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Historically, lighting a roof bolter has been challenging given the machine’s size, limited space for mounting lighting, low contrast levels, and excessive glare due to the workers’ close proximity to the machine lighting. To address these challenges, NIOSH researchers developed the Saturn LED area light with the main objectives of reducing glare and increasing floor illumination to improve the ability of miners to see floor tripping hazards. A secondary objective was to reduce the size of the lighting to give more flexibility for mounting the lighting on roof bolters—thus, new mounting locations could potentially provide better illumination of hazards. The Saturn LED area light (Figure 1) takes up only one-third the volume compared to existing lights used on roof bolters, and it has a useful life of about 30,000 hours in contrast to the existing Background Providing adequate lighting for miners to work safely is a significant challenge given that underground mines are one of the most difficult environments to illuminate [Rea 2000]. Although a trend of increasing mine worker safety is evident, mining equipment-related fatalities and injuries are still at unacceptable levels. As an example, Ph ot o by N IO SH

Technology News 560 - the Saturn LED area light provides improved illumination for greater roof bolter safety.