Method of measuring circularity of an optical fiber
    1.
    发明授权
    Method of measuring circularity of an optical fiber 有权
    测量光纤圆度的方法

    公开(公告)号:US07110657B1

    公开(公告)日:2006-09-19

    申请号:US11066847

    申请日:2005-02-23

    IPC分类号: G02B6/00

    CPC分类号: G02B6/4226 G02B6/4227

    摘要: Distortion introduced by an imaging system is characterized by positioning a generally cylindrical object and imaging optics in a first relative angular position about an axis of rotation that substantially coincides with the longitudinal axis of the object and employing the imaging optics to image the end face of the object on a detector. First and second definitions of the shape of the image of the periphery of the end face of the object are extracted from image data provided by the detector when the object and the imaging optics are in first and second relative angular positions. The first and second definitions are compared.

    摘要翻译: 由成像系统引入的失真的特征在于将大致圆柱形的物体和成像光学器件定位在围绕旋转轴线的第一相对角位置,该第一相对角度位置基本上与物体的纵向轴线重合,并且使用成像光学元件来对成像系统的端面进行成像 物体在检测器上。 当物体和成像光学器件处于第一和第二相对角位置时,从检测器提供的图像数据中提取物体端面周边图像的形状的第一和第二定义。 比较第一和第二个定义。

    Optical fiber test instrument with mechanically positioned attenuator
    2.
    发明授权
    Optical fiber test instrument with mechanically positioned attenuator 失效
    具有机械定位衰减器的光纤测试仪器

    公开(公告)号:US5589933A

    公开(公告)日:1996-12-31

    申请号:US328832

    申请日:1994-10-24

    摘要: An optical test instrument, for testing response of an optical medium to optical energy, comprises a light source for emitting optical energy in response to electrical energy, a detector for providing an electrical output signal in response to incident optical energy, and a propagation path for delivering optical energy from the light source to the medium under test and for delivering optical energy from the medium under test to the detector. A positioning mechanism displaces an optical attenuator element between a first position, in which it is out of the propagation path, and a second position, in which it is interposed in a segment of the path in which the optical energy is propagated as a beam.

    摘要翻译: 用于测试光介质对光能的响应的光学测试仪器包括用于响应于电能发射光能的光源,用于响应于入射光能提供电输出信号的检测器,以及用于 将光能从光源传递到被测介质,并将光能从被测介质输送到检测器。 定位机构将光衰减器元件置于其离开传播路径的第一位置和第二位置之间,在第二位置处,光衰减器元件插入光路传播的路径段中。

    Method of measuring concentricity of an optical fiber
    3.
    发明授权
    Method of measuring concentricity of an optical fiber 有权
    测量光纤同心度的方法

    公开(公告)号:US06421118B1

    公开(公告)日:2002-07-16

    申请号:US09643146

    申请日:2000-08-21

    申请人: Casey S. Shaar

    发明人: Casey S. Shaar

    IPC分类号: G01N2100

    CPC分类号: G01M11/088 G01M11/33

    摘要: Concentricity of an optical fiber segment is determined by positioning the fiber segment with its central axis substantially coinciding with an axis of rotation, the fiber segment being in a first angular position about the axis of rotation, imaging the end face of the fiber on a detector, and measuring the location of the image of the center of the core relative to the location of the image of the center of the cladding in the first angular position. The fiber segment is then rotated about the axis of rotation to a second angular position and the location of the image of the center of the core relative to the location of the image of the center of the cladding in the second angular position is measured. The fiber segment is again rotated about the axis of rotation to a third angular position and the location of the image of the center of the core relative to the image of the center of the cladding in the third angular position is measured. The radius of the circle that circumscribes the locations of the image of the center of the core relative to the image of the center of the cladding is then calculated.

    摘要翻译: 光纤段的同心度是通过将光纤段的中心轴线基本上与旋转轴线重合的方式来定位的,光纤段围绕旋转轴线处于第一角度位置,在探测器上成像光纤的端面 ,并且相对于第一角位置中的包层的中心的图像的位置来测量芯的中心的图像的位置。 然后将纤维段绕旋转轴线旋转到第二角度位置,并且测量芯的中心的图像相对于在第二角位置中的包层中心的图像的位置的位置。 纤维段再次围绕旋转轴旋转到第三角度位置,并且测量芯的中心的图像相对于包层在第三角度位置的中心的图像的位置。 然后计算围绕芯的中心的图像相对于包层的中心的图像的位置的圆的半径。

