004281826A Semiconductor laser device and light pickup device using the same 有权
标题翻译：半导体激光器件和使用其的轻摄像器件
公开(公告)号：JP2004281826A
公开(公告)日：2004-10-07
申请号：JP2003072703
申请日：2003-03-17
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKAYAMA TORU
IPC分类号： G11B7/12 , G11B7/125 , H01S5/00 , H01S5/042 , H01S5/10 , H01S5/16 , H01S5/22 , H01S5/223
CPC分类号： H01S5/2231 , G11B7/123 , H01S5/02248 , H01S5/02292 , H01S5/0421 , H01S5/1014 , H01S5/162 , H01S5/2201 , H01S5/221
摘要： PROBLEM TO BE SOLVED: To provide a laser device which can stably oscillate in a basic lateral mode up to higher power in the semiconductor laser which is formed on a substrate (an inclined substrate) having the inclined surface from a specific crystal plane as a main surface and has a mesa-like ridge formed thereon. SOLUTION: In the semiconductor laser device which is formed on the inclined substrate composed of a compound semiconductor including an active layer and two clad layers sandwiching the active layer; one clad layer forms the mesa-like ridge, the ridge includes a first region (21) where the width of the bottom of the ridge is approximately constant, and second regions (22) where the width of the bottom of each ridge is changed continuously. The second regions (22) are formed between the first region (21) and end surfaces on optical paths. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种激光装置，其可以在形成在具有来自特定晶面的倾斜表面的基板（倾斜基板）上的半导体激光器中以基本横向模式稳定地振荡，直到更高的功率作为主表面并且在其上形成有台面状的脊。解决方案：在形成在由包括有源层的化合物半导体和夹持有源层的两个覆盖层构成的倾斜衬底上的半导体激光器件中; 一个包覆层形成台面状脊，脊包括脊的底部宽度近似恒定的第一区域（21）和每个脊的底部宽度连续变化的第二区域（22）。第二区域（22）形成在第一区域（21）和光路上的端面之间。版权所有（C）2005，JPO＆NCIPI

42. 发明专利

JP2004273105A Optical head and method of adjusting optical path thereof 审中-公开
公开(公告)号：JP2004273105A
公开(公告)日：2004-09-30
申请号：JP2004060356
申请日：2004-03-04
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： CHOI JONG-CHUL , LEE JIN-KYUNG , CHUNG CHONG-SAM , KIN TAIKEI , KIM KWANG , LEE JIN-WON
IPC分类号： G11B7/08 , G11B7/12 , G11B7/135 , G11B7/22
CPC分类号： G11B7/22 , G11B7/123
摘要： PROBLEM TO BE SOLVED: To provide an optical head which is a thin type and in which adjusting an optical path is easy and heat radiation efficiency is good. SOLUTION: This optical head comprises a laser diode 141 of a bottom surface of a substrate 140, a photo-detector 142 of the bottom surface of the substrate 140, an objective lens 110 of an upper surface side of the substrate 140, a prism 180 of a lower surface side of the substrate 140, and a hologram element and a 1/4 wavelength plate 170 between the substrate 140 and the prism 180. The optical head can be made thin while securing same object distance by arranging the substrate 140 between assembling bodies 100 and 200 and forming the optical path in a U shape. Also, as a transmitting optical path can be adjusted by moving the upper surface side assembling body 100 and a receiving optical path can be adjusted by moving the hologram element and the 1/4 wavelength plate 170, the optical path can be adjusted easily. Further, heat radiation efficiency becomes good by arranging an radiation plate 130 radiating heat from the laser diode 141 on the uppermost layer. COPYRIGHT: (C)2004,JPO&NCIPI

43. 发明专利

JP2004265458A Optical integrated unit and optical pickup device provided with the same 有权
公开(公告)号：JP2004265458A
公开(公告)日：2004-09-24
申请号：JP2003020614
申请日：2003-01-29
申请人： Sharp Corp , シャープ株式会社
发明人： MIKI RENZABUROU , SAKAI KEIJI , NUMATA TOMIYUKI , KAMIYAMA TETSUO , MAKIOKA HIROSHIGE , MIYAZAKI OSAMU
IPC分类号： G11B7/09 , G11B7/12 , G11B7/13 , G11B7/135
CPC分类号： G11B7/131 , G11B7/123 , G11B7/133 , G11B7/1353 , G11B7/1356
摘要： PROBLEM TO BE SOLVED: To provide an optical integrated unit in which such trouble can be prevented easily that an erroneous detection is undesirebly caused, and an optical pickup device provided with the same. SOLUTION: A light receiving plane 36 of a light receiving part 25 is divided into one side of light receiving region 38a and the other light receiving region 38b concerning a virtual one flat plane 37, and also, the one side of light receiving region 38a is divided into first, third, and fifth light receiving region parts 41, 43, 45, the other side light receiving region 38b is divided into second, fourth, and sixth light receiving region parts 42, 44, 46. First to third diffraction planes 31a-31b of hologram 31 guide a laser beam to the first to the sixth light receiving region parts 41-46. An optical element 32 is provided between the light receiving part 25 and the hologram 31 so that the element 32 transmits one part La1 of diffraction light diffracted by the first diffraction plane 31a of the hologram 31, guides it to the first light receiving region part 41 in the one side of light receiving region 38a, and transmits one part Lb2 of diffraction light diffracted by the second diffraction plane 31b, guides it to the fourth light receiving region part 44 in the other side of light receiving region 38b. COPYRIGHT: (C)2004,JPO&NCIPI

