this post was submitted on 25 Aug 2023
254 points (96.4% liked)
Technology
59329 readers
6303 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I have no idea but I think anything that emit light would drain the battery to quickly.
I would imagine it would more like a e-paper screen.
I have no idea how these work, but one hack idea off the cuff:
You get the light for free. At least when your lids are open; that's how vision works. A cheap digital watch lasts ages on a tiny coin cell because the polarisation of the LCD, which passes or blocks polarised light, takes minimal energy. Stack up a passive polariser, and the active LCD-like layer, (and maybe a second passive layer?) and you can cast selective shadows on the retina.
This gives you monochrome "smart vision" in the same sense as a monochrome Casio wristwatch. No idea how to tackle issues of focus at such a short focal length, or achieving any sort of active display let alone colour.
Maybe the whole thing is a pipe dream crackpot idea.
Light intensity is inversely proportional to the square of the distance. A light that's only a few microns away from your cornea would look incredibly bright even with minimal power.