The Effect on Vision of Light Scatter From HMD Visors and Aircraft Windscreens

Abstract

The amount of scattered light, or haze, typically increases as transparent materials age, wear, become dirty, or become scratched from cleaning. Light scattered from scratched aircraft transparencies, such as windscreens, head-up-display combiners, and helmet visors, can potentially reduce pilot visual performance and reduce target detection range. Presented in this paper are the results of an investigation of light scattered from transparencies exhibiting different levels of wear and surface damage. Two methods of measuring scattered light are compared. Visual performance under conditions of white light scatter relevant to the use of helmet-mounted displays in the cockpit is also examined.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1999
Accession Number
ADA430274

Entities

People

  • H. L. Task
  • Peter L. Marasco

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Contrast
  • Detection
  • Display Systems
  • Helmet Mounted Displays
  • Light Sources
  • Materials
  • Materials Testing
  • Measurement
  • Military Aircraft
  • Scattering
  • Standards
  • Target Detection
  • Test Methods
  • White Light

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Human-Computer Interaction (HCI).
  • Optical Physics and Photonics.