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    Optical pickup with conversion of diffusion angle of outgoing light relative to diffusion angle of incident light
    2.
    发明授权
    Optical pickup with conversion of diffusion angle of outgoing light relative to diffusion angle of incident light 失效
    具有相对于入射光扩散角的出射光扩散角转换的光学拾取器

    公开(公告)号：US5790502A

    公开(公告)日：1998-08-04

    申请号：US533789

    申请日：1995-09-26

    申请人： Shogo Horinouchi ,  Shigeki Takeuchi ,  Kazuhiko Higo ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Jiro Mimasa ,  Hidehiro Kugisaki

    发明人： Shogo Horinouchi ,  Shigeki Takeuchi ,  Kazuhiko Higo ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Jiro Mimasa ,  Hidehiro Kugisaki

    IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105 ,  G11B7/00

    CPC分类号： G11B7/1356 ,  G11B11/10543 ,  G11B11/10576 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/1362 ,  G11B7/22

    摘要： In an optical pickup, light, emitted from a light-emitting element, is transmitted through a first beam splitter film with polarization selectivity, and a zero-order diffraction beam and two (.+-.) first order diffraction beams are produced. These beams are applied in a condensed manner to an optical disk through a condensing element, and the return light beam from the optical disk is fed to a photodetector through a second beam splitter film with polarization selectivity, thereby effecting the recording and reproduction of information, the tracking and the focusing. A diffusion angle conversion hologram is provided between the light-emitting element and the first beam splitter film, and with respect to the diffusion angle conversion hologram, the relation between the diffusion angle of the incident beam and the diffusion angle of the outgoing beam is specified. With this arrangement, the light to be incident on the condensing element can have an ideal spherical wave free from a wave aberration, so that an image spot on the optical disk can be condensed into a diffraction limit, and besides by correcting the phase of the beam, a RF signal with a high C/N ratio, a stable focus error signal and a stable track signal are detected.

    摘要翻译： 在光学拾取器中，从发光元件发射的光通过具有偏振选择性的第一分束器膜透射，并且产生零级衍射光束和两个（+/-）一阶衍射光束。 这些光束以冷凝的方式通过聚光元件施加到光盘，并且来自光盘的返回光束通过具有偏振选择性的第二分束器膜馈送到光电检测器，从而实现信息的记录和再现， 跟踪和聚焦。 在发光元件和第一分光膜之间设置扩散角转换全息图，并且关于扩散角转换全息图，指定入射光束的扩散角与出射光束的扩散角之间的关系 。 通过这种布置，入射到聚光元件上的光可以具有没有波像差的理想的球面波，使得光盘上的图像斑点可以被冷凝成衍射极限，并且除了通过校正 检测到具有高C / N比的RF信号，稳定的聚焦误差信号和稳定的轨迹信号。

    Method of manufacturing integrated optical pick-up
    3.
    发明授权
    Method of manufacturing integrated optical pick-up 失效
    集成光学拾取器的制造方法

    公开(公告)号：US5978344A

    公开(公告)日：1999-11-02

    申请号：US883374

    申请日：1997-06-26

    申请人： Shogo Horinouchi ,  Shigeki Takeuchi ,  Kazuhiko Higo ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Jiro Mimasa ,  Hidehiro Kugisaki

    发明人： Shogo Horinouchi ,  Shigeki Takeuchi ,  Kazuhiko Higo ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Jiro Mimasa ,  Hidehiro Kugisaki

    IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105 ,  G11B7/00

    CPC分类号： G11B7/1356 ,  G11B11/10543 ,  G11B11/10576 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/1362 ,  G11B7/22

    摘要： In an optical pickup, light, emitted from a light-emitting element, is transmitted through a first beam splitter film with polarization selectivity, and a zero-order diffraction beam and two (.+-.) first order diffraction beams are produced. These beams are applied in a condensed manner to an optical disk through a condensing element, and the return light beam from the optical disk is fed to a photodetector through a second beam splitter film with polarization selectivity, thereby effecting the recording and reproduction of information, the tracking and the focusing. A diffusion angle conversion hologram is provided between the light-emitting element and the first beam splitter film, and with respect to the diffusion angle conversion hologram, the relation between the diffusion angle of the incident beam and the diffusion angle of the outgoing beam is specified. With this arrangement, the light to be incident on the condensing element can have an ideal spherical wave free from a wave aberration, so that an image spot on the optical disk can be condensed into a diffraction limit, and besides by correcting the phase of the beam, a RF signal with a high C/N ratio, a stable focus error signal and a stable track signal are detected.

