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6 条记录 (耗时 0.019 秒)

    Optical amplifiers
    1.
    发明申请
    Optical amplifiers 有权
    光放大器

    公开(公告)号：US20050248833A1

    公开(公告)日：2005-11-10

    申请号：US11142549

    申请日：2005-06-01

    申请人： Stephen Fourte ,  Ian McClean ,  Gregory May ,  Hazel McInnes ,  Olivier Moteau

    发明人： Stephen Fourte ,  Ian McClean ,  Gregory May ,  Hazel McInnes ,  Olivier Moteau

    IPC分类号： H01S3/067 ,  H01S3/13 ,  H04B10/294 ,  H01S3/00

    CPC分类号： H04B10/2941 ,  H01S3/06758 ,  H01S3/1301 ,  H01S3/1305 ,  H04J14/0221

    摘要： A multichannel optical amplifier having an adjustable gain set point is controlled to permit substantially constant gain tilt control during a gain set-point change so that the channel powers are maintained during system modification. To this end the amplifier comprises an erbium doped fibre (EDF) loop and associated pump amplifier for amplifying an optical signal comprising channels of different wavelengths, a variable optical attenuator (VOA) for controlling the gain of the amplifier by applying a loss profile that varies with wavelength so that the different channels are amplified in accordance with a required gain tilt, preferably a zero gain tilt, and a PI controller for applying a gain tilt adaptation profile to compensate for an inherent gain tilt to produce the required gain tilt. Furthermore the PI controller is arranged to change the gain tilt adaptation profile in response to a change in the gain set point to allow for the different gain characteristics of the amplifier at different gain set points.

    摘要翻译： 控制具有可调节增益设定点的多通道光放大器，以在增益设定点改变期间允许基本恒定的增益倾斜控制，使得在系统修改期间维持通道功率。 为此，放大器包括掺铒光纤（EDF）回路和相关联的泵浦放大器，用于放大包括不同波长信道的光信号，可变光衰减器（VOA），用于通过应用变化的损耗曲线来控制放大器的增益 具有波长，使得不同的通道根据所需的增益倾斜，优选零增益倾斜放大，以及PI控制器，用于施加增益倾斜自适应轮廓以补偿固有增益倾斜以产生所需的增益倾斜。 此外，PI控制器被布置为响应于增益设定点的变化来改变增益倾斜自适应曲线，以允许放大器在不同增益设定点处的不同增益特性。

    OPTICAL NAVIGATION DEVICE
    4.
    发明申请
    OPTICAL NAVIGATION DEVICE 有权
    光学导航装置

    公开(公告)号：US20140110564A1

    公开(公告)日：2014-04-24

    申请号：US14126153

    申请日：2012-04-12

    申请人： Colin Campbell ,  Hazel McInnes ,  Ewan Findlay

    发明人： Colin Campbell ,  Hazel McInnes ,  Ewan Findlay

    IPC分类号： G06F3/0354 ,  H01L25/16

    CPC分类号： G06F3/03547 ,  G06F3/0421 ,  H01L25/167 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An optical navigation device for use with mobile telephones and the like is disclosed, which has a reduced height as compared with current designs. The navigation device comprises a laser such as a VCSEL laser, an exposed user surface and two other surfaces that provide for total internal reflection of the incident laser beam. The surfaces are constructed with shallower than normal angles, preserving the basic functionality of the device while reducing the height.

    摘要翻译： 公开了一种与移动电话等一起使用的光学导航装置，其与当前设计相比具有降低的高度。 导航装置包括诸如VCSEL激光器的激光器，暴露的使用者表面和提供入射激光束的全内反射的两个其它表面。 表面构造成比普通角度浅，保持设备的基本功能同时降低高度。

    CAMERA MODULE LENS CAP
    6.
    发明申请
    CAMERA MODULE LENS CAP 有权
    相机模块镜头盖

    公开(公告)号：US20090057544A1

    公开(公告)日：2009-03-05

    申请号：US11872226

    申请日：2007-10-15

    申请人： Stuart Brodie ,  Hazel McInnes ,  Kum Weng Loo ,  Mickael Miglietti ,  Eric Saugier

    发明人： Stuart Brodie ,  Hazel McInnes ,  Kum Weng Loo ,  Mickael Miglietti ,  Eric Saugier

    IPC分类号： G03B17/02

    CPC分类号： G03B11/00 ,  H04N5/2257

    摘要： A camera module lens cap is provided to protect a camera module in a mobile device where the camera module is exposed. The camera module lens cap includes an optically transparent member for positioning adjacent a camera lens, and a housing for carrying the optically transparent member. The housing includes an overhanging lip for engaging a base of the camera module.

    摘要翻译： 提供相机模块透镜盖，以保护相机模块暴露在的移动设备中的相机模块。 相机模块透镜盖包括用于定位在相机镜头附近的光学透明构件和用于承载光学透明构件的壳体。 壳体包括用于接合摄像机模块的基座的突出唇缘。