Accession Number:

AD0646660

Title:

STUDIES OF DISPLAY SYMBOL LEGIBILITY. PART 12. THE LEGIBILITY OF ALPHANUMERIC SYMBOLS FOR DIGITALIZED TELEVISION

Descriptive Note:

Corporate Author:

MITRE CORP BEDFORD MA

Report Date:

1966-11-01

Pagination or Media Count:

44.0

Abstract:

The relative legibility of numerals and capital letters in four fonts, standard Leroy, an Idealized Hazeltine, a Simulated Hazeltine and a Modified Idealized Hazeltine, was studied in three experiments using a controlled exposure time, single-symbol, recognition test. The Hazeltine fonts were constructed of TV lines digitally controlled to generate symbols of elements in a five-column by seven-row rectangular matrix. The Hazeltine font was found to be as legible as the Leroy, but losses in legibility were found for photographic simulations of the symbols as they appear on a TV tube. The modified font was found to be superior in legibility, and is recommended for display use.

Subject Categories:

  • Human Factors Engineering and Man Machine Systems
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE