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New Display Technology Corrects For Vision Defects

Unknown Lamer posted about 6 months ago | from the fuzzy-pixels dept.

Displays 28

rtoz (2530056) writes Researchers at the MIT Media Lab have developed a new display technology that automatically corrects for vision defects without requiring glasses or contact lenses. This technique could lead to dashboard-mounted GPS displays that farsighted drivers can consult without putting their glasses on, or electronic readers that eliminate the need for reading glasses. The display is a variation on a glasses-free 3-D technology: a 3-D display projects slightly different images to the viewer's left and right eyes. Similarly, this vision-correcting display projects slightly different images to different parts of the viewer's pupil.

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Honey...have you seen my 3D displays? (3, Funny)

turkeydance (1266624) | about 6 months ago | (#47578327)

Did you leave them in the car, again?


Anonymous Coward | about 6 months ago | (#47578329)


Personal computers (2)

TWX (665546) | about 6 months ago | (#47578471)

This would be really nice in the personal computer realm, be it laptop or desktop, assuming that it fits in those form-factors.

I barely need glasses to drive, for distance. I can read books held in my hands without glasses. Laptops and desktops are every so slightly too far away to usually be able to do that. I would love to be able to ditch the glasses when at my desk at work.

Re:Personal computers (1)

R3d M3rcury (871886) | about 6 months ago | (#47578721)

I would love this for my phone.

I am nearsighted. I have no problem reading my phone but I have problems seeing things that are far away. So I wear my glasses when I drive, bike, or go to movies. It's not too bad--I have driven without my glasses by mistake before with no major collisions. I've seen movies without my glasses and I can tell what's happening on the screen. But having glasses on definitely helps.

So if I'm nearsighted, why would I need this?

Because, with my glasses on, I have a hard time focusing on close things--like, say, my phone. Yes, I know, the answer is bifocals. But wouldn't it be cool if my phone could look at my face, go "Oh, look, he's got his glasses on!" and adjust the screen appropriately for my eyes behind the glasses?

Already a Standard Feature (1)

Anonymous Coward | about 6 months ago | (#47578573)

Simply press "+"

Re:Already a Standard Feature (0)

Anonymous Coward | about 6 months ago | (#47578583)

Simply press control "+"

Re:Already a Standard Feature (0)

Anonymous Coward | about 6 months ago | (#47578897)

Simply press "+"

Says the AC that doesn't really need to wear glasses. It's not fine print needing enlargement; although that has some value only as a method of last resort. It's out of focus at any size -- if it gets too large, you've lost the big picture.

Might be nifty... (1)

The Technomancer (3649405) | about 6 months ago | (#47578659)

...but sometimes I really wonder how disconnected from reality people are that think a reader featuring this display is going to replace a ten-buck pair of reading glasses you can get at the drug store, or thinks that by the time this gets cheap enough to put in a dash-mounted GPS display that those will even still be a thing. In-car dash-mounted GPS devices have pretty much already been replaced by cell-phones and built-in displays. Criticisms of the possible uses in the summary aside, seems like this would be good for computer displays (especially laptops) and TVs, and would definitely have military applications.

Meanwhile, in nVidia land... (1)

Mister Liberty (769145) | about 6 months ago | (#47578697)

my GPU fell off the bus. Now there's a vision defect.

was it the #16 bus? (0)

Anonymous Coward | about 6 months ago | (#47580009)

I ride the PCI express sometimes. The bus driver can be a bit unstable sometimes, and he's been known to kick all the passengers off if anyone tries to enter or exit before the bus reaches a complete stop.

I don't get it (2)

thieh (3654731) | about 6 months ago | (#47578763)

I suppose use cases like people reading over my shoulder or sharing a screen are bound to be plentiful. Whose vision will it adjust to if it is automatic?

Re:I don't get it (1)

BadgerRush (2648589) | about 6 months ago | (#47581589)

It won't ajust automaticaly. According to the video the solution has a hardware component and a software component. The software is configurable and can be setup to different prescriptions (or the lack off), but the hardware (a lensing film to be placed on top of the screen) is specific to one prescription.

But, even withtout the flexibility to ajust to other people's sights, I think this technology has a huge potential in very personal devices like mobile phones. I believe many people would gladly give up the avility to show their phone to other people, in exchange to the added ability to not have to fumble for their reading glasses every time they want to check something on the screen.

Re:I don't get it (1)

thieh (3654731) | about 6 months ago | (#47582153)

Yay for privacy screen just by virtue of being too blurred to be read by anyone else.

Ookkaayyy... (0)

jpellino (202698) | about 6 months ago | (#47578765)

but if I need those glasses for the rest of reality, wouldn't I need to take them off just for looking such a screen so that the glasses aren't duplicated (hence negating) what the screen cover does?

