Polarising Sunglasses

[Jemy]

Hi, a quick question,

Are there any problems with using polarising sunglasses on the flight deck? Do they interfere with the aircraft windscreen in any way?

Thanks
Jemy

[obgraham]

Biggest problem is that you can't see anything displayed on an LCD screen. Like some clocks, transponders, GPS's. More and more of them about these days.

[gingernut]

Are the aircraft windscreens polarised?

If so, I guess polarised specs would be a no no, as rotation of one surface against the other would lead to a "black out." (Try it with two pairs of specs).

Incidentally, polarised sunglasses were always good at showing up the "safety area" of the windscreen of my Mark one Ford Escort.

[razzele]

I have been wearing Serengetti's with the 555NM polarised lenses at work recently. I bought them for fishing and driving, as they are great for removing glare and hence eye fatigue. I had a great pair of serengeti driver coupes before that, they are sadly damaged beyond repair now.

The screens on the 737NG are affected not as much as the view through the windows by the polaroid lense. Im not sure what it is in the windows (heating elements/laminate/UV filters) but a 'phsycodelic swirl' is visible when wearing these sunglasses.

The swirl is like light passed through a prism, split into rainbow colours. The ammount of swirls of colour seems to change from aircraft to aircraft, some being quite obtrusive to a good lookout.

When looking straight on at the efis displays there is limited 'darkening' of the screens, viewing angle changes the level of darkening.

Definetely do not recommend polaroid lenses for this plane, great for driving though.