    Method and apparatus for determining cleave end angle of an optical fiber
    4.
    发明授权
    Method and apparatus for determining cleave end angle of an optical fiber 失效
    用于确定光纤的切割端角的方法和装置

    公开(公告)号:US5140167A

    公开(公告)日:1992-08-18

    申请号:US614193

    申请日:1990-11-14

    IPC分类号: G01B11/26 G01M11/00

    CPC分类号: G01M11/31 G01B11/26

    摘要: A method of testing a length section of optical fiber in order to determine whether the angle between an end face of the length section and a plane perpendicular to a longitudinal axis of the length section of optical fiber is within a predetermined range, comprises positioning the length section of optical fiber so that its longitudinal axis substantially coincides with the optical axis of a camera, selecting at least two test regions on the end face of the fiber, adjusting the position of at least one of a camera, a lens and the length section of optical fiber to focus each of the test regions on the sensing surface of the camera, and comparing the adjustments performed in the preceding step for the two test regions respectively.

    摘要翻译: 一种测试光纤的长度部分以便确定长度部分的端面与垂直于光纤的长度部分的纵向轴线的平面之间的角度是否在预定范围内的方法,包括将长度 使得其纵向轴线基本上与相机的光轴重合,在光纤的端面上选择至少两个测试区域,调整相机,透镜和长度部分中的至少一个的位置 的光纤将每个测试区域聚焦在相机的感测表面上,并分别比较两个测试区域的前一步骤中进行的调整。

    Optical router with optical control
    5.
    发明授权
    Optical router with optical control 失效
    带光学控制的光路由器

    公开(公告)号:US5539560A

    公开(公告)日:1996-07-23

    申请号:US349315

    申请日:1994-12-05

    IPC分类号: H04J14/08 H04J14/02

    CPC分类号: H04J14/08

    摘要: An optical multiplexer comprises a signal energy divider, such as a directional coupler, for dividing optical signal energy received by way of a multiplexer upstream port into a control portion and a utilization portion, and an optical switch having a first switch port connected to receive the utilization portion of the optical signal energy and having a plurality of additional switch ports connected to repsecive multiplexer downstream ports. A decoder extracts a control message from the control portion of the optical signal energy, and a controller is responsive to the control message for selectively setting the switch to interconnect the first switch port and a selected one of the additional switch ports. In this manner, at least part of the utilization portion of the optical signal energy received by the multiplexer by way of the multiplexer upstream port is emitted from the multiplexer by way of the multiplexer downstream port that is connected to the selected one of the additional switch ports.

    摘要翻译: 光复用器包括诸如定向耦合器的信号能量分配器,用于将通过多路复用器上行端口接收的光信号能量分成控制部分和利用部分;以及光开关,具有连接以接收 利用部分的光信号能量并且具有多个附加的开关端口连接到备用多路复用器下游端口。 解码器从光信号能量的控制部分提取控制消息,并且控制器响应于控制消息,用于选择性地设置交换机以使第一交换机端口和所选择的附加交换机端口互连。 以这种方式,由多路复用器通过多路复用器上行端口接收的光信号能量的至少一部分利用部分通过多路复用器下游端口从多路复用器发射,多路复用器下游端口连接到所选择的附加开关 港口。

    Method and apparatus for coupling optical fibers comprises digitizing
the image of fields of view
    6.
    发明授权
    Method and apparatus for coupling optical fibers comprises digitizing the image of fields of view 失效
    用于耦合光纤的方法和装置包括数字化视野图像

    公开(公告)号:US5375179A

    公开(公告)日:1994-12-20

    申请号:US147047

    申请日:1993-11-02

    IPC分类号: G02B6/38 G02B6/26

    CPC分类号: G02B6/3803

    摘要: A method of aligning first and second substantially parallel rod-form elements, such as optical fibers, comprises placing the first element at a position at which it is approximately aligned with the second element and is in the fields of view of two imaging systems that have respective axes that are oblique to each other and to the central axes of the two rod-form elements, and digitizing at least a part of the image of each field of view. The digital data is analyzed to determine location of the first element in each field of view, and relative displacement of the first and second elements is brought about accordingly.

    摘要翻译: 将第一和第二基本上平行的棒状元件(例如光纤)对准的方法包括将第一元件放置在其与第二元件大致对准的位置处,并且处于两个成像系统的视场中,该两个成像系统具有 各个轴彼此相对倾斜并且与两个杆形元件的中心轴线相对应,并且对每个视场的图像的至少一部分进行数字化。 分析数字数据以确定每个视场中的第一元素的位置,并且相应地产生第一和第二元素的相对位移。