LED headlamp system
    1.
    发明授权
    LED headlamp system 有权
    LED头灯系统

    公开(公告)号:US08104939B2

    公开(公告)日:2012-01-31

    申请号:US11991013

    申请日:2006-08-23

    IPC分类号: F21V9/00 F21V21/00 F21S8/00

    摘要: A solid-state light source (10) comprising a plurality of LED units (12) arrayed to emit light generally about an axis (14). Each of the LED units (12) can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide (16) is associated with the LED units (12) and has a plurality of input widows (18). Each LED unit (12) faces a respective input window (18) and each window (18) transversely intercepts the axis (14) and receives light from the LED units (12). The input windows (18) lead to a common output window (20) that is axially aligned with the input windows (18). The light guide (16) has smooth sidewalls (22) that extend between the input windows (18) and the output window (20).

    摘要翻译: 一种固态光源(10),包括排列成通常围绕轴线(14)发光的多个LED单元(12)。 每个LED单元(12)可以包括多个LED,例如多达五个。 它们都可以以单一颜色发射,或者可以组合多种颜色以获得特定的效果。 透光导光体(16)与LED单元(12)相关联并且具有多个输入寡子(18)。 每个LED单元(12)面对相应的输入窗口(18),并且每个窗口(18)横向截取轴线(14)并且接收来自LED单元(12)的光。 输入窗口(18)导致与输入窗口(18)轴向对齐的公共输出窗口(20)。 光导(16)具有在输入窗(18)和输出窗(20)之间延伸的平滑侧壁(22)。

    LED headlamp system
    2.
    发明申请
    LED headlamp system 有权
    LED头灯系统

    公开(公告)号:US20090213606A1

    公开(公告)日:2009-08-27

    申请号:US11991013

    申请日:2006-08-23

    IPC分类号: F21S8/10 F21V5/00

    摘要: A solid-state light source (10) comprising a plurality of LED units (12) arrayed to emit light generally about an axis (14). Each of the LED units (12) can comprise a number of LEDs, for example, up to five. They may all emit in a single color or multiple colors can be combined for a specific effect. A light transmissive light guide (16) is associated with the LED units (12) and has a plurality of input widows (18). Each LED unit (12) faces a respective input window (18) and each window (18) transversely intercepts the axis (14) and receives light from the LED units (12). The input windows (18) lead to a common output window (20) that is axially aligned with the input windows (18). The light guide (16) has smooth sidewalls (22) that extend between the input windows (18) and the output window (20).

    摘要翻译: 一种固态光源(10),包括排列成通常围绕轴线(14)发光的多个LED单元(12)。 每个LED单元(12)可以包括多个LED,例如多达五个。 它们都可以以单一颜色发射,或者可以组合多种颜色以获得特定的效果。 透光导光体(16)与LED单元(12)相关联并且具有多个输入寡子(18)。 每个LED单元(12)面对相应的输入窗口(18),并且每个窗口(18)横向截取轴线(14)并且接收来自LED单元(12)的光。 输入窗口(18)导致与输入窗口(18)轴向对齐的公共输出窗口(20)。 光导(16)具有在输入窗(18)和输出窗(20)之间延伸的平滑侧壁(22)。

    Distributed feedback laser for isolator-free operation
    3.
    发明授权
    Distributed feedback laser for isolator-free operation 有权
    分布式反馈激光器,用于无隔离器操作

    公开(公告)号:US06891870B2

    公开(公告)日:2005-05-10

    申请号:US10037461

    申请日:2001-11-09

    摘要: An integrated semiconductor device comprising a laser on a substrate, the laser having an active layer and a current-induced grating, such as a current-injection complex-coupled grating, within a laser cavity producing a single-mode output light signal at high data rates (>622 Mb/sec) in isolator-free operation. The grating has a coupling strength product κL greater than 3, where κ is the coupling coefficient and L is the length of the laser cavity. In certain embodiments, the laser is a distributed feedback (DFB) laser that emits light at a wavelength of about 1.5 μm. The strong current-induced grating prevents mode hopping between multiple degenerate Bragg modes. The laser is also characterized by excellent immunity from optical feedback, and can be operated without an isolator at high data rates.

    摘要翻译: 一种集成半导体器件,其包括在衬底上的激光器,所述激光器具有激活腔内的有源层和电流感应光栅,例如电流注入复耦合光栅,产生高数据下的单模输出光信号 (> 622 Mb / sec)无隔离器操作。 光栅具有大于3的耦合强度乘积kappaL,其中kapp是耦合系数,L是激光腔的长度。 在某些实施例中,激光是发射波长约1.5μm的光的分布反馈(DFB)激光器。 强电流感应光栅防止多个退化布拉格模式之间的模式跳变。 激光器的特征还在于光反馈的优异抗扰度,并且可以在高数据速率下无需隔离器进行操作。