Handful of Apple Vision Pro units develop identical crack in cover glass

Post by postalrat » Fri, Feb 23, 2024, 4:41 PM UTC

saurik wrote: post #19

postalrat wrote: post #13

Why is it glass with a plastic coating instead of solid plastic? Apple's use of glass has to be part of a scheme to make money replacing glass parts.

But plastic easily scratches? The real question is why it is plastic over glass instead of plastic under glass. Though, I'm kind of thinking they might have realized this could happen and so wanted to safety of the plastic in front of the glass lest users accidentally cut themselves on the broken glass :/. https://youtube.com/shorts/kuiwxZS4GJE https://youtube.com/shorts/5Wsmz7sjOb4

Post by givinguflac » Fri, Feb 23, 2024, 4:42 PM UTC

sandworm101 wrote: post #2

>> The reports all mention that the crack became visible suddenly and for no apparent reason, after the headsets had been connected to the external battery pack and stored overnight (some in Apple's Travel Case) with the soft front cover attached. It is glass. The device was being charged, which means some heat gradient between the charging battery and the outside world. That thin 3d-shaped glass cracks under thermal…

Post by skyyler » Fri, Feb 23, 2024, 4:44 PM UTC

jdc0589 wrote: post #20

postalrat wrote: post #16

Earlier quoted context omitted.

Polycarbonate would be a better choice than plexiglass/acrylic. What advantages does glass have? More likely to break and more repairs?

scratches. its all about scratches. any poly will scratch pretty easily compared to glass, which is a bad thing when its a lens you are looking through. You could make the argument they could just design an easily replaceable poly lens at a reasonable price, but.....its 2024 device manufacturers hate the idea of any user replaceable parts.

Post by fishpen0 » Fri, Feb 23, 2024, 4:59 PM UTC

postalrat wrote: post #13

Why is it glass with a plastic coating instead of solid plastic? Apple's use of glass has to be part of a scheme to make money replacing glass parts.

Post by throwway120385 » Fri, Feb 23, 2024, 5:08 PM UTC

postalrat wrote: post #21

saurik wrote: post #19

Earlier quoted context omitted.

But plastic easily scratches? The real question is why it is plastic over glass instead of plastic under glass. Though, I'm kind of thinking they might have realized this could happen and so wanted to safety of the plastic in front of the glass lest users accidentally cut themselves on the broken glass :/. https://youtube.com/shorts/kuiwxZS4GJE https://youtube.com/shorts/5Wsmz7sjOb4

I wear glasses and every lens I've ever owned has been some type of plastic. Yes small scratches add up over a year but it isn't that bad. The coatings they have do a pretty good job to reduce scratching. Apple is using thin glass covered with a soft plastic. Why possible advantage could that ever have over solid plastic with an anti-scratch coating?