The dissertation considers questions the measurement of light quality parameters of LED luminaires (lamps), including chromaticity, color rendering, flicker of luminous flux, photobiological safety of blue light, as well as indicators of discomfort and disability glare of LED lighting installations.
It is shown that all LEDs in which a phosphor is used to change the color, as well as luminaires (lamps) based on them, have angular unevenness of color parameters. Taking this into account, it is recommended to measure and establish requirements in regulatory documents for luminaires with increased requirements for chromaticity, as the averaged indicators of chromaticity coordinates and correlated color temperature (ССТ), and their values in a certain direction.
It has been experimentally established that for assessing the quality of color rendering, the use of the CRI method gives overestimated values for Ra 90 by more than three units in comparison with the TM-30 methods It is noted that to assess the color rendering of luminaires with increased requirements for the quality of light, it is not enough to use the Ra indicator method, but it is necessary to additionally use modern methods, for example, TM-30.
To increase the accuracy of measuring the depth and index modulation, as well as the stroboscopic effect, the method using an integrating sphere was improved. Temporary requirements for the level of modulation and methods of measuring the parameters of flicker of the luminous flux for the period before the establishment of СІЕ uniform requirements are formulated for LED luminaires.
Based on the dependence on the correlated color temperature of the luminance limit values for the risk group RG1, a simplified method for assessing the blue light hazard group of luminaires (lamps) for general lighting in mass production conditions has been developed.
It is proposed to assessing the corrected unified glare rating (UGR ), which takes into account the non-uniform luminance of LED luminaires, to be carried out using methods that provide for measuring the overall and effective luminance, as well as the coefficient effective area in laboratory conditions, and the background glare and the index of the luminaire position in the lighting installation - in the "field" conditions on the mounted installation. To simplify the assessment of discomfort and disability glare, it is proposed in the technical documentation for the luminaires and in the catalogs of manufacturers to indicate the maximum luminance and the value of the correction factor, which takes into account the non-uniform luminance of this luminaire.
