John J. Sammarco

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This experiment investigated the effects of different machine mounted area lighting technologies on visual performance. The primary objective was to conduct a comparative evaluation of the lighting technologies based on the visual performance of thirty-six human subjects in a simulated underground mine environment. Incandescent (Incand), fluorescent(More)
—Illumination plays a critical role in an underground miner's safety because miners depend most heavily on visual cues to recognize hazards. Mobile mining machinery, located in the miner's peripheral field of view (10 • to about 60 • off-axis), may pose potential pinning and striking ± hazards. ± The main ob­ jective of this research was to determine if(More)
The mention of any company or product does not constitute endorsement by the NIOSH. The findings and conclusions in this paper are those of the authors and do not necessarily represent the views of NIOSH. Abstract—Researchers at the National Institute for Occupa­ tional Safety and Health (NIOSH) are investigating different light­ ing technologies with the(More)
—Light-emitting diodes (LEDs) are emerging as vi­ able replacements for incandescent (INC)-based cap lamps used in mining. The photometric and energy characteristics of these light sources differ in important ways. This paper describes the performance of LED and INC sources in cap lamps in terms of correlated color temperature, color rendering, light(More)
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