Light emitting device provided with semiconducting phosphor configured with four fluorescences having different emission peak wavelengths
    22.
    发明授权
    Light emitting device provided with semiconducting phosphor configured with four fluorescences having different emission peak wavelengths 有权
    配备有具有不同发射峰值波长的四种荧光体的半导体荧光体的发光器件

    公开(公告)号:US07679277B2

    公开(公告)日:2010-03-16

    申请号:US11606901

    申请日:2006-12-01

    IPC分类号: H05B33/00

    摘要: A light emitting device includes a light emitting element having an emission peak wavelength of 350 nm-420 nm and a phosphor absorbing light from this light emitting element and emitting fluorescence having a different emission peak wavelength. The phosphor is formed of a semiconductor material that allows the emission peak wavelength to be controlled by transition across the bandgap, and is configured with four or more fluorescences having different emission peak wavelengths. Thus, it is possible to provide a light emitting device which has a relatively simple structure to keep high theoretical efficiency limit and achieves good general color rendering index (Ra) and special color rendering index (R9).

    摘要翻译: 发光装置包括具有350nm-420nm的发射峰值波长的发光元件和从该发光元件吸收光并发射具有不同发射峰值波长的荧光的荧光体。 荧光体是由半导体材料构成的,该半导体材料允许通过带隙过渡来控制发射峰值波长,并配置有具有不同发射峰值波长的四种或更多种荧光。 因此,可以提供具有相对简单的结构以保持高理论效率极限并获得良好的一般显色指数(Ra)和特殊显色指数(R9)的发光器件。

    Light-emitting device, and illumination apparatus and display apparatus using the light-emitting device
    25.
    发明授权
    Light-emitting device, and illumination apparatus and display apparatus using the light-emitting device 有权
    发光装置以及使用该发光装置的照明装置和显示装置

    公开(公告)号:US08269237B2

    公开(公告)日:2012-09-18

    申请号:US11316978

    申请日:2005-12-27

    IPC分类号: H01L33/00

    摘要: A light-emitting device including a light-emitting element emitting excitation light for exciting a fluorescent body, a dispersion body having the fluorescent body dispersed therein, which fluorescent body emits fluorescent light having a wavelength different from that of the excitation light, and a lead frame holding the light-emitting element and the dispersion body, wherein at least a portion of the fluorescent light emitted from the fluorescent body in the dispersion body is output to the outside from a side of the dispersion body receiving the excitation light. With this, a light-emitting device having high light output efficiency and an illumination apparatus and a display apparatus using the light-emitting device are provided.

    摘要翻译: 一种发光装置,其包括发射用于激发荧光体的激发光的发光元件,其中分散有荧光体的分散体,该荧光体发射具有与激发光的波长不同的荧光的荧光体;以及铅 保持发光元件和分散体的框架,其中从分散体中的荧光体发射的荧光的至少一部分从接收激发光的分散体的一侧输出到外部。 由此,提供了具有高的光输出效率的发光装置和照明装置以及使用该发光装置的显示装置。

    Spatial light transmission apparatus
    27.
    发明授权
    Spatial light transmission apparatus 失效
    空间光传输装置

    公开(公告)号:US5548434A

    公开(公告)日:1996-08-20

    申请号:US351224

    申请日:1994-11-30

    IPC分类号: H04B10/112 H04B10/00

    CPC分类号: H04B10/1125

    摘要: A spatial coherent light transmission apparatus according to the present invention, includes: a light transmitter for emitting a data signal as first coherent light; a light receiver for emitting second coherent light having a wavelength little different from that of The first coherent light, mixing and receiving the first and second coherent lights, and performing a coherent detection of the data signal. At least one of the light transmitter and the light receiver has a detection device for detecting at least one of a coherent light transmission state and a coherent light detection state. The apparatus further includes a control device for controlling at least one of the light transmitter and the light receiver based on information of the state detected by the detection device.

    摘要翻译: 根据本发明的空间相干光传输装置包括:光发射器,用于发射数据信号作为第一相干光; 用于发射具有与第一相干光的波长略微不同的波长的第二相干光的光接收器,混合和接收第一和第二相干光,以及执行数据信号的相干检测。 光发射器和光接收器中的至少一个具有用于检测相干光透射状态和相干光检测状态中的至少一个的检测装置。 该装置还包括控制装置,用于根据由检测装置检测到的状态的信息来控制光发射器和光接收器中的至少一个。

    Optical information reading method for reducing laser noise using a
semiconductor laser and a driving device for the semiconductor laser
    28.
    发明授权
    Optical information reading method for reducing laser noise using a semiconductor laser and a driving device for the semiconductor laser 失效
    使用半导体激光器降低激光噪声的光信息读取方法和用于半导体激光器的驱动装置

