On Thu, 10 Feb 2011 14:42:47 +0000
Roland Perry wrote:
In message
, at
05:36:42 on Thu, 10 Feb 2011, George
remarked:
I won't call you boring or conventional Paul but I am staggered at
your apparent dislike of LED displays, they are far far clearer at
night than torn dirty blinds and often unlit blind boxes

There are some sorts of impaired vision (especially at night) which
result in a blurring of point-sources of light.

Everyone has that because the human eye accepts a range of wavelengths but
the lens can't focus all of them accurately at the same time. I can't remember
what wavelength it works best at but you'll find that either indigo/blue or
deep red point sources (I forget which) will appear slightly out of focus in
the dark.

B2003