Auto-darkening filter of welding shield

    公开(公告)号:US09867737B2

    公开(公告)日:2018-01-16

    申请号:US14725559

    申请日:2015-05-29

    Abstract: An auto-darkening filter of a welding shield has a brightness-sensing unit, an optical shutter and a processor. The brightness-sensing unit generates a first signal or a second signal. In a high-sensitivity mode, the processor controls the optical shutter to operate in a dark state or a bright state depending on intensity of the first signal being higher or lower than a threshold value. In a low-sensitivity mode, the processor controls the optical shutter to operate in the bright state when intensity of the second signal is lower than the threshold value, and automatically change to the high-sensitivity mode from the low-sensitivity mode when intensity of the second signal is higher than the threshold value.

    Detector system and module for compensating dark current
    184.
    发明授权
    Detector system and module for compensating dark current 有权
    用于补偿暗电流的检测器系统和模块

    公开(公告)号:US09407843B2

    公开(公告)日:2016-08-02

    申请号:US14061557

    申请日:2013-10-23

    Abstract: A compensating current is applied at one or more points in a signal processing path to compensate for one or both of a dark or offset current present in an input signal. In certain implementations, the dark or offset current is present in a signal generated by a photomultiplier device. The dark or offset current may be monitored in an output of the signal processing path and, the monitoring being used to determine how much compensation is needed in the signal processing path and to allocate where in the signal processing path the compensation current will be applied.

    Abstract translation: 在信号处理路径中的一个或多个点处施加补偿电流以补偿输入信号中存在的暗或偏移电流中的一个或两个。 在某些实施方案中,暗或偏移电流存在于由光电倍增器装置产生的信号中。 可以在信号处理路径的输出中监视暗或偏移电流,并且监视用于确定在信号处理路径中需要多少补偿并且在信号处理路径中分配补偿电流将被施加的位置。

    Offset current compensation for photodiodes
    185.
    发明授权
    Offset current compensation for photodiodes 有权
    光电二极管偏移电流补偿

    公开(公告)号:US09366566B2

    公开(公告)日:2016-06-14

    申请号:US14284965

    申请日:2014-05-22

    Abstract: A dark photodiode that is optically isolated from the signal photodiode and having a dark current in the absence of photons. A reference generating circuit configured to produce a reference voltage based on voltage at an anode of the signal photodiode. A voltage regulator circuit configured to regulate dark photodiode voltage at an anode of the dark photodiode based on the reference voltage. A current mirror circuit configured to produce, at an anode connecting to the signal photodiode, a mirrored current that is a mirrored version of a portion of the dark current.

    Abstract translation: 与信号光电二极管光学隔离并且在不存在光子时具有暗电流的暗光电二极管。 参考产生电路,被配置为基于信号光电二极管的阳极处的电压产生参考电压。 一种电压调节器电路,被配置为基于参考电压来调节暗光电二极管的阳极处的暗光电二极管电压。 电流镜电路,被配置为在连接到信号光电二极管的阳极处产生作为暗电流的一部分的镜像版本的镜像电流。

    Translucent object presence and condition detection based on detected light intensity
    186.
    发明授权
    Translucent object presence and condition detection based on detected light intensity 有权
    基于检测到的光强度的半透明物体存在和状态检测

    公开(公告)号:US09329304B2

    公开(公告)日:2016-05-03

    申请号:US14199627

    申请日:2014-03-06

    Inventor: Amir A. Norton

    Abstract: In embodiments of object presence and condition detection, a light is emitted that is directed at a first edge of a translucent object to pass through the translucent object, such as a lens. An intensity of the light is detected proximate an opposing, second edge of the translucent object. A presence and/or a condition of the translucent object can then be determined based on the detected intensity of the light that passes through the object. The translucent object can be implemented as a multi-lens array, and a laser light is directed through optic surfaces of the multi-lens array with a laser. The presence and the condition of the multi-lens array can be continuously determined as a safety compliance of the laser light being directed through the multi-lens array.

