31 Oct
2011
31 Oct
'11
2:51 a.m.
2011/10/31 Eric Smith <eric at brouhaha.com>
Benjamin S?lberg wrote:
I would expect a double-blind person would say that he couldn't see any
difference :-)
Joke-a-side.. If multiplexing really did save power then just pulsing a
single led would do the same..
It might be true... think bicycle lights ?
--
Med venlig hilsen / Best regards
Benjamin S?lberg
So if you multiplex 8 leds you need 8 times the
peak current to keep the
same luminance ?
8:1 multiplex requires 8 times the peak current to get the same average
power. Years ago I saw some claims that with multiplexing you can use
lower average power for the same perceptual brightness, due to retinal
persistence. However, I've seen other people claim that this is not true.
It would be entertaining to set up a double-blind test and find out.