During the measurement of spectral luminous efficiency function \(V\left( \lambda \right)\), monochromatic visual stimuli of higher luminance can be obtained by narrow band optical filters with broad band light sources, compared to monochromators. However, the distortion of \(V\left( \lambda \right)\) is inevitably caused due to the bandwidth of the optical filters. In this paper, the effect of optical filters and light source spectra on the spectral luminous efficiency function \(V\left( \lambda \right)\) measurement is studied. Filters with different spectral transmittances and light sources with different spectral power distributions are considered in the model to simulate visual sensitivity experiment. Compared with real \(V\left( \lambda \right)\), the distortion of the simulated \(V\left( \lambda \right)\) caused by the bandwidth of filters is quantitatively evaluated with the aid of a quality indicator, mismatch error \(f'\). Results and conclusions in this paper can be used as a guide to optimize the design of the visual sensitivity experiments for \(V\left( \lambda \right)\) measurement.

中文翻译：

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滤光片和光源光谱对光谱发光效率函数测量的影响

在光谱发光效率函数\（V \ left（\ lambda \ right）\）的测量过程中，与单色仪相比，具有宽带光源的窄带滤光片可以获得更高亮度的单色视觉刺激。但是，由于滤光器的带宽，不可避免地引起\（V \ left（\ lambda \ right）\）的失真。本文研究了滤光片和光源光谱对光谱发光效率函数\（V \ left（\ lambda \ right）\）测量的影响。在模型中考虑了具有不同光谱透射率的滤光片和具有不同光谱功率分布的光源，以模拟视觉灵敏度实验。与真实相比\（V \ left（\ lambda \ right）\），借助于质量指标定量评估由滤波器的带宽引起的模拟\（V \ left（\ lambda \ right）\）的失真错误\（f'\）。本文的结果和结论可作为优化\（V \ left（\ lambda \ right）\）测量的视觉灵敏度实验设计的指南。