STUDIES OF DISPLAY SYMBOL LEGIBILITY: XXII. THE RELATIVE LEGIBILITY OF FOUR SYMBOL SETS MADE WITH A FIVE BY SEVEN DOT MATRIX

Legibility comparisons were made among four 5 x 7 dot fonts. The four symbol fonts were shown under nearly optimal viewing conditions to one group of operators and under degraded viewing conditions to a second group of operators. The results showed that no one symbol set was significantly superior in legibility to any of the other sets. It was concluded that new symbols designs are needed to improve the legibility of present 5 x 7 dot symbol sets.
See also AD702491.