Drop Ball Test
Hoya Vision's Phoenix lenses, made with
Trivex lens material from PPG Industries, bounced back from the impact of a 1 kilogram (2.2 pound) steel ball
dropped from 50 inches in this drop ball test displayed at the Hoya booth during Vision Expo. The
fragments seen on the floor of the test are from a shattered CR-39 lens, tested in the same manner as the Phoenix
lens just moments before this demonstration.