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[confused] Blurred blue color

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eirp

eirp

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Hi all!

Not sure if EEQ is the right forum,...

I noticed interesting effect for which I don't have explanation.

Some special tones of blue (like traffic lights on railway station and blue LEDs) looks very blurred.
For example I saw rolling text made from these blue LEDs and thanks to that blur-effect it was almost not readable!!

So question is --

- is blurring caused by my eyes or generally by human eye?
- dispersion in air?
- anything else?

?

thanks
 

The blurring of blue light is normal in human vision.
Therefore glases with yellow coloured lenses improve contrast - they filter out
all blue light.

/Rambo
 

    eirp

    eirp

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Human vision degrades with age. Compare your observation with friends that have your same age.

Try looking at the blue light through a small aperture, such as a 2mm diameter hole, held close to your eye. The light will probably appear much sharper (although dimmer), especially at night.
 

XNOX_Rambo said:
The blurring of blue light is normal in human vision.
Therefore glases with yellow coloured lenses improve contrast - they filter out
all blue light.

/Rambo
Click to expand...

Hmm, this explanation seems reasonable to me...

But could anybody explain what's the physics behind the blurred blue and eye?

echo47 - i think this is not caused by age primarily

Thanks
 

i also have this blurry vision of the blue lights. i'm also only 19 yo.

i have only noticed this problem recently. i often describe this as "confusing" situation. i also need to wear perscription glasses. could that have something to do with it? i used to wear the UV protection glasses, but recently i got the low-grade "economy" glasses with no protection.
 

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