Readability of alphanumeric characters having various contrast levels as a function of age and illumination mode /

Bibliographic Details

Main Author:	Welsh, Kenneth W.
Corporate Authors:	United States. Office of Aviation Medicine, Civil Aeromedical Institute
Other Authors:	Rasmussen, P. G., Vaughan, John A.
Format:	Government Document Book
Language:	English
Published:	Washington : Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine ; 1977.
Series:	Report - Office of Aviation Medicine ; FAA-AM-77-13
Subjects:	Visual discrimination. Form perception. Aging.