The Effects of Color-Coding Indicator on Dark Adaptation
RAYTHEON CO PORTSMOUTH RI SUBMARINE SIGNAL DIV
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Utilization of complex systems is handicapped by lighting requirements for dark adaptation of personnel. An experiment was conducted to compare reaction times to color-coded indicators under red, nominal white and normal white ambient lighting. Subsequent analysis shows that poorest performance was obtained under red ambient illumination. Visual acuity tests indicate that dark adaptation is primarily dependent upon the overall illumination level rather than upon red lighting. Results tend to prove that an illuminated indicator display color has little effect on dark adaptation, and that certain indicator colors are more quickly detected than others. Recommendations are made for optimal and alternate lighting and indicator color combination.
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