Radiation shutter, especially for a laser
    2.
    发明授权
    Radiation shutter, especially for a laser 失效
    辐射快门,特别适用于激光

    公开(公告)号:US4415231A

    公开(公告)日:1983-11-15

    申请号:US293658

    申请日:1981-08-17

    CPC classification number: G02B26/023 G21K1/04 H01S3/106 G02B7/006

    Abstract: The radiation emitted by a radiation source, such as a laser, is substantially prevented from exiting from the radiation source by a shutter in the radiation path. To make the shutter substantially fail-safe, two filter and/or diaphragm systems are switchable into the radiation path in series fashion in that one system is located behind the other system as viewed in the radiation direction. Sensors sense the effective or ineffective position of the respective system. Each system has an actuator for bringing the respective radiation stopping system into or out of the radiation stopping position in response to a control signal provided by the sensor of the respective other system.

    Abstract translation: 基本上防止由辐射源(例如激光器)发射的辐射通过辐射路径中的快门从辐射源射出。 为了使快门基本上是故障安全的,两个过滤器和/或隔膜系统可以以串联方式切换到辐射路径中,因为一个系统位于另一个系统的后面,在辐射方向上看。 传感器感测各个系统的有效或无效的位置。 每个系统具有致动器,用于响应于由相应的其他系统的传感器提供的控制信号,使相应的辐射停止系统进入或离开辐射停止位置。

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