Method for color temperature calibration of tungsten
    1.
    发明授权
    Method for color temperature calibration of tungsten 失效
    TUNGSTEN颜色温度校准方法

    公开(公告)号:US3856405A

    公开(公告)日:1974-12-24

    申请号:US43658174

    申请日:1974-01-25

    Applicant: US ARMY

    Inventor: LAZARUS M

    CPC classification number: G01J5/601

    Abstract: A standard tungsten filament lamp of known color temperature, operating at its standard filament voltage, is successively viewed by a photometer device comprising a series of radiation sensors, each responsive to a different segment of the spectral output of the lamp and shunted by a variable resistor, with the series connected to a display device capable of simultaneously displaying a series of time-sequential voltage signals. The variable resistors are adjusted for equal output, or straight line response, on the screen of the display device. Then, a tungsten filament lamp of unknown color temperature is substituted for the standard lamp, without changing the resistor adjustments, and the filament voltage of the lamp is adjusted to produce another straight line response on the display device screen, not necessarily at the same amplitude as for the standard lamp. Under these conditions the unknown lamp is operating at the same color temperature as the standard lamp.

    Abstract translation: 以标准灯丝电压工作的已知色温的标准钨丝灯依次由包括一系列辐射传感器的光度计装置观察,每个辐射传感器响应于灯的光谱输出的不同部分并由可变电阻器分流 该串联连接到能够同时显示一系列时序电压信号的显示装置。 在显示设备的屏幕上调节可变电阻器的相等输出或直线响应。 然后,将未知色温的钨丝灯替代标准灯,而不改变电阻器调节,并且调节灯的灯丝电压以在显示装置屏幕上产生另一直线响应,而不一定以相同的幅度 对于标准灯。 在这些条件下,未知灯的工作温度与标准灯相同。

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