Em 9/2/2010 16:59, William "Chops" Westfield escreveu: > = >> visual perception >> = > I dunno. Isn't the usual manifestation that multiplexed and/or = > charlieplexed LED displays don't seem nearly as dim as they ought to = > be, given their actual on-time. I've seen 3 or 4 digit displays and = > done 20-led dot-matricies that light one segment or LED at a time, and = > they certainly don't look ~1/20th the of the "normal rated current" = > brightness of the individual LEDs... > > BillW > = Perhaps that's because most human senses aren't linear, but rather logarithmic such as hearing. This may be the case of sight also. Regards, Isaac __________________________________________________ Fa=E7a liga=E7=F5es para outros computadores com o novo Yahoo! Messenger = http://br.beta.messenger.yahoo.com/ = -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist