THE EFFECT OF COLORED LENSES UPON COLOR DISCRIMINATION

Abstract

Six commercial types of sun glass lenses were used in six laboratory tests to determine their effects on color perception, during and immediately after the wearing. Neutrals (types, Neutral and Polaroid) and greenish-gray lenses (types, Rayban and Calobar) produced little distortion of color perception as measured by any test. Brown lenses (type, Rose Smoke) caused considerable decrement in color discrimination and a yellow lens (type, Noviol) caused extreme decrement. None of the lenses increased color perception in any part of the color range. It is concluded that greenish-gray lenses of the Rayban and Calobar type do not seriously impair color perception when used for the observation of non-dichromatic materials. A study was made on the after effects of wearing the lenses; it appears that adaptation proceeds rapidly and is half-completed in about 5 seconds. There are appendices on the measurement of spectral transmittance of polarizing film and on methods of specification of neutrality for sunglasses.

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Document Details

Document Type
Technical Report
Publication Date
Sep 03, 1945
Accession Number
AD0636641

Entities

People

  • Dean Farnsworth

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Brightness
  • Color Vision
  • Discrimination
  • Illuminants
  • Illumination
  • Laboratory Tests
  • Materials
  • Measurement
  • Observation
  • Observers
  • Optical Phenomena
  • Optical Properties
  • Perception
  • Specifications
  • Standards
  • Test Methods
  • Transmittance

Fields of Study

  • Physics

Readers

  • Vision Science/Vision Psychology/Cognitive Neuroscience.