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LED Area Lighting to Reduce Glare for Roof Bolter Operators
Mining, Metallurgy & Exploration ( IF 1.9 ) Pub Date : 2020-02-24 , DOI: 10.1007/s42461-020-00193-x
John J Sammarco 1 , Alan G Mayton 1 , Elaine N Rubinstein 1
Affiliation  

Researchers from the National Institute for Occupational Safety and Health (NIOSH) developed a light-emitting diode (LED) area luminaire called the Saturn and conducted a laboratory study using a Fletcher High Dual-boom Mast Feed (HDDR) roof bolting machine. The Saturn luminaire was designed to (1) enhance floor illumination to enable better detection of trip hazards in the interior spaces of a roof bolter and (2) reduce glare that has typically been an issue of concern on roof bolters. This paper reports on the results of achieving the second objective. The existing roof bolter lighting was the baseline and was compared with three versions of the Saturn luminaire relative to light intensity (100%, 75%, and 50%). Discomfort and disability glare data were obtained from 30 participants that comprised three age groups. Discomfort glare perceptions were obtained using the De Boer rating scale, and disability glare was quantified by using Mars Letter Contrast Sensitivity tests. Discomfort glare was reduced at least 3 levels with all Saturn versions. Also, a predictive model was used to estimate discomfort glare, and the results were similar. Disability glare was the least for the Saturn’s 50% intensity, and all Saturn versions had significantly less disability glare than with the baseline lighting. Veiling luminance was calculated and used as another indicator of disability glare. Veiling luminance was 28 to 42 times greater with the baseline lighting as compared with that of the Saturn lighting. Lastly, visibility levels were calculated. The Saturn versions were 4 to 6.5 times better in terms of visibility level.

中文翻译:

LED 区域照明可减少屋顶螺栓操作员的眩光

美国国家职业安全与健康研究所 (NIOSH) 的研究人员开发了一种名为 Saturn 的发光二极管 (LED) 区域灯具,并使用 Fletcher High Dual-boom Mast Feed (HDDR) 屋顶螺栓机器进行了一项实验室研究。Saturn 灯具旨在 (1) 增强地板照明,以便更好地检测锚杆机内部空间中的绊倒危险,以及 (2) 减少通常是锚杆机关注的问题的眩光。本文报告了实现第二个目标的结果。现有的屋顶螺栓照明是基准,并与相对于光强度(100%、75% 和 50%)的 Saturn 灯具的三个版本进行比较。不适和残疾眩光数据来自三个年龄组的 30 名参与者。使用 De Boer 评定量表获得不适眩光感知,使用 Mars Letter Contrast Sensitivity 测试量化残疾眩光。所有土星版本的不适眩光至少减少了 3 个级别。此外,使用预测模型来估计不适眩光,结果相似。对于土星 50% 的强度来说,残疾眩光是最少的,并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。使用 Mars Letter Contrast Sensitivity 测试对残疾眩光进行量化。所有土星版本的不适眩光至少减少了 3 个级别。此外,使用预测模型来估计不适眩光,结果相似。对于土星 50% 的强度来说,残疾眩光是最少的,并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。使用 Mars Letter Contrast Sensitivity 测试对残疾眩光进行量化。所有土星版本的不适眩光至少减少了 3 个级别。此外,使用预测模型来估计不适眩光,结果相似。对于土星 50% 的强度来说,残疾眩光是最少的,并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。所有土星版本的不适眩光至少减少了 3 个级别。此外,使用预测模型来估计不适眩光,结果相似。对于土星 50% 的强度来说,残疾眩光是最少的,并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。所有土星版本的不适眩光至少减少了 3 个级别。此外,使用预测模型来估计不适眩光,结果相似。对于土星 50% 的强度来说,残疾眩光是最少的,并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。并且所有土星版本的残疾眩光都比基线照明要少得多。计算面纱亮度并用作残疾眩光的另一个指标。与土星照明相比,基线照明的面纱亮度高 28 到 42 倍。最后,计算能见度。土星版本在能见度方面要好 4 到 6.5 倍。
更新日期:2020-02-24
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