Color Perception in the Transitional Zones of Tricolor Glide-Slope Indicators (GSI'S).

Abstract

The report describes an investigation of color perception in the transitional zones of tricolor glide-slope indicators (GSI's) designed to aid helicopter night approaches to non-aviation ships. In GSI's with colors arranged, from top to bottom, yellow, green, red (YGR), an anomalous yellow or white appears in the transitional zones between the green and red color regions. This anomalous color can be misinterpreted as a too high signal and lead to a potentially hazardous descent maneuver. It was experimentally determined that the anomalous color zone occurs over an angular extent of at least .319 degrees in the GSI unit tested. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1973
Accession Number
AD0771422

Entities

People

  • Gail J. Borden
  • Robert T. Hennessy

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Glide Slope
  • Helicopters
  • Indicators
  • Maneuvers
  • Perception

Readers

  • Aviation Science / Aeronautics.
  • Occupational Health and Safety.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.