44. 发明专利

JP2004199793A Semiconductor laser device and optical pickup 有权
公开(公告)号：JP2004199793A
公开(公告)日：2004-07-15
申请号：JP2002367533
申请日：2002-12-19
申请人： Sharp Corp , シャープ株式会社
发明人： MATSUBARA KAZUNORI
IPC分类号： G11B7/125 , G11B7/12 , G11B7/135 , H01L31/12 , H01S3/04 , H01S3/08 , H01S5/00 , H01S5/02 , H01S5/022 , H01S5/026
CPC分类号： H01S5/02292 , G11B7/123 , H01S5/02216 , H01S5/02248 , H01S5/02296
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor laser device of a hologram laser system in which deviation in the positional relation of optical elements is hardly caused even if the volume of a package is expanded by temperature rise or moisture absorption. SOLUTION: A semiconductor laser device 100 is provided with a semiconductor laser element 1, a mirror 2, a photodetector 5 for reading a signal, a mirror mounting part 33, and a photodetector mounting part 32 inside a frame body 60 made of insulation resin. The device 1 is further provided with a hologram element 6 at an upper part of a side wall 60b of the frame body. The mirror mounting part 33 and the photodetector mounting part 32 are also made of resin to form them integrally with the bottom wall 60a of the frame 60, and are separated from the side wall 61b of the frame body 60. COPYRIGHT: (C)2004,JPO&NCIPI

45. 发明专利

JP2004086948A Multi-valued information reproducing method and multi-valued information reproducing device 审中-公开
标题翻译：多值信息再现方法和多值信息再现设备
公开(公告)号：JP2004086948A
公开(公告)日：2004-03-18
申请号：JP2002243676
申请日：2002-08-23
申请人： Sharp Corp , シャープ株式会社
发明人： SAEKI TETSUO
IPC分类号： G11B7/005 , G11B7/013 , G11B7/12 , G11B7/135
CPC分类号： G11B7/1395 , G11B7/005 , G11B7/123 , G11B7/24085 , G11B7/24088
摘要： PROBLEM TO BE SOLVED: To reproduce multi-valued information recorded in an optical recording medium accurately even if information pit width is narrower than the wavelength and has polarization characteristics.
SOLUTION: The multi-valued information reproducing method comprises a step for irradiating the optical recording medium wherein an information pit having the polarization characteristics is formed with s polarization light and p polarization light, a step for detecting the quantities of light reflected by the optical recording medium in every s polarization light and the p polarization light, a step (S01) for calculating modulation degrees of every s polarization light and p polarization light on the basis of the detected quantities of the reflected light, and steps (S02 to S09) for detecting the multi-valued information from a combination of size relations by comparing a plurality of the calculated modulation degrees.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使信息凹坑宽度比波长窄，并且具有偏振特性，也能够精确地再现记录在光学记录介质中的多值信息。解决方案：多值信息再现方法包括用于照射光记录介质的步骤，其中具有偏振特性的信息凹坑由s偏振光和p偏振光形成，用于检测由每个s偏振光和p偏振光中的光记录介质，基于检测到的反射光量计算每个s偏振光和p偏振光的调制度的步骤（S01），以及步骤（S02至 S09），用于通过比较多个所计算的调制度来从大小关系的组合检测多值信息。版权所有（C）2004，JPO

