Polarized Sun Glasses and PDAs

[Michael Reid]

All,

I'm picking out a new pair of sunglasses for soaring and I had a few
questions.

Has anyone had problems seeing their PDA while flying with Polarized
lenses?

Is anyone flying with Oakley black iridium polarized lenses?

Thanks,
Michael 'BK'

[ZZ]

Perhaps risky, financially. My scree, an older IPAQ, is almost invisible
with a polarized lens.
Paul
ZZ

On 4/4/2010 5:47 PM, Michael Reid wrote:
> All,
>
> I'm picking out a new pair of sunglasses for soaring and I had a few
> questions.
>
> Has anyone had problems seeing their PDA while flying with Polarized
> lenses?
>
> Is anyone flying with Oakley black iridium polarized lenses?
>
> Thanks,
> Michael 'BK'

[Bob Kuykendall]

On Apr 4, 5:47*pm, Michael Reid > wrote:
> All,
>
> I'm picking out a new pair of sunglasses for soaring and I had a few
> questions.
>
> Has anyone had problems seeing their PDA while flying with Polarized
> lenses?

I used to fly with polarized lenses. What I found is that you have to
be careful that the polarizations of the screen and the lenses didn't
interfere. For the LCD devices I flew with at the time (GPS-NAV
screen, digital battery monitor), I pretty much got lucky and they
worked fine. But I noticed that with some other devices, for example
my FRS walkie-talkies, I had to hold the device sideways to read the
display.

Bottom line, I'd suggest taking the PDA with you when you try out the
sunglasses.

Thanks, Bob K.

[Mike[_8_]]

On Apr 4, 6:47*pm, Michael Reid > wrote:
> All,
>
> I'm picking out a new pair of sunglasses for soaring and I had a few
> questions.
>
> Has anyone had problems seeing their PDA while flying with Polarized
> lenses?
>
> Is anyone flying with Oakley black iridium polarized lenses?
>
> Thanks,
> Michael 'BK'

Using an Ipaq 39xx and polarized Eagle Eyes I can see the screen fine.
Gets rid of the glare. The glasses do not have a dark tint.

What Bob said.

[noel.wade]

Also, on a more general note:

Some canopy materials have bad interactions with polarized lenses.
When I was training in a Diamond DA-20 I made the mistake of wearing
polarized lenses once and was treated to a wonderful changing moire
pattern all over the canopy, as I turned my head - ugh!

So check your canopy as well as your PDA, before you drop a lot of
dough on fancy lenses!

--Noel

[Jip]

"noel.wade" > wrote in message
...
> Also, on a more general note:
>
> Some canopy materials have bad interactions with polarized lenses.
> When I was training in a Diamond DA-20 I made the mistake of wearing
> polarized lenses once and was treated to a wonderful changing moire
> pattern all over the canopy, as I turned my head - ugh!
>
> So check your canopy as well as your PDA, before you drop a lot of
> dough on fancy lenses!
>
> --Noel

And last but not least, with polarized lenses reflections are suppressed.
That means that you easely miss a sun reflection in the cannopy of an other
glider.
Missing other traffic means an increased risk of collission.
No polarized glasses for me in the cokpit!!

[Tony[_5_]]

and you are banking that the next gee whiz flash bang gismo to come
down the line is not going to have a polarized screen that interferes
with your sunglasses. I picked up a pair of prescription ray ban's a
few weeks ago and decided to make life easy and got non polarized
lenses.

[Greg Arnold[_3_]]

On 4/5/2010 1:27 AM, Jip wrote:
> > wrote in message
> ...
>> Also, on a more general note:
>>
>> Some canopy materials have bad interactions with polarized lenses.
>> When I was training in a Diamond DA-20 I made the mistake of wearing
>> polarized lenses once and was treated to a wonderful changing moire
>> pattern all over the canopy, as I turned my head - ugh!
>>
>> So check your canopy as well as your PDA, before you drop a lot of
>> dough on fancy lenses!
>>
>> --Noel
>
> And last but not least, with polarized lenses reflections are suppressed.
> That means that you easely miss a sun reflection in the cannopy of an other
> glider.
> Missing other traffic means an increased risk of collission.
> No polarized glasses for me in the cokpit!!
>


It is possible that you might miss a sun reflection on a glider.
However, polarized gliders make the sky much darker, so in general they
make other gliders stand out. They also help with the visibility of
distant clouds.

[Derek C]

On 5 Apr, 01:47, Michael Reid > wrote:
> All,
>
> I'm picking out a new pair of sunglasses for soaring and I had a few
> questions.
>
> Has anyone had problems seeing their PDA while flying with Polarized
> lenses?
>
> Is anyone flying with Oakley black iridium polarized lenses?
>
> Thanks,
> Michael 'BK'

You should be able to see your PDA wearing polarized sunglasses, but
you may need to rotate your head though 90 degrees to read what's on
the screen! Plain tints are probably better. Yellow to brown tints
seem best at cutting through haze and highlighting clouds.

Derek C

[John Smith]

Am 06.04.10 23:24, schrieb Derek C:
> Plain tints are probably better. Yellow to brown tints
> seem best at cutting through haze and highlighting clouds.

