4 ms·

https://spectrum.ieee.org/biomedical/imaging/in-the-eye-of-the-beholder https://spectrum.ieee.org/biomedical/imaging/in-the-eye-of-t... IEEE's coverage way bac

https://spectrum.ieee.org/biomedical/imaging/in-the-eye-of-the-beholder https://spectrum.ieee.org/biomedical/imaging/in-the-eye-of-t... IEEE's coverage way back in 2003 and even by then a prototype existed as far back as 91. I've been waiting for people to circle back around to this type of display for about a 2 decades now. I suspect the biggest barrier/reason is aversion to liability and safety of beaming lasers directly into customer eyes.

unishark 7y ago
Lasers have been used routinely to measure the eye for the last 20 years. And everyone making that technology probably toyed with the idea of making a display rather than a sensor because you deal with the same issues. My guess is it has been prophetic patents holding progress back, so hopefully they are starting to expire now.
- deleted 7y ago
  [deleted]
Rochus 7y ago
Right. Still waiting for long term studies about the effects of such retinal displays.
JRKrause 7y ago
I disagree, the biggest barrier to commercialization of this technology is that it's technically infeasible. For the projection to make it through your pupil onto the retina your eye needs to be carefully aligned with the projection beam. This just barely works indoors when you pupil is hugely dilated, now imagine being outside when your pupil is contracted. It's a non-starter.
kiterunner2346 7y ago
JackRabbitSlim says > I suspect the biggest barrier/reason is aversion to liability and safety of beaming lasers directly into customer eyes. Yes, what could possibly go wrong while beaming a laser directly onto the retina?
Darkphibre 7y ago
Me too! Elsewhere in the thread I brought up the HIT Lab that patented the approach in the 90s. I've been waiting for it to come out of patent / become adopted for decades: http://www.hitl.washington.edu/projects/wlva/ http://www.hitl.washington.edu/projects/wlva/

unishark 7y ago

Lasers have been used routinely to measure the eye for the last 20 years. And everyone making that technology probably toyed with the idea of making a display rather than a sensor because you deal with the same issues. My guess is it has been prophetic patents holding progress back, so hopefully they are starting to expire now.

deleted 7y ago
[deleted]

Rochus 7y ago

Right. Still waiting for long term studies about the effects of such retinal displays.

JRKrause 7y ago

I disagree, the biggest barrier to commercialization of this technology is that it's technically infeasible. For the projection to make it through your pupil onto the retina your eye needs to be carefully aligned with the projection beam. This just barely works indoors when you pupil is hugely dilated, now imagine being outside when your pupil is contracted. It's a non-starter.

kiterunner2346 7y ago

JackRabbitSlim says > I suspect the biggest barrier/reason is aversion to liability and safety of beaming lasers directly into customer eyes. Yes, what could possibly go wrong while beaming a laser directly onto the retina?

Darkphibre 7y ago

Me too! Elsewhere in the thread I brought up the HIT Lab that patented the approach in the 90s. I've been waiting for it to come out of patent / become adopted for decades: http://www.hitl.washington.edu/projects/wlva/ http://www.hitl.washington.edu/projects/wlva/