    摘要翻译： 在光学拾取器中，从发光元件发射的光通过具有偏振选择性的第一分束器膜透射，并且产生零级衍射光束和两个（+/-）一阶衍射光束。 这些光束以冷凝的方式通过聚光元件施加到光盘，并且来自光盘的返回光束通过具有偏振选择性的第二分束器膜馈送到光电检测器，从而实现信息的记录和再现， 跟踪和聚焦。 在发光元件和第一分光膜之间设置扩散角转换全息图，并且关于扩散角转换全息图，指定入射光束的扩散角与出射光束的扩散角之间的关系 。 通过这种布置，入射到聚光元件上的光可以具有没有波像差的理想的球面波，使得光盘上的图像斑点可以被冷凝成衍射极限，并且除了通过校正 检测到具有高C / N比的RF信号，稳定的聚焦误差信号和稳定的轨迹信号。

    Optical pickup incorporating an integrated optical guide member
    4.
    发明授权
    Optical pickup incorporating an integrated optical guide member 失效
    并入有集成光导元件的光拾取器

    公开(公告)号：US5777975A

    公开(公告)日：1998-07-07

    申请号：US603766

    申请日：1996-02-20

    申请人： Syogo Horinouchi ,  Shigeki Takeuchi ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Kazuhiko Higo ,  Hidehiro Kugisaki ,  Fumiaki Beppu ,  Jiro Mimasa

    发明人： Syogo Horinouchi ,  Shigeki Takeuchi ,  Hideki Yoshinaka ,  Toshihiro Koga ,  Kazuhiko Higo ,  Hidehiro Kugisaki ,  Fumiaki Beppu ,  Jiro Mimasa

    IPC分类号： G02B6/32 ,  G02B6/42 ,  G02B27/28 ,  G11B7/09 ,  G11B7/12 ,  G11B7/13 ,  G11B7/135 ,  G11B7/22 ,  G11B11/105 ,  G11B7/00

    CPC分类号： G11B7/1356 ,  G02B27/283 ,  G11B11/10543 ,  G11B7/123 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1372 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/22

    摘要： A light source beam is incident on an optical guide block and converted in its diffusion angle by a diffusion angle conversion film on a second inclined portion of the optical guide block, and reflected by a reflecting film on a first inclined portion. Then, the light is incident on a first beam splitter film on the second inclined portion and split into transmitted light and reflected light. The reflected light is focused an optical disk light reflected from the disc passes through the first beam splitter film, and then is transmitted and reflected by a second beam splitter film on a third inclined portion. This transmitted light is incident on a polarization plane conversion plate between the third inclined portion and a fourth inclined portion, so that P and S polarization components and are transmitted through and reflected by its polarized light splitting portion, respectively. The S polarization component is reflected by its reflecting surface toward light-receiving elements. The reflected light from the second beam splitter film is reflected by a focus error detection element on the second inclined portion, and an incident light-splitting point of the polarized light splitting portion is located between the center of the optical guide block and the light-receiving elements, thereby reducing a light amount loss and also increasing a Kerr rotation angle so that an RF reproduction signal with a high C/N ratio can be obtained.

    摘要翻译： 光源光束入射到光导块上，并且通过扩散角转换膜在光导块的第二倾斜部分上被扩散角度转换，并由第一倾斜部分上的反射膜反射。 然后，光入射到第二倾斜部分上的第一分束器膜上并分裂成透射光和反射光。 反射光被聚焦，从盘反射的光盘光通过第一分束器膜，然后在第三倾斜部分上被第二分束器膜透射和反射。 该透射光入射到第三倾斜部分和第四倾斜部分之间的偏振平面转换板上，使得P和S偏振分量分别透射并由其偏振光分离部分反射。 S偏振分量被其反射表面反射到光接收元件。 来自第二分束器膜的反射光由第二倾斜部分上的聚焦误差检测元件反射，并且偏振光分离部分的入射光分离点位于光导块的中心和发光元件之间， 接收元件，从而减少光量损失并且还增加克尔旋转角度，使得可以获得具有高C / N比的RF再现信号。

    Optical pickup apparatus
    5.
    发明授权
    Optical pickup apparatus 失效
    光拾取装置

    公开(公告)号：US06654320B2

    公开(公告)日：2003-11-25

    申请号：US09783045

    申请日：2001-02-15

    申请人： Masaharu Fukakusa ,  Shogo Horinouchi ,  Shigeki Takeuchi ,  Toshihiro Koga ,  Fuminobu Furukawa

    发明人： Masaharu Fukakusa ,  Shogo Horinouchi ,  Shigeki Takeuchi ,  Toshihiro Koga ,  Fuminobu Furukawa

    IPC分类号： G11B700

    CPC分类号： G11B7/1356 ,  G11B7/12 ,  G11B7/127 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/22

    摘要： A small-sized, inexpensive optical pickup apparatus can be assembled with high accuracy. The optical pickup apparatus has a various-purpose semiconductor laser, an integrated optical assembly for guiding outgoing light to an optical disk and for separating reflected light, a light receiver for receiving light and converting the received light into an electrical signal, and a coupling member for retaining a positional relationship among the various-purpose semiconductor laser, the integrated optical assembly, and the light receiver. By using a various-purpose semiconductor laser, the optical pickup apparatus can be made in a small size at low cost, and can be accurately assembled. The apparatus is also capable of accurately and efficiently detecting the optical power of the various-purpose semiconductor laser.

