Does any body notice that when wearing polarized sunglasses and looking at the iPhone 5 screen it has a pretty bad green tint? My 4S only had a slight difference. Living southern California I wear sunglasses a lot. I was wondering if it is just my iPhone or others are experiencing the same issue.
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polarized sunglasses and iPhone 5
- Thread starter dckcentaur
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Yep, see my thread here: https://forums.macrumors.com/threads/1449905/
I tested my wife's iPhone 5 and here looks fine so I'm going to try and exchange my phone tomorrow.
I tested my wife's iPhone 5 and here looks fine so I'm going to try and exchange my phone tomorrow.
My 4S had this issue... I noticed some phones have the issue vertically and some horizontally. My 4S would be red and green when turned to landscape mode.
It probably has to do with how the reflective film was originally cut.
I am only theorizing.
If I was turn my iPad on its side, I'd completely loose the screen. Always triped me out when wearing my prescripts.
Here is the simplified explanation:
More than you ever wanted to know about Polarization-
Polarized glasses use a film created from rolls of polyvinyl acetate which has the consistency and thickness of plastic wrap. The plastic is heated and stretched which lengthens the plastic's long chain molecules, causing them to align. It's then dipped in iodine solution which is absorbed into the molecular chains forming long grids of parallel, darkened lines that are not visible to the human eye. The film is then dyed to the color of the desired finished.
For the polarized film to be most effective in sunglasses, it's oriented to reduce the horizontal component of reflected light off a surface. Manufacturers have proprietary formulas for calculating the proper angle.
The iPhone screen is also Polarized- it's supposed to be done to a 45 degree angle allowing the most effective use in both portrait and landscape mode.
But if the angle is off and/or the angle the sunglass manufacturer uses to place their polarization film is set in a certain way, you essentially have two sets of 'invisible' grids that cut out the ambient light and can cause a screen to either darken or undergo a color shift. (take off the glasses and rotate them while looking at the iPhone screen through the lenses and you'll see the color shift and or darkening change).
That's what you are seeing.
And it isn't limited to the iPhone- all products with polarization do it to a certain extent.
More than you ever wanted to know about Polarization-
Polarized glasses use a film created from rolls of polyvinyl acetate which has the consistency and thickness of plastic wrap. The plastic is heated and stretched which lengthens the plastic's long chain molecules, causing them to align. It's then dipped in iodine solution which is absorbed into the molecular chains forming long grids of parallel, darkened lines that are not visible to the human eye. The film is then dyed to the color of the desired finished.
For the polarized film to be most effective in sunglasses, it's oriented to reduce the horizontal component of reflected light off a surface. Manufacturers have proprietary formulas for calculating the proper angle.
The iPhone screen is also Polarized- it's supposed to be done to a 45 degree angle allowing the most effective use in both portrait and landscape mode.
But if the angle is off and/or the angle the sunglass manufacturer uses to place their polarization film is set in a certain way, you essentially have two sets of 'invisible' grids that cut out the ambient light and can cause a screen to either darken or undergo a color shift. (take off the glasses and rotate them while looking at the iPhone screen through the lenses and you'll see the color shift and or darkening change).
That's what you are seeing.
And it isn't limited to the iPhone- all products with polarization do it to a certain extent.
I was going to say my 4S' screen goes completely dark when I've got my polarized sunglasses on. That would explain the differences in experiences.
Keep reading...
I did
You never said anything about all lcd products, just about all "polarised" products.----------
Yes, it's an unavoidable trait of the technology. Any phone will do this.
If you get really lucky, you won't be able to see anything on the screen at all!
That's the way it is on my iPad3 when wearing my Ray Bans. In portrait mode, the screen is completely dark.
Another active discussion going on right now, on first page.
Is it that hard to scan through the current postings?
https://forums.macrumors.com/threads/1449905/
Is it that hard to scan through the current postings?
https://forums.macrumors.com/threads/1449905/