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KMID : 1011420170220040417
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Journal of Korean Ophthalmic Optics Society
2017 Volume.22 No. 4 p.417 ~ p.425
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Effects of CCT of LED Lightings and Color Lenses on Color Perception
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Jung Myeong-Chae
Choi Eun-Jung
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Abstract
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Purpose: The study aimed to investigate the effects of the CCT of LED lightings and the color lenses on the color perception.
Methods: A total of 30 participants with the normal color vision (mean age 24.70±1.86 years) were tested the FM 100 hue test under LED lightings of 3,000 K or 6,500 K while wearing four different color glasses. The abilities of color perception were analyzed with the averages of TES(total error score) and ES charts(error score charts) from FM 100 hue test(Farnsworth Munsell 100 hue test).
Results: Regardless of whether color lenses are weared or not, the averages of TES of the FM 100 hue test under LED lighting of either 3,000 K or 6,500 K showed no significant difference statistically. However in comparison to the averages under LED lightings between 3,000 K and 6,500 K, the averages of TES under LED lighting of 6,500 K were found to be significantly larger than those under LED lighting of 3,000 K. According to the ES chart, the values of ES under LED lighting of 6,500 K were larger than those under lightings of 3,000 K in some color segments.
Conclusions: Under LED lighting of either 3,000 K or 6,500 K, because the color lenses of brown, green, red and gray with transmittance of about 50% to 60% did not affect the color perception, it is thought that there is no major problem with prescription and wearing. However it is recommended to pay attention to prescription and wearing since the change of CCT of LED lightings between 3,000 K and 6,500 K affect the color perception. In the case of the FM 100 hue test, the ES chart may be suitable for use as an indicator to clarify the errors of color discrimination in each color that can not be detected by the average of TES.
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KEYWORD
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CCT, LED, Color lens, FM 100 hue test, Color perception
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