Sunglasses
#1
Sunglasses
Quick question. I'll eventually be in the market for sunglasses. I've heard a rumor that with polarized sunglasses, pilots can't see (can't make out, can't understand, I don't know, just one way or another render useless) the Garmin 430's in our aircraft. Is this a bogus rumor (it sounds really fishy to me), or is there some truth to it? If so, does it happen with all LCD's, Garmin hardware, or what?
#2
Some of this was covered here:
http://www.airlinepilotforums.com/showthread.php?t=5548
They don't work well in aircraft. Too much distortion is visible in the cockpit glass.
http://www.airlinepilotforums.com/showthread.php?t=5548
They don't work well in aircraft. Too much distortion is visible in the cockpit glass.
#4
Polarized sunglasses made the King Air windshield have black vertical lines.
I now use el-cheapos that cost a maximum of $25.00. They block UV, are not polarized, and I don't cry for a week when I break them or forget them somewhere.
I now use el-cheapos that cost a maximum of $25.00. They block UV, are not polarized, and I don't cry for a week when I break them or forget them somewhere.
#6
This link explains how polarization works. It shows how if you rotated two polarized lenses 90 degrees from each other, they let NO light through. So if anything in the aircraft is polarized (Garmin screen etc) and your polarized glasses lens is oriented 90 degrees, the screen will appear black.
http://www.colorado.edu/physics/2000...ing_light.html
http://www.colorado.edu/physics/2000...ing_light.html
#7
New Hire
Joined APC: Jul 2006
Posts: 5
I wish I would have asked the same question before I went and bought a $150 pair of "polorized" Ray Bans. Now, I'm once again in the market for sunglasses, this time "non-polorized". I do love them for fishing and just about everything else though. They just don't work well in a lot of cockpits.
#8
I don't normally wear a certain pair of sunglasses, but one day I did in the 767-400 and when I turned my head the screens went black. Now I'm sure not to wear them. I don't spend much on glasses. I don't pay for names.
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jimthom2
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03-25-2006 09:50 PM