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首页> 外文会议>24th Session of the CIE (Commission Internationale De L'eclairage) Vol.1 Pt.1 Jun 24-30, 1999 Warsaw >THE INFLUENCE OF THE DIFFUSING ELEMENT OF THE ILLUMINANCE METER UPON THE ERRORS OF THE SPECTRAL CORRECTION
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THE INFLUENCE OF THE DIFFUSING ELEMENT OF THE ILLUMINANCE METER UPON THE ERRORS OF THE SPECTRAL CORRECTION

机译：照度计的扩散元素对光谱校正误差的影响

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摘要

In commonly used measurers of the illuminance it is the diffuser that is used as the element for the cosine correction of the photometric head. Due to the fact that the diffusing element is, to some extent, spectrally selective its characteristic of the spectral coefficient of transmission τ_λ depends upon the luminous flux angle of incidence on the diffuser. The change in the character of the spectral characteristic of transmission influences upon the diffusion of the spectral correction f_1 and f_1' of the photometric head of the illuminance meter. These errors have been calculated for different sources of light in the function of the angle of incidence at which the light upon the photometric head of the illuminance meter.
机译：在常用的照度测量仪中，漫射器用作光度头的余弦校正的元素。由于漫射元件在某种程度上具有光谱选择性，因此其透射光谱系数τ_λ的特性取决于漫射器上的光入射角。透射光谱特性的特征变化影响照度计的光度计的光谱校正f_1和f_1'的扩散。这些误差是针对不同光源的入射角计算得出的，该入射角是照度计光度头上的光线入射角的函数。

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