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

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: 2015-12-09
WUHAN UNIV
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  • Application Information

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

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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

The invention provides an LED lighting quality evaluation method based on objective and subjective experiment data and a system. The method comprises the steps that subjective experiment data acquired from a preset LED lighting evaluation angle for light emitting samples are input; the subjective score mean of each group of light emitting sample is counted; for each group of light emitting sample, a spectroradiometer is used to measure spectral power distribution; data in a visible wavelength range are intercepted; objective evaluation indicators are calculated; a multiple nonlinear fitting method is used to construct an association model between the subjective score mean and a corresponding objective evaluation indicator under different light emitting sample conditions; for a light emitting sample to be evaluated, the spectroradiometer is used to measure the spectral power distribution; the data in the visible wavelength range are intercepted; the objective evaluation indicator is calculated; a corresponding score estimation value is acquired based on the association model; and the lighting quality of a light source is characterized. The LED lighting quality evaluation method provided by the invention has the advantages of flexible and targeted use, accurate evaluation and easy implementation.

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 & Authority Applications(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
Owner WUHAN UNIV
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