LED lighting quality evaluation method and system based on subjective and objective experimental data

A technology of LED lighting and experimental data, which is applied in the direction of testing optical properties, can solve problems such as inapplicability, and achieve the effects of convenient implementation, guaranteed evaluation accuracy, and guaranteed scientificity

Inactive Publication Date: 2018-05-15
WUHAN UNIV
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AI Technical Summary

Problems solved by technology

[0007] However, because the evaluation of LED lighting quality is greatly affected by factors such as observers' subjective differences and lighting quality evaluation angles, existing methods often have serious inapplicability in current diversified lighting applications.

Method used

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  • LED lighting quality evaluation method and system based on subjective and objective experimental data
  • LED lighting quality evaluation method and system based on subjective and objective experimental data

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Experimental program
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Effect test

Embodiment 2

[0073] Each observer's subjective score mean S in each group of experiments in embodiment 2):

[0074] 2500K: 2.35; 3500K: 3.38; 4500K: 3.78; 5500K: 3.15; 6500K: 2.49.

Embodiment 5

[0075] Embodiment 5) in multivariate nonlinear fitting subjective score mean value S ’ :

[0076] 2500K: 2.37; 3500K: 3.45; 4500K: 3.76; 5500K: 2.81; 6500K: 2.72.

[0077] For specific implementation, this step can refer to the implementation of the prior art of multivariate nonlinear fitting.

[0078] 6) For any luminescent sample to be evaluated, perform the same treatment according to 3) and 4) (that is, measure the spectral power distribution with a spectroradiometer, intercept the data in the visible wavelength range, and calculate the corresponding color gamut area index GAI , Full Spectrum Index FSCI and Color Quality Index CQS), through the correlation model constructed in 5), the estimated value of the corresponding subjective psychophysical score can be obtained, and the characterization of the lighting quality of the light source can be realized.

[0079] In order to further verify the feasibility of the present invention, the embodiment selects four groups of lig...

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Abstract

A method and system for evaluating LED lighting quality based on subjective and objective experimental data, including inputting subjective experimental data obtained by using preset LED lighting evaluation angles for luminous samples, and counting the mean value of subjective scores of each group of luminous samples; For the sample, measure the spectral power distribution with a spectroradiometer, intercept the data in the visible wavelength range, and calculate the objective evaluation index; through the multivariate nonlinear fitting method, construct the relationship between the mean value of the subjective score and the corresponding objective evaluation index under different luminous sample conditions For the luminescent sample to be evaluated, measure its spectral power distribution with a spectroradiometer, intercept the data in the visible wavelength range, calculate the objective evaluation index, and obtain the corresponding score estimation value according to the correlation model, so as to realize the characterization of the lighting quality of the light source. The invention provides a flexible and pertinent LED lighting quality evaluation method, which can guarantee the evaluation accuracy and is easy to implement.

Description

technical field [0001] The invention belongs to the technical field of LED intelligent lighting, and in particular relates to a method and system for evaluating the quality of LED lighting based on subjective and objective experiments. Background technique [0002] LED light sources have the advantages of high luminous efficiency, long service life, energy saving and environmental protection, adjustable light intensity, etc., and have better color rendering effects, so they are increasingly popular in the field of general lighting. Among them, how to quantitatively evaluate the lighting quality of LED light sources scientifically and rationally is a hot issue in the field of lighting at this stage. The International Commission on Illumination (CIE) defines the color rendering of a light source as "the effect of a certain light source on the color appearance of an object compared with a reference standard illuminant", and sets and recommends the color rendering index CRI (Col...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01M11/02
Inventor刘强万晓霞彭小曼熊伟斌王琪卫然黄政梁金星
OwnerWUHAN UNIV