用视光法计算总光通量的方法研究

Q4 Engineering
Yuri Nakazawa, K. Godo, T. Zama
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引用次数: 0

摘要

随着固态照明等光源变化的增加,用视光法评价光源的发光强度分布和总光通量变得越来越重要。为了减少不确定度,提高视光法计算总光通量的效率,对现有的几种计算方法进行了比较。为了进行比较,用角光计测量了一些发光强度分布不同的白炽灯和LED灯,并用现有的方法计算了它们的总光通量值。对比结果表明,为了减少测量时间和测量不确定度,既要考虑光束扩散角,又要考虑光强分布的细节,需要对角度测量步骤进行优化。为了优化角度测量步长,需要根据光强分布的二阶导数对步长进行调制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation of Calculation Method for Total Luminous Flux with Goniophotometry
As variation of light sources such as Solid State Lighting (SSL) increases, it is becoming more important to evaluate luminous intensity distribution and total luminous fl ux with goniophotometry. To reduce uncertainty and increase effi ciency of total luminous fl ux evaluation with goniophotometry, we compare several existing calculation methods for total luminous fl ux evaluation. For the comparison, some incandescent lamps and LED lamps that differ with regard to luminous intensity distribution have been measured by a goniophotometer, and those total luminous fl ux values have been evaluated using the existing methods. The comparison results show that optimization for the angular measurement step taking into account not only beam spread angle but also details of luminous intensity distribution is required for reducing the measurement time and the measurement uncertainty simultaneously. To optimize the angular measurement step, modulation of the step in accordance with the 2nd derivative of the luminous intensity distribution is required.
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来源期刊
Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)
Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Engineering-Electrical and Electronic Engineering
CiteScore
0.10
自引率
0.00%
发文量
6
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