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> Apple also began dipping batteries in a special dye that could only be seen under a high-frequency light to authenticate them during repairs. That's marketin
by davidhyde 8y ago
> Apple also began dipping batteries in a special dye that could only be seen under a high-frequency light to authenticate them during repairs.
That's marketing speak for "they used invisible ink and a UV lamp"
- reaperducer 8y agoThat's marketing speak for "they used invisible ink and a UV lamp" Considering that Apple is the biggest company in Silicon Valley, and every bar and night club bouncer from Boston to Bangkok has access to UV ink, it’s pretty safe to say that this isn’t just hand stamp ink.
- Cthulhu_ 8y agoIs it possible to make inks that are tuned to very specific frequencies? Any UV lamp (that I expect has a pretty broad spectrum still) would be able to see it, but you need a special one tuned to an exact (secret, but probably easily backwards-engineered) frequency to authenticate the specific ink used. And then they can print a bar or QR code with exact tracking information and history for the part.