    摘要翻译： 可以高精度地组装小尺寸，便宜的光学拾取装置。 光拾取装置具有各种用途的半导体激光器，用于将出射光引导到光盘并用于分离反射光的集成光学组件，用于接收光并将接收的光转换成电信号的光接收器，以及耦合部件 用于保持各种用途半导体激光器，集成光学组件和光接收器之间的位置关系。 通过使用各种用途的半导体激光器，可以以低成本将光学拾取装置制成小尺寸，并且可以精确地组装。 该装置还能够准确且有效地检测各种用途的半导体激光器的光功率。

    Wireless telephone equipment operating as a cordless and cellular telephone
    7.
    发明授权
    Wireless telephone equipment operating as a cordless and cellular telephone 失效
    作为无绳和蜂窝电话的无线电话设备

    公开(公告)号：US6085109A

    公开(公告)日：2000-07-04

    申请号：US48188

    申请日：1993-04-20

    申请人： Toshihiro Koga

    发明人： Toshihiro Koga

    IPC分类号： H04B1/00 ,  H04B1/40 ,  H04W88/06 ,  H04Q7/20

    CPC分类号： H04W88/06 ,  H04B1/406 ,  H04B1/00

    摘要： A wireless telephone equipment is provided with a microphone for receiving voice of a user and changing the voice to audio signals of an outgoing call, a cellular transmitter for modulating a carrier with the audio signals in a cellular communication, a cellular band-pass filter for filtering the carrier modulated in the cellular transmitter, a cordless transmitter for modulating a carrier with the audio signals in a cordless communication, a cordless band-pass filter for filtering the carrier modulated in the cordless transmitter, an antenna for transmitting the carrier filtered in the cellular or cordless band-pass filter and receiving a modulated signal, a band-pass filter for filtering the modulated signal, a cellular-cordless receiver for demodulating the modulated signal filtered to reproduce audio signals of an incoming call in the cellular communication and cordless communication, and a speaker for receiving the audio signals of the incoming call and giving voice. In cases where the equipment is positioned within call range of a cordless base station, the cordless communication is performed.

    摘要翻译： 无线电话设备设置有麦克风，用于接收用户的语音并将语音改变为呼出呼叫的音频信号，用于在蜂窝通信中用音频信号调制载波的蜂窝发射机，蜂窝带通滤波器 过滤在蜂窝发射机中调制的载波，用于在无绳通信中用音频信号调制载波的无绳发射机，用于对在无绳发射机中调制的载波进行滤波的无绳带通滤波器，用于发射在无线发射机中滤波的载波的天线 蜂窝或无绳带通滤波器和接收调制信号，用于滤波调制信号的带通滤波器，用于解调被滤波以调制蜂窝通信中的来话呼叫的音频信号和无绳通信的调制信号的蜂窝无绳接收机 以及用于接收来电和给出语音的音频信号的扬声器。 在设备位于无绳基站的通话范围内的情况下，进行无绳通信。

    Integrated type optical pickup having packaging with gas-tight seal
    8.
    发明授权
    Integrated type optical pickup having packaging with gas-tight seal 失效
    集成型光学拾取器具有气密密封的封装

    公开(公告)号：US5783818A

    公开(公告)日：1998-07-21

    申请号：US641643

    申请日：1996-05-01

    申请人： Seiji Manabe ,  Mikio Tomisaki ,  Shigeki Takeuchi ,  Tatsuya Hiwatashi ,  Kazuhisa Ide ,  Toshihiro Koga ,  Makoto Okazaki ,  Kazuyuki Nakashima ,  Sumio Tate

    发明人： Seiji Manabe ,  Mikio Tomisaki ,  Shigeki Takeuchi ,  Tatsuya Hiwatashi ,  Kazuhisa Ide ,  Toshihiro Koga ,  Makoto Okazaki ,  Kazuyuki Nakashima ,  Sumio Tate

    IPC分类号： G11B7/12 ,  G11B7/125 ,  H01J5/02

    CPC分类号： G11B7/127 ,  G11B7/124

    摘要： In an optical pickup, an optical guide member is provided in an optical path of light from a light source, and has a plurality of inclined surfaces inclined with respect to a light beam emitted from the light source. A light-receiving element is provided for receiving light and for converting the received light into an electrical signal. The optical guide member and the light-receiving element are contained in a packaging member. The light beam from the light source is reflected by the plurality of inclined surfaces of the optical guide member, and then are directed to a recording medium. The reflected light from the recording medium is directed to the light-receiving element. At least one of dry air and inert gas such as nitrogen gas is charged in the interior of the packaging member at a pressure of 0.5 atm to 1.5 atm, thereby preventing the optical characteristics from being degraded.

    摘要翻译： 在光拾取器中，光导构件设置在来自光源的光的光路中，并且具有相对于从光源发射的光束倾斜的多个倾斜面。 光接收元件用于接收光并将接收的光转换成电信号。 导光构件和光接收元件容纳在包装构件中。 来自光源的光束被光导构件的多个倾斜面反射，然后被引导到记录介质。 来自记录介质的反射光被引导到光接收元件。 将干燥空气和氮气等惰性气体中的至少一种以0.5atm〜1.5atm的压力填充在包装部件的内部，从而防止光学特性劣化。