Abstract
Light-emitting diodes (LEDs) are widely used for backlighting text indicators in vehicles. It is desirable that such text indicators have high legibility and low fatigue-inducing qualities. Suitable spectral distributions for text presentation in vehicles have not yet been clarified. This study examined legibility and fatigue when participants read Japanese sentences presented through backlight emission for 10 min in a dark room. The backlight indicators employed four type of white LEDs. The participants were asked to answer questionnaires to evaluate legibility and fatigue. Moreover, the critical fusion frequency and brain activity were measured to evaluate fatigue objectively. The questionnaire results show that all colored backlighting displayed almost an equal legibility. The overall result suggests that participants were most and least fatigued when viewing text illuminated by high color-rending and greenish white backlighting, respectively. Thus, fatigue can be reduced using LEDs with different spectral distributions.
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References
Kubo, C., Yabuta, Y., Yamada, K., Ayama, M.: Effect of spectral radiant distribution of lighting on visual fatigue. J. Illuminat. Eng. Institute Jap. 98(2), 79–86 (2014)
Kajimoto, O., Shiraichi, Y., Kuriyama, A., Ohtsuka, M., Kadowaki, T., Sugino, T.: Effects of Newly developed LED lighting on living comfort in an indoor environment (part 3). Japanese J. Complemen. Alternat. Med. 10(1), 25–37 (2013)
Kato, G., Kuno, S. and Yoshida, Y.: A study on the comparison between LED and fluorescent lights for lecture rooms of the university. In: Proceedings of Tokai Chapter Architectural Research Meeting, vol. 52, pp. 381–384 (2014)
Saito, D., Watanuki, K., Muramatsu, K., Kaede, K., Tasaki, M., Kanahira, T., Ishiguro, E., Mashiko, N.: Preliminary study on evaluation of legibility and visual fatigue against luminescent text display based on physiological information. In: Proceedings of 13th AIC Congress 2017
Simonson, E., Enzer, N.: Measurements of fusion frequency of flicker as a test for fatigue of the central nervous system. J. Ind. Hyg. Taxicol. 23(2), 83–89 (1941)
Kashikura, K., Nemoto, A.: Measurement of mental fatigue using Near-Infrared Spectroscopy. J. Cognitive Neurosci. 15(1), 47–53 (2013)
Okamoto, M., Dan, H., Shimizu, K., Takeo, K., Amita, T., Oda, I., Konishi, I., Sakamoto, K., Isobe, S., Suzuki, T., Kohyama, K., Dan, I.: Multimodal assessment of cortical activation during apple peeling by NIRS and fMRI. NeuroImage 21, 1275–1288 (2004)
Japanese Society of Occupational Health: Research Group of Industrial Fatigue: Shinso Sangyo Hiro Handbook, pp. 36–363 (1995)
Research Group of Industrial Fatigue, Jikaku-sho shirabe (in Japanese). http://square.umin.ac.jp/of/jikakusyou-sirabe2.pdf. Accessed 12 June 2017
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Saito, D. et al. (2018). Evaluation of Legibility and Visual Fatigue Caused by Luminescent Text Displays. In: Karwowski, W., Ahram, T. (eds) Intelligent Human Systems Integration. IHSI 2018. Advances in Intelligent Systems and Computing, vol 722. Springer, Cham. https://doi.org/10.1007/978-3-319-73888-8_100
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DOI: https://doi.org/10.1007/978-3-319-73888-8_100
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