Readability of alphanumeric characters having various contrast levels as a function of age and illumination mode
By: Kenneth W. Welsh Paul G. Rasmussen, and John A. Vaughan ; Civil Aeromedical Institute, Federal Aviation Administration, Oklahoma City, Oklahoma
Contributors: Rasmussen, P. G., author; Vaughan, John A., author; United States. Office of Aviation Medicine; Civil Aeromedical Institute
Series: Report - Office of Aviation Medicine ; FAA-AM-77-13; Report (United States. Office of Aviation Medicine) -- FAA-AM-77-13
Publisher: Department of Transportation, Federal Aviation Administration, Office of Aviation Medicine; For sale by the Naional Technical Information Service
Published: 1977
Place of publication: Washington; Springfield, Va
Language: eng
Subjects: Visual discrimination; Form perception; Aging
Notes: Cover title.

Prepared under Task no. AM-A-77-PHY-93.

Includes appendix.

Issued July 1977.

Bibliography: p. 7-8.