At 14:01 13 June 2013, Andy wrote:
On Jun 13, 4:02=A0am, Doug Mueller wrote:
DO NOT FLY WITH NON POLORIZED LENS!
by doing so you trick your eye into opening wider because of
the
shade. Remember polorization is used to protect from UV
light. If
you open your eye wider by non polarized glass you expose
your
eye to that UV light. You will damage your eye much
quicker. It is
not a function of can you see your instruments or not. Do
not be
mislead into this kind of thinking......
Most glider canopies are not made with polorized protection.

There has been some amazing misinformation posted on RAS
but this post
has to take first prize!

Andy
There was no intention of misinformation. I am stating pure and
simple facts. Anti glare does not necessarily filter out UV light.
The comment about pilot sunglasses is a consideration.
Professional pilots look through polorized glass in their cockpits.
Looking through two pieces of polorized glass will give the
blanking effect that has been mentioned on this thread. In the
desert southwest antiglare is not sufficient protection from UV
light. It might be in places where the sun is not as intense. The
coments I made about the eye are not incorrect either. Thanks
for the prize Andy what ever it is. Just trying to protect glider
pilots so you can see me flying. Oh ya thats what FLARM is for.