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Arkroyal
28th May 2004, 23:34
Thinking of getting a pair of prescription sun glasses with lenses which react to light levels.

Do they work in the flight deck? Or will the window glass already filter out the UV which makes them work?

Flyin'Dutch'
29th May 2004, 07:14
These adjusting lenses are no good for fly crew.

The reaction times are too slow (especially the de-colouring process is slow) and they also colour up in the cold.

So on a cold winter's cloudy day you will be walking with shades on and see nowt. Same if you descend from a flight on top in the sunshine into an overcast and drizzle underneath.

HTH

FD

Arkroyal
29th May 2004, 10:55
Thanks Dutch. I was believing the ads showing them as almost instant.

Silly me!