Discomfort Glare Comparison for Various Led Cap Lamps

Details

• Personal Author:
  Gallagher S ; Lutz T ; Mayton A ; Sammarco, John J.
• Description:
  Researchers at the National Institute for Occupational Safety and Health (NIOSH) are investigating different lighting technologies with the objective of improving mine safety. This paper presents results from an ongoing study that compares discomfort glare for different LED cap lamps using the de Boer rating scale. The cap lamps tested included two commercially-available LED cap lamps and one NIOSH prototype LED cap lamp tested at three different illumination levels. Prior research indicated the NIOSH prototype enabled much better visual performance as compared to other LED cap lamps. It uses three LEDs that produce multiple illumination areas in comparison to commercially-available cap lamps that use one LED and project a narrow spot pattern. Across subjects and cap lamp test conditions, measured illuminances (averaged at both eyes) varied from 0.62 lux to 3.73 lux; whereas, the de Boer glare ratings varied from 4.86 to 7.71. An analysis of variance based on 15 subjects indicated a significant difference in discomfort glare due to cap lamps (F 4, 52 = 18.01, p <;0.001). Post hoc tests indicate that one of the commercially-available cap lamps exhibited lower discomfort scores, with no statistically significant differences detected between the others. Thus, the NIOSH prototype cap lamp does not cause. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Eye Lighting Mining Occupational Health Risk Assessment Safety Safety Management Sense Organs Workplace

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• Keywords:
  Coal-miners Coal-mining Control-technology Equipment-design Injuries Injury-prevention Light-properties Light-source Lighting-systems Mine-workers Miners Mining-equipment Mining-industry Quantitative-analysis Risk-analysis Safety-equipment Safety-measures Safety-practices Statistical-analysis Underground-miners Underground-mining Visual-fields Visual-perception Work-analysis Work-environment Work-operations Work-performance Work-practices Worker-motivation Workplace-studies

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• Series:
  Mining Publications
• ISSN:
  0197-2618
• Publisher:
  Institute of Electrical and Electronics Engineers
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OMSHR - Office of Mine Safety and Health Research
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-7
• NIOSHTIC Number:
  nn:20037990
• Citation:
  IAS '10: Conference Record of the 2010 IEEE Industry Applications Conference: Forty-fifth IAS Annual Meeting, October 3-7, 2010, Houston, Texas. Piscataway, NJ: Institute of Electrical and Electronics Engineers, 2010 Oct; :1-7
• Email:
  Jsammarco@cdc.gov
• Federal Fiscal Year:
  2011
• NORA Priority Area:
  Mining
• Peer Reviewed:
  False
• Source Full Name:
  IAS '10: Conference Record of the 2010 IEEE Industry Applications Conference: Forty-fifth IAS Annual Meeting, October 3-7, 2010, Houston, Texas
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a5829f40be7e87e571cfc74ad7a613a289f7eefa6549a3685789104bdd8f20f2e45e74c9e4efb7cf4959ff568c4d2fa598b6ea72fa586fcc428c32887c61ff7f
• Download URL:
  https://stacks.cdc.gov/view/cdc/227282/cdc_227282_DS1.pdf
• File Type:
  [PDF - 463.93 KB ]