    Abstract translation: 在物体存在和状态检测的实施例中,发射指向半透明物体的第一边缘的光以穿过诸如透镜的半透明物体。 在半透明物体的相对的第二边缘附近检测光的强度。 然后可以基于检测到的通过物体的光的强度来确定半透明物体的存在和/或条件。 半透明物体可以实现为多透镜阵列,并且激光通过激光被引导到多透镜阵列的光学表面。 可以连续地确定多透镜阵列的存在和状态作为通过多透镜阵列的激光的安全顺应性。

    Sensitivity adjustment device
    187.
    发明授权
    Sensitivity adjustment device 有权
    灵敏度调节装置

    公开(公告)号:US09247171B2

    公开(公告)日:2016-01-26

    申请号:US14028096

    申请日:2013-09-16

    Abstract: A sensitivity adjustment device may include: a light receiver configured to receive a reflected light that has been emitted from a light emitting unit and reflected by a reflector, the light receiver being configured to convert the reflected light into an analog electrical signal; an A/D converter configured to convert the analog electrical signal into a digital signal; a threshold value calculator configured to calculate a threshold value with reference to a voltage level of the digital signal that has been sequentially converted and output by the A/D converter; and a determination unit configured to compare a high voltage level of the digital signal with the threshold value.

    Abstract translation: 灵敏度调节装置可以包括:被配置为接收从发光单元发射并被反射器反射的反射光的光接收器,所述光接收器被配置为将所述反射光转换为模拟电信号; A / D转换器,被配置为将模拟电信号转换为数字信号; 阈值计算器,被配置为参考由A / D转换器顺次转换并输出的数字信号的电压电平来计算阈值; 以及确定单元,被配置为将数字信号的高电压电平与阈值进行比较。

    Light sensing apparatus and adjustment method thereof
    188.
    发明授权
    Light sensing apparatus and adjustment method thereof 有权
    光感测装置及其调整方法

    公开(公告)号:US09182277B2

    公开(公告)日:2015-11-10

    申请号:US13714652

    申请日:2012-12-14

    Abstract: A light sensing apparatus includes a light sensing module, a signal conversion module and a processing module. The light sensing module is configured to output a first and second sense signals according to a light intensity emitting thereon. The signal conversion module is electrically coupled to the light sensing module and configured to receive the first and second sense signals and output a sense value according to a relative difference between the first and second sense signals, The comparison module is electrically coupled to the signal conversion module and configured to adjust a light sensing characteristic of the light sensing module according to the sense value so as to adjust a light sensing characteristic of the light sensing module. An adjustment method for a light sensing apparatus is also provided.

    Abstract translation: 光感测装置包括光感测模块,信号转换模块和处理模块。 光感测模块被配置为根据在其上发射的光强度输出第一和第二感测信号。 信号转换模块电耦合到光感测模块并且被配置为接收第一和第二感测信号,并根据第一和第二感测信号之间的相对差输出感测值。比较模块电耦合到信号转换 模块,并且被配置为根据感测值调整光感测模块的光感测特性,以便调节光感测模块的光感测特性。 还提供了一种用于光感测装置的调节方法。

    SYSTEM FOR FIELD MEASUREMENT AND CALIBRATION OF PHOTOVOLTATIC REFERENCE DEVICES
    190.
    发明申请
    SYSTEM FOR FIELD MEASUREMENT AND CALIBRATION OF PHOTOVOLTATIC REFERENCE DEVICES 有权
    光伏参考装置的场测量和校准系统

    公开(公告)号:US20150308889A1

    公开(公告)日:2015-10-29

    申请号:US14114118

    申请日:2013-04-18

    Abstract: A system for field measurement and calibration of photovoltaic reference devices, including a reference device electronics unit that measures the electrical output of a photovoltaic reference module and provides data to determine the solar irradiance received by the reference module as a function of its electrical output; and a calibrator unit that is used to routinely recalibrate the reference device electronics unit and the reference module, wherein the calibrator unit contains one or more calibrated photovoltaic reference cell(s).

    Abstract translation: 一种用于光伏参考设备的现场测量和校准的系统,包括参考设备电子单元,其测量光伏参考模块的电输出并且提供数据以确定由参考模块接收的太阳辐照度作为其电输出的函数; 以及校准器单元,其用于常规地重新校准参考装置电子单元和参考模块,其中校准器单元包含一个或多个校准的光伏参考单元。

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