Posted: Sep 05, 2012 2:07 pm
by DavidMcC
Adco wrote:Do our eyes, and brains, just interpret it as continuous or do they arrive in bursts or packets (quanta) to fast for us to be visually affected? I've never observed any flickering when you watch very high speed movies of balloons bursting etc. If they do arrive in packets, it must be at an extremely fast rate. And, how many photons in a packet?

To all intents and purposes, visible photons normally arrive on a semi-continuous basis at a given photoreceptor cell, unless the light level is practically pitch darkness.