Soccer ball with motion graphic

摘要

Balls for team and individual sports include a motion graphic that provides enhanced perception of ball rotation. The motion graphic is typically defined with a visual characteristic that contrast with a ball casing. The motion graphic includes first and second termination portions that are coupled by a connection region. The first and second termination portions are symmetrically situated with respect to a longitudinal axis and are asymmetric with respect to axes perpendicular to the longitudinal axis. The motion graphic and the ball casing can be provided with substantially opposite colors selected to exhibit similar or substantially the same reflectivities.

主权项

1. A ball, comprising:
a first exterior field region associated with a first visual stimulus; a second exterior field region in which a motion graphic is defined based on a second visual stimulus that is substantially contrasting with the first visual stimulus based on:
a first color for the first visual stimulus and a second color for the second visual stimulus, the first color and the second color having CIE plot locations that are widely separated and opposite with respect to the location of a standard white illuminant;a first luminance for the first visual stimulus and a second luminance for the second visual stimulus, the first luminance comprising an increased luminance contrast with the second luminance; and a continuous perimeter enclosing the motion graphic, the perimeter including a first continuous perimeter portion exhibiting a first visual characteristic, a second continuous perimeter portion exhibiting a second visual characteristic, and a third continuous perimeter portion exhibiting a third visual characteristic, wherein the first perimeter portion is adjacent to the motion graphic, the third perimeter portion is adjacent to the first exterior field region, and the second perimeter portion is between the first and the third perimeter portions and is wider than the first and the third perimeter portions, and wherein the perimeter portions are non-overlapping.