2.
    发明专利
    未知

    公开(公告)号:DE69520901T2

    公开(公告)日:2001-11-29

    申请号:DE69520901

    申请日:1995-03-07

    Applicant: SONY CORP

    Abstract: An optical device for detecting a magneto-optical signal can be simplified and miniaturized in arrangement. An optical device for detecting a magneto-optical signal includes an optical element (1) in which a light-emitting portion and a light receiving portion are closely disposed on a common substrate and in which reflected-back light obtained from a magneto-optical medium (36) after light from the light-emitting portion was reflected on the magneto-optical medium (36) is detected at a position near confocal position by the light receiving portion and another light receiving element (32). The reflected-back light from the magneto-optical medium (36) is divided. One reflected-back light is detected by the light receiving portion of the optical element 1 and the other reflected-back light is detected by another light receiving element (32).

    3.
    发明专利
    未知

    公开(公告)号:DE69520901D1

    公开(公告)日:2001-06-21

    申请号:DE69520901

    申请日:1995-03-07

    Applicant: SONY CORP

    Abstract: An optical device for detecting a magneto-optical signal can be simplified and miniaturized in arrangement. An optical device for detecting a magneto-optical signal includes an optical element (1) in which a light-emitting portion and a light receiving portion are closely disposed on a common substrate and in which reflected-back light obtained from a magneto-optical medium (36) after light from the light-emitting portion was reflected on the magneto-optical medium (36) is detected at a position near confocal position by the light receiving portion and another light receiving element (32). The reflected-back light from the magneto-optical medium (36) is divided. One reflected-back light is detected by the light receiving portion of the optical element 1 and the other reflected-back light is detected by another light receiving element (32).

    SEMICONDUCTOR LASER DEVICES
    4.
    发明专利

    公开(公告)号:GB2165694B

    公开(公告)日:1988-05-05

    申请号:GB8525084

    申请日:1985-10-11

    Applicant: SONY CORP

    Abstract: A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.

    6.
    发明专利
    未知

    公开(公告)号:DE69419370T2

    公开(公告)日:2000-01-27

    申请号:DE69419370

    申请日:1994-08-24

    Applicant: SONY CORP

    Abstract: An optical device structure can be simplified and miniaturized on the whole. A fabrication of optical device can be simplified and the optical device can be improved in reliability. The optical device can increase its output, operate a light emitting light source with a reduced power and reduce a power consumption by increasing a quantity of reflected-back light to a photosensor device, i.e., a quantity of photosensed light. An optical device includes a light emitting section (1), a radiated section (2), a converging means (3) and a photosensor section (4). Light emitted from the light emitting section (1) is converged and radiated on the radiated section (2) by the converging means (3). Reflected-back light (LR) reflected from the radiated section (2) is converged and the photosensor section (4) is disposed near a confocal of the converging means (3) concerning reflected-back light from the radiated section (2). Light emitted from the light emitting section (1) is passed through a path of the same axis and photosensed by the photosensor section (4) as shown by a one-dot chain line (a) representing the optical axis before and after the emitted light is reflected by the radiated section (2).

    7.
    发明专利
    未知

    公开(公告)号:DE3536738A1

    公开(公告)日:1986-04-17

    申请号:DE3536738

    申请日:1985-10-15

    Applicant: SONY CORP

    Abstract: A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.

    9.
    发明专利
    未知

    公开(公告)号:FR2571901B1

    公开(公告)日:1988-12-02

    申请号:FR8515319

    申请日:1985-10-16

    Applicant: SONY CORP

    Abstract: A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.

    10.
    发明专利
    未知

    公开(公告)号:FR2571901A1

    公开(公告)日:1986-04-18

    申请号:FR8515319

    申请日:1985-10-16

    Applicant: SONY CORP

    Abstract: A semiconductor laser device is disclosed herein in which a semiconductor laser chip is mounted on a surface of a semiconductor substrate at one region and a plurality of photo-detecting portions for receiving laser light emitted from the semiconductor laser chip are provided on the surface of the semiconductor substrate at another region separated from the semiconductor laser chip.

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