Tuning method of external cavity laser diode, variable wavelength laser module, and program of external cavity laser diode tuning
    1.
    发明授权
    Tuning method of external cavity laser diode, variable wavelength laser module, and program of external cavity laser diode tuning 有权
    外腔激光二极管调谐方法,可变波长激光模块,外腔激光二极管调谐程序

    公开(公告)号:US08023549B2

    公开(公告)日:2011-09-20

    申请号:US12570524

    申请日:2009-09-30

    IPC分类号: H01S3/08

    摘要: A tuning methods of an External Cavity Laser Diode (ECLD), comprises steps of: (1) providing a laser light to a grating so as to tilt the grating to an optical axis of a collimated laser light, (2) adjusting the orientation of the grating relative to the collimated laser light, (3) monitoring singleness of longitudinal mode and optical power of a light emitted from the grating, (4) calculating an orientation of the grating to exhibit intended optical power at which the singleness of longitudinal mode shows at least predetermined value, (5) adjusting the grating orientation or the optical axis of the collimated laser light to the calculated grating orientation.

    摘要翻译: 外部激光二极管(ECLD)的调谐方法包括以下步骤:(1)向光栅提供激光以将光栅倾斜到准直激光的光轴,(2)调整 相对于准直激光的光栅,(3)监测从光栅发射的光的纵向模式和光功率的单一性,(4)计算光栅的取向以显示纵向模式的单一性显示的预期光焦度 至少预定值,(5)将准直激光的光栅方向或光轴调整到所计算的光栅方向。

    Optical device
    2.
    发明授权
    Optical device 有权
    光学装置

    公开(公告)号:US08054735B2

    公开(公告)日:2011-11-08

    申请号:US12224209

    申请日:2007-02-19

    IPC分类号: G11B7/00

    摘要: To provide an optical disc device 1, and similar, equipped with a new mechanism to reduce laser light noise due to optical feedback.In an optical disc device 1 in which a laser diode is driven by a high frequency modulation method, optical feedback is returned to the laser diode at a timing at which the phase of the injected carrier density is within one of the following ranges: (1) equal to or greater than the peak phase of the injected carrier density of the laser diode, and equal to or less than the peak phase of the injected carrier density of the laser diode plus 3π/8 (radians); or (2) equal to or greater than the peak phase of the injected carrier density of the laser diode plus 9π/8 (radians), and equal to or less than the peak phase of the injected carrier density of the laser diode plus 2π (radians).

    摘要翻译: 为了提供一种配备有新机构的光盘装置1,以减少由于光学反馈引起的激光噪声。 在通过高频调制方式驱动激光二极管的光盘装置1中,在注入的载流子密度的相位在以下范围内的时刻将光反馈返回到激光二极管:(1 )等于或大于激光二极管的注入的载流子密度的峰值相位,并且等于或小于激光二极管的注入的载流子密度加上3π/ 8(弧度)的峰值相位; 或(2)等于或大于激光二极管的注入载流子密度加上9&pgr / 8(弧度)的峰值相位,并且等于或小于激光二极管加上2&pgr的注入载流子密度的峰值相位 ; (弧度)。

    Optical Device
    3.
    发明申请
    Optical Device 有权
    光学设备

    公开(公告)号:US20090016201A1

    公开(公告)日:2009-01-15

    申请号:US12224209

    申请日:2007-02-19

    IPC分类号: G11B7/00

    摘要: To provide an optical disc device 1, and similar, equipped with a new mechanism to reduce laser light noise due to optical feedback.In an optical disc device 1 in which a laser diode is driven by a high frequency modulation method, optical feedback is returned to the laser diode at a timing at which the phase of the injected carrier density is within one of the following ranges: (1) equal to or greater than the peak phase of the injected carrier density of the laser diode, and equal to or less than the peak phase of the injected carrier density of the laser diode plus 3π/8 (radians); or (2) equal to or greater than the peak phase of the injected carrier density of the laser diode plus 9π/8 (radians), and equal to or less than the peak phase of the injected carrier density of the laser diode plus 2π (radians).

