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Apple Watch Ultra Screen lamination defect Check Yours!
- Thread starter harleymhs
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Ever wonder why some camera lenses cost more than others? This issue exemplifies one of those reasons.
Glass flows with temperature and gravity. Look at panes of glass in old houses and furniture and you'll see ripples.
Not all glass is equal. Not all glass is polished perfectly. Some yes, but those applications certain call for it.
All my watches from Series 0/1 are not perfectly perfect, they all have a ever so slight ripple when I shine a light on them. I checked it based on this thread.
Glass flows with temperature and gravity. Look at panes of glass in old houses and furniture and you'll see ripples.
Not all glass is equal. Not all glass is polished perfectly. Some yes, but those applications certain call for it.
All my watches from Series 0/1 are not perfectly perfect, they all have a ever so slight ripple when I shine a light on them. I checked it based on this thread.
It is then cut with a diamond saw, grinded and polished to the finished “glass” product.
But it’s still NOT glass and the problem described has nothing to do with the crystal itself but the lamination interface between the display and the crystal.
The polishing process creates imperfections.
Polishing pads and the slurry used will also create artifacts such as waviness (as does heat and cooling), pitting and scratches.
See it every every day on every wafer I look at.
I hope people don’t look at their iPhones so closely, they will surely disappointed.
It’s on iPhones too, but to a MUCH much lesser degree. Interesting take that it’s the sapphire, it certainly appears to be the lamination of the oled, you can especially see it around the edges of the oled lamination to the glass.
It’s a compound issue. Neither of the two will be perfect at the price points we are talking about.
If the sapphire uniformity isn’t perfect, as the light passes through the lamination it can still refract light differently across the surface. On the other side as the light passes through the imperfect lamination it can refract differently and reflect the refracted light back creating the presentation the original poster expressed.
Interesting. It looks rippled like a poor tint job on a car, or anything that was glued on and did not adhere completely flush, yet as others say, does not appear to distort the imagine at all.
Quite possible, wonder if it’s due to the wavelengths we can actual see from, each pixel. Or that tge pixels are so small that the distortion is minimal.
A RLGN ring laser gyro navigation system had a positional drift inherent to it.
The mirrors vibrated for several reasons. The vibration was cancelled out in the math model.
However, one of the mirrors had a polishing blemish. This caused a slight light path change that was unexpected in the math model causing a slight successive approximation of distance traveled.
Since it was in a training lab it was not an issue.
The first reply from the design engineers, seeing a drift is normal tied up to the pier. That’s all good but this unit was in a building with a 15foot reinforced foundation.