CRT화면과 그 주면변의 휘도분포가 작업수행 및 눈의 피로에 미치는 영향 ( The Influence of the Luminance Distribution between CRT screen and rest of environments on the Working Performance and the Eye Fatigue )
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The former experiment has extracted the preferable
luminance ratios between CRT screen and rest of environments
by the subjective evaluation.
This study carried out on the working performance and the
eye fatigue in order to examine into adaptability of the
former experiment results. Firstly, we measured the effects
of the performance score(typing numbers, correct rate), the
blinking counts, and the near point distance. Secondly, we
evaluated the subjective effects of the working performance
and the eye fatigue under 3 experimental conditions(keyboard,
paper reflectance ratios 0.1,0.4,0.8).
The result obtained was as follows; in case of keyboard and paper
reflectance ratio 0.4, every experimental item has presented the
best.
Conclusively, it is proved that the preferable luminance ratios
between the CRT screen and rest of environments has found out ;
character : keyboard : paper = 1 : 3.8 : 4.1.