Implementing Health-Protective Features and Practices in Buildings Workshop Proceedings: Federal Facilities Council Technical Report #148 (2005) / Chapter Skim
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4 Lighting: Research and Findings--Mark Rea
4 Lighting: Research and Findings--Mark Rea
Pages 39-43
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From page 39... ...
In part, this is because people have very flexible visual systems. If we examine the range of light levels that illuminate buildings, we see that of the 16 log unit range in sensitivity only 4 log units are used with electric lighting (see Figure 4.2)
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FIGURE 4.2 Range of human sensitivity to light together with the range of luminances provided by electric lighting. SOURCE: Robert Sekuler and Randolph Blake.
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Stair lighting is one example; trips and falls resulting from inadequate lighting result in many injuries in the workplace. Normal aging is another factor to consider in studying lighting, indoor environmental quality, and workers' health and productivity.
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SOURCE: Reprinted with permission from D.T. Williams, 1983, Aging and central visual field area, American Journal of Optometry and Physiological Optics 60:888-891.
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He is a fellow of the Society of Light and Lighting of the United Kingdom, and is a member of the Commission Internationale de L'Eclairage, the Illuminating Society of North America, the Optical Society of America, and the American Association for the Advancement of Science. During his career Dr.
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