Wireless Controlled Wide Range Tuneable CCT Lighting System Using Three Component Colour Mixing

IF 0.3 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Light & Engineering Pub Date : 2021-12-01 DOI:10.33383/2020-077

Basudeb Das, Tapas Maity, S. Mazumdar

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Abstract

This paper proposes a novel approach of wireless controlled, tenable correlated colour temperature (CCT) lighting system with high colour rendering index (CRI) using the concept of colour mixing. Using Grassmann’s colour mixing theory, phosphor coated warm white LED source (CCT 2800 K) is mixed with the blue and green LED light sources to meet the requirement of high CRI and high value of red object identification parameter R9. A detailed mathematical formulation is derived for easy controlling of variable CCT and illuminance and a flowchart of wireless control scheme is incorporated and experimentally validated in this article. As a result, the locus of the blended light source is very close to the Planckian locus on CIE1931 chromaticity diagram with a minimum uv D value of +0.0005. This proposed system provides a very wide range CCT starting from 2800 K to 15000 K with a high CRI value of 94 at CCT 5000 K. Another feature of this blended light source is the true colour identification parameter of red object (R9), which is also increased to 93 at CCT 8000 K. This system has very wide application in industries like textile, food processing etc., in museum, art gallery, and medical application like surgical lighting for its high CRI and R9 value with wide range of CCTs.

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无线控制宽范围可调谐CCT照明系统使用三组分混色

本文提出了一种基于混色概念的无线控制、可靠的高显色指数相关色温(CCT)照明系统的新方法。利用Grassmann的混色理论，将涂有荧光粉的暖白光LED光源(CCT 2800 K)与蓝光、绿光LED光源混合，以满足高显色指数和高红色物体识别参数R9值的要求。为了便于控制可变CCT和照度，推导了详细的数学公式，并结合了无线控制方案流程图，并进行了实验验证。因此，混合光源的轨迹非常接近CIE1931色度图上的普朗克轨迹，最小uv D值为+0.0005。该系统提供了一个非常宽的CCT范围，从2800 K到15000 K，在CCT 5000 K时，CRI值高达94。该混合光源的另一个特点是对红色物体的真色识别参数(R9)，在CCT 8000 K下也提高到93。该系统具有高CRI和R9值，cct范围广，在纺织，食品加工等行业，博物馆，艺术画廊和医疗应用，如手术照明中有着非常广泛的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Light & Engineering ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

1.00

自引率

50.00%

发文量

审稿时长

1 months

期刊介绍： Our magazine develops comprehensive communication within the lighting community, providing opportunities for discussion and free expression of opinions of specialists of different profiles; contributes to the convergence of science and engineering practice, the search for opportunities for the application of research results in lighting and technological applications of light; keeps the scientific community up to date with the latest advances in the theory of the light field, providing readers with operational professional information; initiates international cooperation, promotes and distributes the results of Russian authors in the international professional community; provides equal opportunities for authors from different regions of Russia and other countries. The journal publishes articles in the following areas: visual and non-visual effects of radiation on humans; light field theory; photometry and colorimetry; sources of light; ballasts; light devices, their design and production technology; lighting and irradiation installation; light signaling; methods of mathematical modeling of light devices and installations; problems of energy saving in lighting, installation and operation of lighting installations; modern production technologies of lighting products for lighting control systems; innovative design solutions; innovations in lighting and lighting design; the study of the effect on plants and animals, problems of using light in medicine; problems of disinfection of premises, water and smell elimination with the help of technology of UV radiation using; problems of light in the ocean and space.