研究目的
To investigate the effect of color rendering on dark adaptation at tunnel entrances, which has been rarely studied so far. The results showed that high CRI2012 can improve the dark adaptation at the tunnel entrance and reduce the reaction time of drivers. LEDs with high CRI2012 are recommended for tunnel entrances.
研究成果
High CRI2012 can improve the dark adaptation at the tunnel entrance and reduce the reaction time of drivers. LEDs with high CRI2012 are recommended for the lighting of tunnel entrances. The effect of target color on reaction time was greater than that of color rendering. Yellow, silver, and white can provide shorter reaction times, while red and brown lead to longer reaction times.
研究不足
1. The small sample size may lead to deviation of data regularity and affect the accuracy of the results.
2. Although the experimental environment represents a real environment to the greatest extent, the differences between the two are difficult to assess.
1：Experimental Design and Method Selection:
The dark adaptation phenomenon was simulated in the laboratory using four CRI2012s, three color temperatures, and eight colored targets. The reaction time of subjects was measured to indicate the degree of dark adaptation.
2：Sample Selection and Data Sources:
Twenty-five subjects with normal vision participated in the study. The experiment used LEDcube and high power LED (HP-LED) to simulate different light sources.
3：List of Experimental Equipment and Materials:
LEDcube, HP-LED, CS2000 spectroradiometer (Konica Minolta, Tokyo, Japan), Landolt chart ('C' visual chart) with eight colors.
4：Experimental Procedures and Operational Workflow:
Subjects observed targets under different lighting conditions, and their reaction times were recorded when they identified the orientation of the target 'C' after a change in brightness.
5：Data Analysis Methods:
The reaction times were analyzed to determine the effect of color rendering and color temperature on dark adaptation.
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