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"main reason for sapphire not being adopted" Edmund Optics sells a sapphire window thats unfortunately round, too thin (2mm) and too small (75 mm about 3 inche
by VLM 9y ago
"main reason for sapphire not being adopted"
Edmund Optics sells a sapphire window thats unfortunately round, too thin (2mm) and too small (75 mm about 3 inches) to replace the glass in an iphone; the primary problem is that far too small optical window costs $650. On one hand a sheet large enough for a phone would cost more, on the other hand industrial production would be cheaper, much handwaving and it could be done but it'll cost $1K per phone, perhaps.
- vilhelm_s 9y agoThere have been phone screens made of sapphire, e.g. there was a special edition sapphire version of the HTC U Ultra (https://www.theverge.com/circuitbreaker/2017/5/4/15544426/htc-sapphire-u-ultra-iphone-galaxy-scratch-resistant https://www.theverge.com/circuitbreaker/2017/5/4/15544426/ht...) which cost 150 Euro more than the glass version. I guess for just screen protection you don't need as high quality as for optical applications.