46. 发明专利

JP2003317264A Optical head and adjustment method thereof, and optical disk drive using the same 有权
标题翻译：光头及其调整方法，以及使用其的光盘驱动器
公开(公告)号：JP2003317264A
公开(公告)日：2003-11-07
申请号：JP2002087389
申请日：2002-03-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KAMISADA TOSHIMASA , KITADA YASUO , KONISHI YOSHIRO , TACHIBANA SUSUMU
IPC分类号： G11B7/08 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/22 , G11B19/20
CPC分类号： G11B7/22 , G11B7/123 , G11B7/1376
摘要： PROBLEM TO BE SOLVED: To suppress a variance in the emitting direction (center of intensity distribution) of laser beams emitted from a laser beam source by the simple structure and also to secure the positional accuracy of the laser beams, in an optical head using for an optical disk drive. SOLUTION: The adjustment is carried out so that the emitting direction (center of intensity distribution) of the laser beams is made to pass through an intersection between an optical axis of the objective lens and a main flat surface of the collimating lens by relatively tilting the laser beam source with respect to a holder in the state in which the holder is force-fitted into an outer peripheral part of the laser beam source, and also the laser beam source is positioned by fitting a part of the holder with a case. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了通过简单的结构抑制从激光束源发射的激光束的发射方向（强度分布的中心）的变化，并且还确保激光束的位置精度，在光学头用于光盘驱动器。解决方案：进行调整，使得激光束的发射方向（强度分布的中心）通过物镜的光轴与准直透镜的主平面之间的交点通过，在保持器被强制配合到激光束源的外周部分的状态下相对于保持器相对地倾斜激光束源，并且激光束源通过将保持器的一部分与案件。版权所有（C）2004，JPO

47. 发明专利

JP2003077171A Optical pickup device and recording medium applicable to the same 审中-公开
标题翻译：光拾取装置和适用于其的记录介质
公开(公告)号：JP2003077171A
公开(公告)日：2003-03-14
申请号：JP2002232365
申请日：2002-08-09
申请人： Samsung Electronics Co Ltd , 三星電子株式会社
发明人： KIM DAE-SIK , KO SHUNKYO , LEE CHUL-WOO , RI KOTETSU , CHO KUN-HO , YOO JANG-HOON
IPC分类号： G02B5/32 , G02B13/00 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/24
CPC分类号： G11B7/13922 , G11B7/123 , G11B7/1356 , G11B7/1374 , G11B7/139 , G11B7/24056
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup device with which an inexpensive and miniaturized optical recording/reproducing device having a high performance is realized and to provide a recording medium applicable to the device.
SOLUTION: The device includes an optical unit which irradiates a recording medium with an optical beam having a wavelength longer than 650 nm, receives and detects an optical beam refected from the recording medium and an objective lens composed of a single lens and having an aperture of 0.7 or larger for forming an optical spot on the recording medium by converging the optical beam made incident from the side of the optical unit, has a recording density not smaller than DVD serried and forms a reproducing signal optimized by the reflectance of the recording face by using a medium of which the recording face is appropriate to a long wavelength not smaller than 700 nm.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种实现具有高性能的便宜且小型化的光记录/再现装置的光拾取装置，并提供可应用于该装置的记录介质。解决方案：该装置包括一个光学单元，其用波长长于650nm的光束照射记录介质，接收和检测从记录介质反射的光束和由单个透镜组成的具有孔径的物镜用于通过会聚从光学单元侧入射的光束而在记录介质上形成光点的0.7或更大的记录密度具有不小于DVD的记录密度，并且形成由记录面的反射率优化的再现信号使用其记录面适合于不小于700nm的长波长的介质。

48. 发明专利

JP2003045059A Device for driving disk 有权
标题翻译：驱动盘设备
公开(公告)号：JP2003045059A
公开(公告)日：2003-02-14
申请号：JP2001227236
申请日：2001-07-27
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： YAMAUCHI YOSHIAKI , KIMURA KATSUHIKO , SATAKE MITSUO , OCHI MANABU , KATO MORIKAZU
IPC分类号： G11B7/00 , G11B7/12 , G11B7/125 , G11B33/14
CPC分类号： G11B7/127 , G11B7/123 , G11B33/1406 , G11B2007/0006
摘要： PROBLEM TO BE SOLVED: To prevent the deterioration of the durability of heat generating parts by decreasing a thermal interference between the heat generating parts which are arranged next to each other in an optical pickup of a device for driving a disk, thus to improve the reliability.
SOLUTION: A laser diode 27 and a laser driving circuit substrate 29 are mounted by thermally connecting to a pickup casing 24 and arranging next to each other, and a thermal insulating member 25 is provided which thermally separates the laser diode 27 and the laser driving circuit substrate 29.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题为了通过降低驱动盘的装置的光学拾取器中彼此相邻布置的发热部件之间的热干扰来防止发热部件的耐久性的劣化，从而提高可靠性。解决方案：激光二极管27和激光驱动电路基板29通过热连接到拾取器壳体24并相互排列而安装，并且提供了一种绝热构件25，其将激光二极管27和激光驱动电路衬底29。

