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LED Light Improved by an Optical Filter to Visible Solar-Like Light with High Color Rendering

机译：通过光学滤光器改善LED灯，以高色渲染的可见太阳能光线

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In this study, a new, cost-effective, rapid, and easy method to produce a sunlight-like D65 light source from a typical white light-emitting diode (LED) is discussed. The novelty of this method is that the emission spectrum of a typical white LED is measured first, then the reverse spectrum is used to design and fabricate a double-sided multilayer coating filter to set in front of the typical white LED. This can be verified experimentally to improve the color-rendering index of the white LED to 95.8 at the D65 color temperature. The optical thicknesses of the multilayer film are designed at a quarter wavelength. The layer-thickness errors during the deposition process are reduced due to easy monitoring with the turning-point method. By lowering both the cost and level of technology required to produce D65 light sources, in addition to the most direct consequences of increased D65 availability and affordability, the cost and level of technology required for research that heavily utilizes D65 light sources can also be lowered in turn, especially in the fields of clinical science, medicine, and related industries.
机译：在该研究中，讨论了一种从典型的白色发光二极管（LED）产生阳光样D65光源的新的，经济效益，快速和易于方法。该方法的新颖性是首先测量典型的白色LED的发射光谱，然后使用反向光谱来设计和制造双面多层涂覆滤波器，以在典型的白色LED的前面设置。这可以通过实验验证，以改善D65色温下的白色渲染指数为95.8。多层薄膜的光学厚度在四分之一波长下设计。由于随着转折点方法易于监测，沉积过程中的层厚度误差减少。通过降低生产D65光源所需的成本和技术水平，除了增加D65可用性和可负担性的最直接后果，还可以降低大量利用D65光源的研究所需的成本和技术水平转身，特别是在临床科学，医学和相关行业领域。

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