It's not a question of the overall tint, but rather that the lens is a
strong blue attenuator, i.e. that most (but not all!) of the blue light
is filtered out. Granted every blue attenuator will have a brownish
overall colour, but not every brownish lens is a blue attenuator.

Personally I wear Zeiss Skylet lenses and couldn't be happier. Not only
do they have a well tuned colour filter, but they also are optically
perfect. However they are pretty costly, so you should only consider
them if you don't tend to sit on your glasses.

[Darryl Ramm]

On Apr 5, 10:28*am, Greg Arnold > wrote:
> On 4/5/2010 1:27 AM, Jip wrote:
>
>
>
> > > *wrote in message
> ...
> >> Also, on a more general note:
>
> >> Some canopy materials have bad interactions with polarized lenses.
> >> When I was training in a Diamond DA-20 I made the mistake of wearing
> >> polarized lenses once and was treated to a wonderful changing moire
> >> pattern all over the canopy, as I turned my head - ugh!
>
> >> So check your canopy as well as your PDA, before you drop a lot of
> >> dough on fancy lenses!
>
> >> --Noel
>
> > And last but not least, with polarized lenses reflections are suppressed.
> > That means that you easely miss a sun reflection in the cannopy of an other
> > glider.
> > Missing other traffic means an increased risk of collission.
> > No polarized glasses for me in the cokpit!!
>
> It is possible that you might miss a sun reflection on a glider.
> However, polarized gliders make the sky much darker, so in general they
> make other gliders stand out. *They also help with the visibility of
> distant clouds.

I wear a blue blocking polarized lens. The combination of blue
blocking and polarizing significantly darkens large parts of the sky
makes white gliders stand out and increases cloud contrast greatly,
making wisps and haze domes visible as well.

The downside is color shifts that may affect things like field choices
in landouts in some situations, but you get used to this quickly.
Moire patterns from stress in canopy can be a problem sometimes but
with all the Meccaplex canopies I've flown with I have never seen a
problem with this. One particular side window in my Tundra is another
issue. Some powered aircraft windows with complex coumpount curvatures
may be worse than glider canopies.

Having a really good pair of sunglasses also cuts down on eye stain
and makes you more likely to see other aircraft. The old chestnut
about speculative reflection and it's importance in detecting other
aircraft keeps coming up, the scientific report often cited for this
is far from convincing.

Darryl

[jim archer]

On Apr 6, 10:13*pm, Darryl Ramm > wrote:
> On Apr 5, 10:28*am, Greg Arnold > wrote:
>
>
>
>
>
> > On 4/5/2010 1:27 AM, Jip wrote:
>
> > > > *wrote in message
> > ....
> > >> Also, on a more general note:
>
> > >> Some canopy materials have bad interactions with polarized lenses.
> > >> When I was training in a Diamond DA-20 I made the mistake of wearing
> > >> polarized lenses once and was treated to a wonderful changing moire
> > >> pattern all over the canopy, as I turned my head - ugh!
>
> > >> So check your canopy as well as your PDA, before you drop a lot of
> > >> dough on fancy lenses!
>
> > >> --Noel
>
> > > And last but not least, with polarized lenses reflections are suppressed.
> > > That means that you easely miss a sun reflection in the cannopy of an other
> > > glider.
> > > Missing other traffic means an increased risk of collission.
> > > No polarized glasses for me in the cokpit!!
>
> > It is possible that you might miss a sun reflection on a glider.
> > However, polarized gliders make the sky much darker, so in general they
> > make other gliders stand out. *They also help with the visibility of
> > distant clouds.
>
> I wear a blue blocking polarized lens. The combination of blue
> blocking and polarizing significantly darkens large parts of the sky
> makes white gliders stand out and increases cloud contrast greatly,
> making wisps and haze domes visible as well.
>
> The downside is color shifts that may affect things like field choices
> in landouts in some situations, but you get used to this quickly.
> Moire patterns from stress in canopy can be a problem sometimes but
> with all the Meccaplex canopies I've flown with I have never seen a
> problem with this. One particular side window in my Tundra is another
> issue. Some powered aircraft windows with complex coumpount curvatures
> may be worse than glider canopies.
>
> Having a really good pair of sunglasses also cuts down on eye stain
> and makes you more likely to see other aircraft. The old chestnut
> about speculative reflection and it's importance in detecting other
> aircraft keeps coming up, the scientific report often cited for this
> is far from convincing.
>
> Darryl- Hide quoted text -
>
> - Show quoted text -

I have a pair of Oakley's with black iridium lenses, nonpolorized, I
believe they make that lens in both. I find them to be not dark
enough on blue days in the Southwest, even though they are supposedly
the darkest lens Oakley makes. I can see my 4700 IPAQ fine through
them. I like them, it's a pleasing accurate lens, just wish they were
darker.

[Martin[_5_]]

On Apr 4, 8:47*pm, Michael Reid > wrote:
> Has anyone had problems seeing their PDA while flying with Polarized
> lenses?

It's very iffy, and I wouldn't do it. My iPhone, iPad, camera LCDs
and Garmin G1000 all go dark at some angles when I wear polarized
sunglasses. I fly with non-polarized glasses for this very reason.