Discharge light and lighting device
A technology for discharge lamps and fluorescent lamps, applied to parts of gas discharge lamps, etc., can solve problems such as deterioration of whiteness, poor visibility, difficulty in distinguishing similar colors, etc., and achieve good discrimination and good whiteness
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[0047] Next, an experiment for obtaining a more satisfactory chromaticity range of a visible light color of a colored object by using light from a low-color-temperature light source will be described sequentially.
[0048] First of all, the color discrimination (recognition) experiment was carried out under different light colors of the light source with the color frequently used in the house as the object. In the experiment, black and navy blue, red, blue, and green were performed using different methods of judging the colors of the color chart as objects by changing the color difference among representative colors frequently used in houses. Etc. easy distinction.
[0049] figure 2 It shows the experimental results of the simple distinction between black and navy blue. It can be seen that if the light color of the light source is on the CIE1960uv chromaticity diagram with the chromaticity point (u, v) = (0.224, 0.330) as the center, the long axis is 0.056, Within the range...
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