Sunglasses - tint color (cast?).

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rayonline

1734 posts

Uber Geek

#240600 16-Sep-2018 13:36

Hi all

I don't wear much sunglasses. I wear specs.

In the past before I washed the inner lens of my Oakley ski goggles (~2009) they had the persimmon oakley lens - after a while he amber color adjusted to normal color ie white snow, blue skies. I have just picked up a pair of Giro Vivid which is similar to Oakley Prizm the tint inside is red - does the eye adjust afterwards?

What about normal sunglasses ie Oakley Iridiums and the newer Prizms and sunglasses in general?

Cheers :)

Geektastic

17944 posts

Uber Geek

Trusted

Lifetime subscriber

#2091473 16-Sep-2018 15:32

USAF issue Randolphs come with grey tints, for what that is worth.

I have some Oakley Prizm in Tungsten and they are very good lenses - much much better than the Oakley Polarised ones I had before.

Fred99

13684 posts

Uber Geek

#2091598 16-Sep-2018 18:03

As I understand it, there's a reason why (Kruithof curve) typical sunglass lenses may be tinted to transmit more yellow-ish light and block blue light a bit (when reducing overall light transmission). If the lens was truly neutral, it would seem to impart a slightly blue tint when you first put the glasses on.

Yes - your eye adjusts. They'll even adjust so that if you wore some glasses for a few days that inverted an image, that'll then seem normal, and if you then take the glasses off, everything will look upside down until your eyes re-adjust to normal. Your vision usually adjusts automatically to colour temperature (tint) of eyeglasses - unless that was extreme. It does this automatically every day to cope with change in colour temperature of natural night - you can still tell if a "white" shirt is white at midday, dusk, in moonlight, or under artificial lights. If you were to measure the colour of the reflected light in each situation, it wouldn't even be remotely close to "white", except perhaps at midday.

Tinkerisk

4235 posts

Uber Geek

#2091621 16-Sep-2018 18:33

Geektastic:

USAF issue Randolphs come with grey tints, for what that is worth.

Still valid for pilots. You need to identify red and green correctly and to be able to look directly into the sun to see a bogey.

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