49. 发明专利

JPS5933641A Information pickup device using semiconductor laser 失效
标题翻译：使用半导体激光器的信息拾取器件
公开(公告)号：JPS5933641A
公开(公告)日：1984-02-23
申请号：JP13274683
申请日：1983-07-22
申请人： Hitachi Ltd
发明人： AIKI KUNIO , SASAKI YOSHIMITSU , SUGIYAMA TOSHIO , MAEDA TAKESHI , OSHIMA MASAHIRO
IPC分类号： G11B7/125 , G11B7/12 , H01S5/00
CPC分类号： G11B7/123
摘要： PURPOSE:To improve the optical coupling efficiency of reproducing laser light and to ensure the stable reproduction of information, by setting both the light emitting end face of a semiconductor laser and the photodetecting surface of a photodetecting element in a container staring them so that they are put on a straight line to the light transmitting window of the container. CONSTITUTION:A light transmitting window 9, the light emitting end face of a semiconductor laser 1 and the photodetecting surface of a photodetecting element 2 are set in a container so that they are approximately put on a straight line along an axial line passing through the center of a support ring. The laser light radiated from a light transmitting part is irradiated on the surface 3 of an optical disk, and the information recorded on the surface 3 is reproduced by means of the reflected light given from the surface 3. Thus the reproducing laser light is extracted from the upper surface of the container with use of a single light emitting part. This extracted laser light is fitted to a cylinder which supports optical systems 4 and 4' that lead the laser light to the surface 3. This device facilitates coupling of laser light as well as position matching of optical axes. As a result, the optical coupling efficiency is improved for the reproducing laser light.
摘要翻译：目的：为了提高再现激光的光耦合效率并确保信息的稳定再现，通过将半导体激光器的发光端面和受光元件的光检测面两者设置在容器中，使其成为放在容器的透光窗口的直线上。构成：将透光窗9，半导体激光器1的发光端面和受光元件2的受光面设置在容器中，使其大致沿着穿过中心的轴线放置在直线上的支撑环。从光传输部分照射的激光照射在光盘的表面3上，并且通过从表面3给出的反射光再现记录在表面3上的信息。因此，再现激光从使用单个发光部分的容器的上表面。该提取的激光被装配到支撑将激光导向表面3的光学系统4和4'的圆柱体。该装置有助于激光的耦合以及光轴的位置匹配。结果，再现激光的光耦合效率得到改善。

50. 发明专利

JP5306541B2 Optical pickup device and an optical pickup supporting device 有权
标题翻译：空值
公开(公告)号：JP5306541B2
公开(公告)日：2013-10-02
申请号：JP2012520516
申请日：2011-06-14
申请人：三洋電機株式会社 , 三洋オプテックデザイン株式会社
发明人：康文山岸
IPC分类号： G11B7/135 , G11B7/12 , G11B7/1362
CPC分类号： G11B7/12 , B60L3/0046 , B60L11/1874 , B60L11/1875 , F28F3/02 , F28F3/12 , F28F2275/08 , G11B7/123 , G11B7/1362 , G11B2007/0006 , H01M10/02 , H01M10/0481 , H01M10/0525 , H01M10/0565 , H01M10/345 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/6551 , H01M10/656 , Y02E60/122 , Y02E60/124 , Y02P70/54 , Y02T10/7005 , Y02T10/705
摘要： In order to achieve further cost reduction while the package size of an optical pickup having two objective lenses and the restriction on the disposition of the two objective lenses are maintained, an optical system for laser light emitted from a red/infrared dual-wavelength laser diode is disposed such that a parallel plate beam splitter is disposed to be inclined with respect to the optical axis of focused light of the laser light reflected by an optical disk and the optical axis of the laser light between a rising mirror and the parallel plate beam splitter is inclined from the signal track direction of the optical disk. The laser light to which astigmatism is given by transmission through the parallel plate beam splitter is caused to be directly incident on a light detector without passing through an astigmatism adjustment optical element.
摘要翻译：为了实现进一步的成本降低，同时保持具有两个物镜的光学拾取器的封装尺寸和对两个物镜的布置的限制，用于从红/双红外双波长激光二极管发射的激光的光学系统被布置成使得平行板分束器被设置成相对于由光盘反射的激光的聚焦光的光轴倾斜并且激光的光轴在上升反射镜和平行板分束器之间从光盘的信号轨道方向倾斜。使通过平行板分束器的透射赋予散光的激光直接入射到光检测器上，而不通过散光调节光学元件。

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