Semiconductor laser devices with a plurality of light emitting layers
having different bands gaps and methods for driving the same
    43.
    发明授权
    Semiconductor laser devices with a plurality of light emitting layers having different bands gaps and methods for driving the same 失效
    具有多个具有不同带间隙的发光层的半导体激光器件及其驱动方法

    公开(公告)号:US5224114A

    公开(公告)日:1993-06-29

    申请号:US936737

    申请日:1992-08-31

    摘要: A semiconductor laser device usable as a tunable laser, optical amplifier, optical wavelength converter and the like includes a plurality of light emitting layers, a barrier layer formed between the light emitting layers, a pair of light-electron confinement layers for sandwiching the light emitting layers and the barrier layer. Band gaps of ground levels of the light emitting layers are different from each other, a band gap of the barrier layer is larger than those of the light emitting layers and band gaps of the light-electron confinement layers are different from each other. Further, the light emitting layers, the barrier layer and the light-electron confinement layers are formed such that, when carriers are injected into the light emitting layers, a carrier density of the light emitting layer having a larger band gap is made higher and a carrier density of the light emitting layer having a smaller band gap is made lower than at least one of cases where the barrier layer is omitted and where a pair of the light-electron confinement layers are symmetrically formed with respect to the light emitting layers.

    摘要翻译: 可用作可调谐激光器,光放大器,光波长转换器等的半导体激光器件包括多个发光层,形成在发光层之间的阻挡层,一对夹着发光的光电子约束层 层和阻挡层。 发光层的地层的带隙彼此不同,阻挡层的带隙大于发光层的带隙,并且光电子约束层的带隙彼此不同。 此外,形成发光层,势垒层和光电子约束层,使得当载流子注入发光层时,具有较大带隙的发光层的载流子密度变高,并且 使具有较小带隙的发光层的载流子密度低于省略阻挡层的情况中的至少一种,并且其中一对光电子约束层相对于发光层对称地形成。

    Ridge waveguide-type semiconductor laser having a current recombination
layer and an optical waveguide layer
    45.
    发明授权
    Ridge waveguide-type semiconductor laser having a current recombination layer and an optical waveguide layer 失效
    具有电流复合层和光波导层的脊波导型半导体激光器

    公开(公告)号:US4896328A

    公开(公告)日:1990-01-23

    申请号:US284602

    申请日:1988-12-15

    IPC分类号: H01S5/00 H01S5/22 H01S5/34

    CPC分类号: B82Y20/00 H01S5/22 H01S5/34

    摘要: A ridge waveguide-type semiconductor laser comprises a current recombination layer which generates light, and an optical waveguide layer to which the light generated at the recombination layer is coupled. A belt-like projection is formed by etching at least a part of the optical waveguide layer in the direction of its thickness at both opposing side regions up to a central region in the direction of the width of the laser.

    摘要翻译: 脊形波导型半导体激光器包括产生光的电流复合层和耦合在复合层处产生的光的光波导层。 通过在激光的宽度方向上的两个相对侧区域的中心区域沿其厚度方向蚀刻光波导层的至少一部分来形成带状突起。

    Circuit device having capacitor and field effect transistor, and display apparatus therewith
    47.
    发明授权
    Circuit device having capacitor and field effect transistor, and display apparatus therewith 失效
    具有电容器和场效应晶体管的电路装置及其显示装置

    公开(公告)号:US07608877B2

    公开(公告)日:2009-10-27

    申请号:US11555943

    申请日:2006-11-02

    IPC分类号: H01L29/772

    摘要: In a circuit device having a field effect transistor and a capacitor, the capacitor is connected to at least one of a gate electrode, a source electrode and a drain electrode of a field effect transistor, the field effect transistor has a channel comprised of a first nano-wire, and the capacitor comprises a first electrode comprised of a second nano-wire having electroconductivity, a dielectric layer partly covering the peripheral face of the first electrode and a second electrode covering the peripheral face of the dielectric layer.

    摘要翻译: 在具有场效应晶体管和电容器的电路装置中,电容器连接到场效应晶体管的栅电极,源电极和漏电极中的至少一个,场效应晶体管具有由第一 纳米线,并且所述电容器包括由具有导电性的第二纳米线构成的第一电极,部分地覆盖所述第一电极的外周面的电介质层和覆盖所述电介质层的外周面的第二电极。

    System for administering readout contents, image reader device, and method for administering contents
    48.
    发明授权
    System for administering readout contents, image reader device, and method for administering contents 失效
    用于管理读出内容的系统,图像读取装置和用于管理内容的方法

    公开(公告)号:US07538904B2

    公开(公告)日:2009-05-26

    申请号:US10803926

    申请日:2004-03-19

    IPC分类号: H04N1/40 H04N1/387 G06K15/00

    摘要: A system for administering readout contents according to the present invention includes: an image reader device having an image read unit for reading out contents information drawn on display media with an RF-ID tag and an RF-ID read unit for reading out identification information on the RF-ID tag of the display media by wireless communication; and a data administration device for accumulating the contents information read out by the image read unit and administration information related to the contents information, in association with identification information.

    摘要翻译: 根据本发明的用于管理读出内容的系统包括:具有图像读取单元的图像读取器装置,用于读取使用RF-ID标签在显示介质上绘制的内容信息,以及RF-ID读取单元,用于读出关于 通过无线通信的显示媒体的RF-ID标签; 以及数据管理装置,用于与识别信息相关联地累积由图像读取单元读出的内容信息和与内容信息相关的管理信息。