    公开(公告)号:US5448548A

    公开(公告)日:1995-09-05

    申请号:US140748

    申请日:1993-10-21

    IPC分类号: G11B7/125 H01S5/042

    CPC分类号: G11B7/126

    摘要: A method for optically reading recorded information by radiating laser light emitted from a semiconductor laser which oscillates in a single longitudinal mode to an information recording medium and by detecting laser light reflected from a recording face of the information recording medium is disclosed. In the method, the optical frequency of the laser light is modulated in order that the modulated optical frequency is a periodic function dependent on time, and the absolute value of a time differential coefficient R (Hz/s) of the periodic function, a spectral line width .delta. .nu. (Hz) of the laser light, and a time period .tau. (s) from the time when the laser light is emitted to the time when the laser light reflected from the recording face of the information recording medium reaches the semiconductor laser satisfy the condition of R.gtoreq..delta. .nu./.tau.. The periodic function varies to have a sawtooth waveform or a triangular waveform.

    摘要翻译: 公开了一种通过将从单个纵向模式振荡的半导体激光器发射的激光照射到信息记录介质上并通过检测从信息记录介质的记录面反射的激光来光学读取记录信息的方法。 在该方法中,调制激光的光频率,使得调制光频率是依赖于时间的周期函数,周期函数的时间微分系数R(Hz / s)的绝对值,光谱 激光的线宽Δnu(Hz)和从激光发射时到从信息记录介质的记录面反射的激光到达半导体激光器的时刻的时间段τ(s) 满足R> / =Δnu/τ的条件。 周期函数变化具有锯齿波形或三角形波形。

    Semiconductor laser device
    29.
    发明授权
    Semiconductor laser device 失效
    半导体激光器件

    公开(公告)号:US5375135A

    公开(公告)日:1994-12-20

    申请号:US48887

    申请日:1993-04-15

    摘要: A semiconductor laser device includes a substrate and a laminated structure formed on a top face of the substrate. The laminated structure includes (a) first and second guide layers and (b) a quantum well structure of compound semiconductor interposed between the first and second guide layers. The quantum well structure serves as a resonator of the device and includes at least one quantum well layer and at least one barrier layer. The quantum well layer has a thickness L.sub.z and the barrier layer has the energy gap larger than the energy gap of the quantum well layer so as to form a energy difference V.sub.0 between the bottom of the conduction band of the quantum well layer and the bottom of the conduction band of the barrier layer. The relationship represented by formula (I) is satisfied:L.sub.z

    摘要翻译: 半导体激光装置包括基板和形成在基板顶面上的叠层结构。 层压结构包括(a)第一和第二引导层和(b)置于第一和第二引导层之间的化合物半导体的量子阱结构。 量子阱结构用作器件的谐振器,并且包括至少一个量子阱层和至少一个势垒层。 量子阱层具有厚度Lz,势垒层的能隙大于量子阱层的能隙,从而在量子阱层的导带的底部和底部的量子阱层的底部之间形成能量差V0 阻挡层的导带。 满足式(I)所示的关系:Lz

    Semiconductor laser device
    30.
    发明授权
    Semiconductor laser device 失效
    半导体激光器件

    公开(公告)号:US5351258A

    公开(公告)日:1994-09-27

    申请号:US99206

    申请日:1993-07-29

    摘要: A semiconductor laser device of the present invention includes: a semiconductor substrate having a top face and a bottom face; a multi-layered structure formed on the top face of the semiconductor substrate, the multi-layered structure including an active layer; a stripe-shaped ridge portion which is formed on a first region of a top face of the multi-layered structure and which extends along a cavity length direction; a current blocking layer which covers both side faces of the ridge portion and a second region of the top face of the multi-layered structure; a first electrode formed at least on a top face of the ridge portion; and a second electrode formed on the bottom face of the semiconductor substrate, wherein the current blocking layer includes an insulating film and a resin film formed on the insulating film.

    摘要翻译: 本发明的半导体激光器件包括:具有顶面和底面的半导体衬底; 形成在所述半导体衬底的顶面上的多层结构,所述多层结构包括有源层; 形成在所述多层结构的顶面的第一区域上且沿着空腔长度方向延伸的条状的脊部; 覆盖所述脊部的两个侧面的电流阻挡层和所述多层结构的顶面的第二区域; 至少形成在所述脊部的顶面上的第一电极; 以及形成在所述半导体衬底的底面上的第二电极,其中所述电流阻挡层包括绝缘膜和形成在所述绝缘膜上的树脂膜。