A TECHNIQUE FOR EVALUATING THE EFFECTIVENESS OF MOTOR VEHICLE FOG LAMP SYSTEMS

THE CRITERIA FOR EVALUATING THE EFFECTIVENESS OF MOTOR VEHICLE FOG LAMP SYSTEMS ARE BASED ON THE EFFECTIVE VISUAL ACUITY OF THE DRIVER UNDER NIGHT FOG CONDITIONS. THE STUDY IS DIVIDED INTO TWO SEPARATE EXPERIMENTS. THE FIRST INVOLVES THE LABORATORY TESTING OF SUBJECTS WITH SIMULATED TARGET LIGHTING AND VEILING LUMINANCE. THE SECOND INVOLVES THE PHOTOMETRIC MEASUREMENTS OF THE LAMP SYSTEMS' ILLUMINATION CHARACTERISTICS. THE RESULTS OF THE TWO STUDIES ARE COMBINED TO YIELD, FOR A VARIETY OF LAMP SYSTEMS, A PLOT OF THE DECREMENT IN AVERAGE EFFECTIVE VISUAL ACUITY AGAINST DISTANCE FROM THE LAMPS. /AUTHOR/

• Corporate Authors:

  Red River Army Depot

  ,    
• Authors:
  • Olson, E T
• Publication Date: 1971-12

Media Info

• Pagination: 62 p.

Subject/Index Terms

• TRT Terms: Drivers; Evaluation; Fog; Headlamps; Laboratory tests; Night vision; Photometry; Vision; Visual perception
• Old TRIS Terms: Driver vision
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00221889
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: Ma Thesis
• Files: TRIS
• Created Date: Jul 8 1973 12:00AM