Linear translation switch with optical fibers
    1.
    发明授权
    Linear translation switch with optical fibers 失效
    带光纤的线性平移开关

    公开(公告)号:US4854660A

    公开(公告)日:1989-08-08

    申请号:US217907

    申请日:1988-07-12

    IPC分类号: G02B26/08 G02B6/35

    摘要: An optical switch for switching the light output of one optical fiber into another optical fiber is disclosed. The optical switch includes an imaging system having a symmetry such as a spherical reflector. The switch also includes a group of optical fiber end faces including a first optical fiber end face via which light is transmitted to the imaging system and second and third fiber end faces. A translation mechanism is provided for linearly translating the group of fiber end faces and imaging system relative to one another between a first position in which the light from the first fiber end face is imaged by the imaging system into the second fiber end face and a second position in which light from the first fiber end face is imaged by the imaging system into the third fiber end face. The switch may be used to selectively remove a node from a fiber optic network having a ring like configuration.

    LED and PIN diode characterization by producing a schematic profile of
relative intensities
    3.
    发明授权
    LED and PIN diode characterization by producing a schematic profile of relative intensities 失效
    LED和PIN二极管表征通过产生相对强度的示意图

    公开(公告)号:US4808816A

    公开(公告)日:1989-02-28

    申请号:US120266

    申请日:1987-11-13

    IPC分类号: G01R31/265 H01J5/16 H01J40/14

    CPC分类号: G01R31/2656

    摘要: A method and apparatus for characterizing light emitting diodes (10) and PIN diodes (100) for coupled power degradation with varying offset is disclosed. An optical-electronic device such as a light emitting diode (10) or PIN diode (100) is scanned by an optical fiber (20) to obtain the output intensity of the LED (10) or the detection sensitivity of the PIN diode (100) as a function of position.

    摘要翻译: 公开了用于表征发光二极管(10)和PIN二极管(100)的方法和装置,用于耦合功率劣化并且具有变化的偏移。 诸如发光二极管(10)或PIN二极管(100)的光电子器件被光纤(20)扫描以获得LED(10)的输出强度或PIN二极管(100)的检测灵敏度 )作为位置的函数。