Brightness Comparison of Electroluminescent versus Incandescent Lighting: A Photometric Validation

Abstract

Previous studies involving the brightness comparison of electroluminescent (EL) versus incandescent (INC) lighting indicated that observers saw the EL light as being 'brighter' than the INC light even when both lights were photometrically identical. The intent of this experiment was to determine if a perceptual process was present that inhibited the direct photometric measurement of EL lighting. Twelve observers were asked to compare a variable EL light with a fixed INC light. Nine different brightness levels of the EL light were tested. Subjects were asked to rate if the test lamp (EL) was higher, lower, or the same as the reference lamp (INC). The results from this study showed no difference between the two types of lighting; this in turn validates the use of photometry to measure EL lighting directly.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADA145395

Entities

People

  • Mary D. Perry

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Biomedical
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Biomedical Research
  • Brightness
  • Dielectrics
  • Engineering
  • Governments
  • Human Factors Engineering
  • Instructions
  • Instrumentation
  • Intensity
  • Lamps
  • Light Sources
  • Luminance
  • Measurement
  • Observers
  • Photometers
  • Standards

Readers

  • Atmospheric Remote Sensing.
  • Human-Computer Interaction (HCI).