    摘要翻译: 为了提供一种配备有新机构的光盘装置1,以减少由于光学反馈引起的激光噪声。 在通过高频调制方式驱动激光二极管的光盘装置1中,在注入的载流子密度的相位在以下范围内的时刻将光反馈返回到激光二极管:(1 )等于或大于激光二极管的注入载流子密度的峰值相位,并且等于或小于激光二极管的注入载流子密度加上3pi / 8(弧度)的峰值相位; 或(2)等于或大于激光二极管注入载流子密度的峰值相位加上9pi / 8(弧度),并且等于或小于激光二极管的注入载流子密度加上2pi( 弧度)。

    Fuel shut-off valve
    4.
    发明授权
    Fuel shut-off valve 有权
    燃油切断阀

    公开(公告)号:US08186372B2

    公开(公告)日:2012-05-29

    申请号:US12076864

    申请日:2008-03-25

    IPC分类号: F16K24/04

    摘要: A fuel shut-off valve includes a casing, an ascendable and descendible float, and an upper valve element, which is actuated by the float to open and close connector passage that communicates the inside of fuel tank with the outside, and which includes a valve body and a ring-shaped seat member. The ring-shaped seat member makes a connector bore, which communicates with the connector passage, therein, and includes a base, a holding portion, a seating portion, a lip-shaped portion, and a thin-film-shaped portion. The seating portion opens and closes the connector passage, and defines an opening of the connector bore. The lip-shaped portion seats on and separates away from the float, and defines the other opening of the connector bore. The thin-film-shaped portion is disposed between the base and the lip-shaped portion, and is deformable elastically upon being pressed by the float when the float seats on the lip-shaped portion.

    摘要翻译: 燃料切断阀包括壳体,上升和下降的浮子以及由浮子致动以打开和闭合燃料箱内部与外部连通的连接器通道的上阀元件,其包括阀 身体和环形座椅构件。 环形座构件形成与连接器通道连通的连接孔,包括底座,保持部,底座部,唇形部以及薄膜状部。 座椅部分打开和关闭连接器通道,并且限定连接器孔的开口。 唇形部分位于离开浮子的位置并分离开,并限定连接器孔的另一个开口。 薄膜状部分设置在基部和唇形部分之间,并且当浮子位于唇形部分上时被浮子按压时可弹性变形。

    VEHICLE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND STRUCTURE SYSTEM OF IMAGE PROCESSING SYSTEM
    6.
    发明申请
    VEHICLE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND STRUCTURE SYSTEM OF IMAGE PROCESSING SYSTEM 失效
    车辆,图像处理系统,图像处理方法,图像处理程序,图像处理系统结构系统

    公开(公告)号:US20090284597A1

    公开(公告)日:2009-11-19

    申请号:US11995798

    申请日:2006-07-06

    IPC分类号: G06K9/00 H04N7/18

    摘要: An image processing system and the like capable of recognizing a lane mark in a road image with high accuracy are provided even if a light illumination state on a road surface is partially different. According to the image processing system (100) mounted on a vehicle (10), a color component (Rij, Gij, Bij) of the first pixel (Pij) included in an area (Aij) set in the road image is corrected with reference to a color component (Rik, Gik, Bik) of a second pixel (Pik) in view of a fact that it is highly probable that the color component of the second pixel included in the area along with the first pixel is affected by a shadow or light on the road surface. This reduces the effect of the shadow or light on the road surface and the actual color of a road surface portion corresponding to the first pixel can be sufficiently reflected in the color components (Rij, Gij, Bij) of the first pixel (Pij) and consequently in a feature value (Qij). Therefore, a lane mark (M) and its edge (E) are recognized in the road image on the basis of the feature value (Qij) of each pixel (Pij) in the road image.

