Effect of Wave Form upon Incandescent Lamps
نویسندگان
چکیده
منابع مشابه
Performance of Halogen Incandescent MR16 Lamps and LED Replacement
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Standard incandescent brake lamps have a relatively slow rise time. It takes approximately a quarter of a second for them to reach 90% of asymptotic light output, causing potential delays in responses by following drivers. The present study evaluated reaction times to brake signals from standard incandescent brake lamps and from three alternative brake lamps with substantially faster rise times...
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The U.S. National Institute for Occupational Safety and Health (NIOSH) is conducting mine illumination research to determine if light-emitting diode (LED) cap lamps can improve safety by reducing glare. Glare can impede a miner’s ability to see hazards and to safely perform their work.Another objective is to determine if a person’s age is a factor.This is important because the workforce is agin...
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BACKGROUND Some characteristics of lighting sources such as color properties and ultraviolet emissions have important roles on visual and non-visual health effects of lighting. This study aimed to investigate the light emissions of some compact fluorescent lamps (CFLs) and incandescent lamps commercially available to the Iranian consumers. METHODS Sixty lamps included 48 single envelope CFLs,...
متن کاملVisual performance for trip hazard detection when using incandescent and led miner cap lamps.
INTRODUCTION Accident data for 2003-2007 indicate that slip, trip, and falls (STFs) are the second leading accident class (17.8%, n=2,441) of lost-time injuries in underground mining. Proper lighting plays a critical role in enabling miners to detect STF hazards in this environment. Often, the only lighting available to the miner is from a cap lamp worn on the miner's helmet. The focus of this ...
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ژورنال
عنوان ژورنال: Physical Review (Series I)
سال: 1911
ISSN: 1536-6065
DOI: 10.1103/physrevseriesi.32.256.2