BRIGHTNESS OF ISOLATED COLORED LIGHTS

THE PRESENT STUDY INVESTIGATED THE BRIGHTNESS OF COLORED LIGHTS THAT WERE VIEWED AGAINST A DARK BACKGROUND, WHICH IS THE WAY IN WHICH TRAFFIC AND NAVIGATION SIGNALS AND AUTOMOBILE TAIL LIGHTS ARE SEEN EVERYDAY. BRIGHTNESS OF 2 DEGREES CENTRALLY FIXATED MONOCHROMATIC LIGHTS WAS MEASURED BY: MAGNITUDE ESTIMATION DELAYED MATCHING AND CONVENTIONAL HETEROCHROMATIC PHOTOMETRY. THE PHOTOMETRY DATA RESEMBLE THE CIE PHOTOPIC RELATIVE LUMINOUS EFFICIENCY FUNCTION BUT BOTH THE ESTIMATION AND THE DELAYED MATCHING PROCEDURES RESULT IN SUBSTANTIALLY HIGHER SENSITIVITIES TO SHORT-WAVELENGTH STIMULI.

• Corporate Authors:

  American Institute of Physics

  One Physics Ellipse
  College Park, MD  United States  20740-3843
• Authors:
  • Cavonius, C R
  • Hilz, R
• Publication Date: 1973-7

Media Info

• Pagination: p. 884-8
• Serial:
  • Optical Society America Journal
  • Volume: 63
  • Issue Number: 7

Subject/Index Terms

• TRT Terms: Brightness; Color; Light; Measurement; Photometry
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00222273
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 16 1973 12:00AM