    摘要翻译: 即使路面上的光照射状态部分不同,也能够提供能够高精度地识别道路图像中的车道标记的图像处理系统等。 根据安装在车辆(10)上的图像处理系统(100),包括在道路图像中设置的区域(Aij)中的第一像素(Pij)的颜色分量(Rij,Gij,Bij)被校正参考 考虑到与第一像素一起包括在该区域中的第二像素的颜色分量非常可能受到阴影影响的事实,第二像素(Pik)的颜色分量(Rik,Gik,Bik) 或在路面上点亮。 这样可以减小阴影或光线对路面的影响,并且可以将与第一像素对应的路面部分的实际颜色充分地反映在第一像素(Pij)的颜色分量(Rij,Gij,Bij)中,并且 因此在特征值(Qij)中。 因此,基于道路图像中的各像素(Pij)的特征量(Qij),在道路图像中识别车道标记(M)及其边缘(E)。

    Vehicle and lane recognizing device
    9.
    发明申请
    Vehicle and lane recognizing device 有权
    车辆和车道识别装置

    公开(公告)号:US20090118994A1

    公开(公告)日:2009-05-07

    申请号:US11919634

    申请日:2006-06-20

    IPC分类号: G08G1/00

    摘要: A lane recognizing device comprises: an image processing means which performs a process of estimating a lane of a road by processing an image of the road and outputs a result of the process as first lane information; a lane estimating means which performs a process of estimating the lane using a map data of the road and the current position information of a vehicle and outputs a result of the process as second lane information; and an actual lane recognizing means which recognizes an actual lane of the road on the basis of the first lane information and the second lane information. Thereby, even if there is an unpredictable skid mark or road repaired part, it is possible to detect the lane accurately while increasing the opportunities for detecting the lane as much as possible by processing the road image and obtaining the road information and the map data.

    摘要翻译: 车道识别装置包括:图像处理装置,其通过处理道路的图像来执行估计道路的车道的处理,并将处理的结果作为第一车道信息输出; 车道估计装置,其使用道路的地图数据和车辆的当前位置信息执行估计车道的处理,并将处理的结果作为第二车道信息输出; 以及根据第一车道信息和第二车道信息识别道路的实际车道的实际车道识别装置。 因此,即使存在不可预测的滑行标记或道路修理部分,也可以通过处理道路图像并获得道路信息和地图数据,尽可能多地检测车道,同时增加检测车道的机会。

    Vehicle and Lane Mark Recognizer
    10.
    发明申请
    Vehicle and Lane Mark Recognizer 失效
    车辆和车道标识识别器

    公开(公告)号:US20080310679A1

    公开(公告)日:2008-12-18

    申请号:US11918453

    申请日:2006-04-16

    IPC分类号: G06K9/00

    摘要: A vehicle capable of preventing detection of stud-type lane marks from being impossible and a vehicle having a lane mark recognizer are provided. The vehicle includes installation interval recognizing means (21) which recognizes an interval (L) between Botts Dots, vehicle speed recognizing means (22) which recognizes a traveling speed (v) of the vehicle, image synthesizing means (13) which generates synthesized image data (M3) by combining image data (M1) stored in an image memory (11) through an image input circuit (10) and image data (M2) stored in an image memory (12) through the same, imaging timing determining means (20) which determines the timing of imaging by a camera (2) on the basis of the interval (L) and the traveling speed (v) when acquiring the image data (M1, M2) in such a way that the positions of the Botts Dots in the image data (M1, M2) are different therebetween, and Botts Dots detecting means (14) which detects the Botts Dots from the synthesized image data (M3).

    摘要翻译: 提供能够防止螺柱式车道标记的检测不可能的车辆和具有车道标识识别器的车辆。 车辆包括识别出点数之间的间隔(L)的安装间隔识别装置(21),识别车辆的行驶速度(v)的车速识别装置(22),产生合成图像的图像合成装置 数据(M3)通过组合通过图像输入电路(10)存储在图像存储器(11)中的图像数据(M1)和通过其存储在图像存储器(12)中的图像数据(M2),成像定时确定装置 20),其基于当获取图像数据(M1,M2)时的间隔(L)和行进速度(v),以相对于所述图像数据(B)的位置的方式确定摄像机(2)的成像定时 图像数据(M1,M2)中的点不同,以及从合成图像数据(M3)检测Botts点的Botts点检测装置(14)。