On 2009.12.29 00:49, Tomas wrote: > http://www.youtube.com/watch?v=Lwze58K8ofo&feature=related Prie ko čia? > "KEdas"<news.omnitel.net@-trinti-katalogai.net> wrote in message news:hhbbhb$lui$1@trimpas.omnitel.net... >> >> The refractive index for blue light is enough different from red and >> green that when they are in focus, the blue is slightly out of focus >> (chromatic aberration). For an "off the wall" example of this defocusing >> effect on blue light, try viewing a hologram with a mercury vapor lamp. >> You will get three images with the dominant green, orange and blue lines >> of mercury, but the blue image looks less focused than the other two. >> >> Ir čia: http://texyt.com/bright+blue+leds+annoyance+health+risks >> Are they moaning about nothing?