Correlated color temperature and color rendering index analysis method of light source

A technology of correlated color temperature and color rendering index, applied in the direction of testing optical performance, etc., can solve the problems of high professional and technical requirements of personnel, low degree of automation, unfavorable online monitoring of light source manufacturers, etc., to simplify the measurement system and reduce the professional and technical requirements of personnel. , the effect of high degree of automation

Active Publication Date: 2017-06-20
SILKWORM COCOON RES GROUP CHINESE INST OF TEST TECH
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Problems solved by technology

The accuracy and reliability of the method stipulated in the national standard are very good, but the measurement and calculation process is complicated, the professi

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  • Correlated color temperature and color rendering index analysis method of light source
  • Correlated color temperature and color rendering index analysis method of light source
  • Correlated color temperature and color rendering index analysis method of light source

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Dozens of representative light sources with known correlated color temperature and color rendering index are used as standard samples, and the irradiance spectrum of each light source in the (200-780) nm wavelength range is collected by a spectrometer, and standardized and screened. Then, a stepwise multiple linear regression (SMLR) model was established between the spectral matrix of the standard sample set and the corresponding correlated color temperature and color rendering index, and was optimized. Complete the collection and processing of the irradiance spectrum of the measured light source with reference to the standard sample, and use the established SMLR model to simultaneously test the correlated color temperature and color rendering index. figure 1 The process flow of the method is shown, and the specific steps are as follows:

[0026...

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Abstract

The invention discloses a correlated color temperature and color rendering index analysis method of a light source. Different types of light sources in which correlated color temperature and color rendering index are known and the range covers the types, correlated color temperatures and color rendering indexes of a light source to be measured serve as reference light sources; irradiance spectra of the reference light sources are measured, standard format processing is carried out on spectral data, and a spectral matrix of the reference light sources is obtained; a gradual multivariate linear regression analysis model is established between the spectral matrix of the reference light sources and corresponding correlated color temperatures and color rendering indexes; an irradiance spectrum of the light source to be measured is measured, standard format processing is carried out on spectral data, and a spectral matrix of the light source to be measured is obtained; and an analysis-model dependent variable corresponding to spectra data in the spectral matrix of the light source to be measured is substituted into the analysis model, and analysis values of the correlated color temperature and color rendering index of the light source to be measured are obtained. The method needs not to measure a standard test color and a standard illumination body, and is simple in process, high in automatic degree and high in test efficiency.

Description

technical field [0001] The invention relates to the technical field of light source parameter detection, in particular to a method for analyzing the correlated color temperature and color rendering index of a light source. Background technique [0002] With the continuous advancement of lighting technology, the quality of lighting has received increasing attention and attention to human health and safety. LED lamps and fluorescent lamps have become mainstream light sources for indoor use. Studies have shown that their correlated color temperature and color rendering index are closely related to their lighting quality and biological safety. my country's "Architectural Lighting Design Standards" (GB 50034-2013) also made clear requirements for the correlated color temperature and color rendering index of light sources for architectural lighting, and passed the "Lighting Measurement Methods" (GB / T 5700-2008) stipulated corresponding measurement method. The accuracy and reliabi...

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Application Information

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IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 孙登峰侯晓妮
Owner SILKWORM COCOON RES GROUP CHINESE INST OF TEST TECH
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