[Elecraft] Blue Displays and Visual Acuity

[Jim Miller KG0KP]

Anybody remember the first CRT computer terminals?  They used GREEN 
characters.  Later amber was prettier, but the green ones were first, maybe 
for a reason.

73, de Jim KG0KP

----- Original Message ----- 
From: "Brendan Minish" <ei6iz.brendan at gmail.com>
To: <gdaught6 at stanford.edu>
Cc: <Elecraft at mailman.qth.net>
Sent: Wednesday, June 17, 2009 2:39 PM
Subject: Re: [Elecraft] Blue Displays and Visual Acuity


> On Wed, 2009-06-17 at 12:24 -0700, gdaught6 at stanford.edu wrote:
>> Alan wrote...
>> If I recall correctly, the human eye is most sensitive in the 
>> yellow-green part of the
>> spectrum... 565 nanometers is the peak, but that doesn't necessarily mean 
>> "greatest
>> visual acuity" I guess.
>
> As someone with short sight I find that yellow - green is much clearer
> and sharper at a distance than blue or red.
>
> This makes some sense since the refractive index of my glasses (&
> Eyeballs) as well as the sensitivity to light is based on the middle of
> the the visual spectrum
>
> If you want Blue because it looks pretty, then go for it but it's not
> 'better'.
>
> 73
> Brendan EI6IZ
>
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