Re: Ookkaayyy... (0)

Anonymous Coward | about 6 months ago | (#47579357)

not everyone can afford glasses you elitist pig

Re: Ookkaayyy... (0)

Anonymous Coward | about 6 months ago | (#47579375)

Especially after they finish paying for expensive adaptive focus displays. Duh.

Re:Ookkaayyy... (1)

BadgerRush (2648589) | about 6 months ago | (#47581605)

What about people who need "reading glasses". Those people navigate the rest of reality very well without their glasses (actually puting their glasses limits their reality navigation ability), those need their glasses only to read and I bet many would apreciate a phone that you can just pull out of the pocket and read instead of also pulling the glasses from the other pocket.

You've lost me (0)

Anonymous Coward | about 6 months ago | (#47578807)

"This technique could lead to dashboard-mounted GPS displays that farsighted drivers can consult without putting their glasses on"


Um - These drivers still need their glasses to.... Um....DRIVE. What problem do we think is being solved here?

Re:You've lost me (1)

brucek1999 (2021898) | about 6 months ago | (#47579121)

The only reason a FARsighted person needs glasses to drive is to see the dashboard controls (speed and gauges) or GPS. As those continue to move towards digital displays, this does make some sense. I love the promise of this tech because wearing my progressives to drive is tiring, especially at night. Now, assuming they can make it work in such a way that it is not equally tiring AND can be engineered to be affordable... sign me up!

Re:You've lost me (2, Informative)

mcswell (1102107) | about 6 months ago | (#47579217)

Um - no. I'm farsighted, and like all farsighted people, I can see things at a distance (other cars, say, or the cell phone in that driver's hand) just fine. It's the text on my own cell's gps that I can't see without my reading glasses. (I have 20-14 vision, meaning I can see at 20 feet what the average person needs to stand 14 feet away to see. I just can't focus up close, meaning a foot or two away.) So no, I do NOT need my glasses to drive. And unlike you, I'm not lost.

Good for HMD's (1)

drkim (1559875) | about 6 months ago | (#47579387)

This would be great for HMD's too. You could design them to be worn without having to accommodate glasses.

How does this work exactly? (1)

zennling (950572) | about 6 months ago | (#47579415)

I need my glasses to read detail - the only way I am going to be able to see is with giant letters. Putting some software on to a box on my dash doesnt change distance from eyes to the dash, thus the focal length is the same. No amount of pixel shifting is going to allow my eyes to focus on it and resolve the image sharply. this might work for people who are only very slightly farsighted.

Re:How does this work exactly? (1)

OolimPhon (1120895) | about 6 months ago | (#47579987)

Yep. I have different degrees of long-sightedness in each eye plus varying amounts of astigmatism. How is a gadget like this going to show each eye what it needs?

Since I'm already wearing glasses to drive with, my eyes would have to adapt again to view whatever this gadget is displaying. They're already doing that without spending money on the gadget. FAIL.

Re:How does this work exactly? (1)

Overzeetop (214511) | about 6 months ago | (#47580251)

I'm still not quite sure how it is they've solved this issue they claim, however the ability to selectively transmit information to make the image seem to appear between the eye and the screen is the wrong solution. For those over 40, the problem isn't moving the screen closer but rather needing it further away. I have this happen if I put my phone too close in the car - I can't effectively see the GPS prompts or warnings without a second or so of re-focusing effort, and even then it's a challenge with my normal glasses on (seeing it without my glasses is fine, but then distant objects are indistinct).

What's needed is to be able to focus on this object as if it were further away than the screen.

Re:How does this work exactly? (1)

BadgerRush (2648589) | about 6 months ago | (#47581637)

Puting your glasses also don't change the distance from your eyes to the objects. Instead the lenses bend light so it is indistinguishble from light coming from another distance, and that is exactly what this solution does, in simple terms it is like putting the glasses on the device instead of on your face.

application for HUDs and AR (0)

Anonymous Coward | about 6 months ago | (#47579867)

Could this technique be used to build wearable displays that you don't have to focus on? Like a collimated HUD without a projector. Combined with an eyetracking cam it could even follow your focus.

Every day... (1)

GrantRobertson (973370) | about 6 months ago | (#47582263)

Slashdot reminds me of just how ignorant and yet unjustifiably arrogant and egotistical most tech nerds are. It sickens me to see so many people without the slightest degree of empathy or ability to understand that their limited experience is not (can not) be the be-all-end-all of reality.

There are a large variety of vision problems. Many make it difficult to change focus quickly or at all. How something as basic as this can escape so many people would be funny if it weren't so indicative of a general trend of horrible education and willful ignorance.

I know. If it weren't for idiots and trolls then /. wouldn't be /.. But if your traditions suck, then maybe you should really try to ditch them.

software only! (0)

Anonymous Coward | about 6 months ago | (#47584351)

can a pure software solution create an alternative to hardware/software combination to improve vision defects?

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