研究目的
Comparing the blue light emission produced by fluorescent lamps and the LED light sources for general lighting, using a simplified method based on photometric measurements.
研究成果
The photometric measurement results highlighted the correlation between the blue light hazard efficacy (KBV) and CCT. The simplified method did not enable categorizing the light sources into a risk group smaller than or equal to RG1 'No risk' with certainty for all the analyzed sources. Further investigations with radiometric measurements are required.
研究不足
The simplified method provides approximate results and requires further investigations with radiometric measurements to establish the risk group of each source with higher certainty.
1：Experimental Design and Method Selection:
The study involved a measurement campaign to characterize the artificial optical radiation emitted by LED sources and fluorescent tubes. The simplified method based on photometric measurements was used to assess the blue light hazard.
2：Sample Selection and Data Sources:
Analyzed fluorescent tubes and LED sources widely used in office buildings. The LED sources included tubes and panels with different electric powers and correlated color temperatures (CCTs).
3：List of Experimental Equipment and Materials:
Luxmeter model Radiolux 111, luminance meter model S4, and spectrophotometer model CL-500A were used for measurements.
4：Experimental Procedures and Operational Workflow:
Photometric measurements were conducted in a test chamber to ensure negligible contribution of reflected light. Sources were allowed to warm up before measurements.
5：Data Analysis Methods:
The blue light hazard efficacy (KBV) was calculated to assess the photobiological safety of the sources.
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