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Diamond eyeglasses? The lenses would still be cheaper than the Luxottica frames.
by biomcgary 2y ago
Diamond eyeglasses? The lenses would still be cheaper than the Luxottica frames.
- passwordoops 2y agoLike Luxottica wouldn't immediately roll up the diamond lens company...
- Balgair 2y agoI know this is a bit of a throwaway comment, but I'd never thought of diamonds for eyeglasses. And, honestly, that would be really really cool. Yeah, there are other materials with better refractive indices and that are tougher and cheaper and dont shatter. Sure. But if we can get diamonds down to something that could be made into lenses for the (very high end) retail market, man, that would just be so cool!
- LtdJorge 2y agoI'd rather use the diamonds to manufacture the laser machines that do eye surgery and remove glasses lol
- shiroiushi 2y agoNo, because eye surgery can't take the place of corrective lenses in all cases: it's not a full replacement for glasses or contacts. For people the farther ends of the spectrum (either needing very light correction, or extremely heavy), surgery doesn't work, or for very high prescriptions it only helps but it's not enough by itself. (Ophthalmologists please feel free to chime in.) And there's other reasons people aren't eligible for surgery, such as being too young.
- kazinator 2y agoLaser eye surgery cannot fix the problem of the lens having become inflexible and losing its focusing range. In such a case, surgery can only change where the focal distance lies.
- shiroiushi 2y agoLaser eye surgery won't do that, but intraocular lens implantation could. I think those lenses still don't work that great for reading, but I imagine they will eventually.
- gosub100 2y agoA lot of people regret LASIK. Dry eyes and diminished night vision are the top complaints.
- parineum 2y agoI know of these as side effects but I don't know if they are ubiquitous and people prefer them to glasses or of they don't happen to everyone. Do you happen to know amd know about what the rate of regret is?
- gosub100 2y agoI don't have the data. I think it depends on the severity of the correction. Also, age factors in, if you get it too young your eyes can go blurry again by middle age.
- mathgeek 2y agoYou probably don’t want more conductive lenses, though.
- _ph_ 2y agoI am pretty sure, diamonds would make awful eyeglasses. While their index of refraction is high, which makes glasses thin, their chromatic dispersion is high. That is the very thing which makes their glitter so colorful. For good optical systems you want to try to reduce the dispersion, to 0, if possible. Another story is the scratch-resistance. For that it would be sufficient to coat the surface of the lens with a thin layer of diamond. Which is done in several applications.
- amelius 2y agoMaybe we can have diamond-based scratch protection on smartphones?
- callalex 2y agoI wonder if the process would be cheaper than the current high end (smart)watch and lens practice of sapphire coating?
- namibj 2y agoNo, it's substantially more expensive. At least for anything too large to just cut out of HPHT chunks, just due to CVD at optical grade being pretty slow.
- Animats 2y agoDiamond coated glass is available and is sometimes used for checkout lane scanners.[1] It's not common. [1] https://www.diamonex.com/wear-resistant-glass/ https://www.diamonex.com/wear-resistant-glass/
- opan 2y agoDon't we already have good scratch protection? Cracks from drops seem like the main issue.
- perth 2y ago
- cainxinth 2y agoSounds like something from Neal Stephenson’s The Diamond Age.
- divbzero 2y agoHow about diamond smartphone screens? Beats Gorilla Glass or sapphire.
- Lucasoato 2y agoLuxottica is top tier.
- ykonstant 2y agoTop tier monopolist that needs to be broken up, preferably with a sledgehammer.