Laser-based Virtual Retinal Display 114
denmon writes "Seen on memepool: The HIT Lab has produced a virtual retinal display that paints a color VGA image directly on the retina using a low-power laser. They intend to miniaturize the components into a head-mounted display that will 'generate an inclusive, high resolution 3-D visual environment in a device the size of conventional eyeglasses'. Seems like Snow Crash gets closer every day...
" Screw big flat screens, I want my interface right on
my eyeball. Excellent.
Not soon enough! (Score:1)
do the obvious if you want to email me
burnin (Score:1)
Naaah.
Speaking of Snow Crash... (Score:1)
I just read SC and I've rarely been so ambivalent about a novel. It was half really cool (some of the VR stuff was neat, the Mafia stuff was funny and the "neurolinguistic programming" was interesting) and half really really lame and overdone (the rest of the VR stuff, the heavily glossed over details of neuro-programming and one-dimensional characters).
But the worst was the shaggy-dog ending. A whole novel of build-up and then pfft at the end.
But I figured Neal was just starting as an author and so could be forgiven a few things. I then picked up Diamond Age. Very good beginning. Pretty strong middle. Very very loose end, what there was of it. Nothing wrapped up, no questions answered, all characters left up in the air. It's like he was told "Stop on page 450, no matter what". Lame.
I will probably read a third Neal Stephenson book just to see if he's improved, but if I get burned a third time, it's quits for me.
Semi-off-topic (Score:1)
The initial technology was developed by a little bit of WA state seed money and a lot of money from the WA-based company that sponsored the research (Microvision)
Don't assume the Feds fund all the ground breaking research in the world...sometimes things are a little too weird even for DARPA.
joel kollin
(one of the guys on the original VRD patents)
On your eyes.... hmm (Score:1)
I'm not to sure about this one.. I'm sure my eyes will already go bad by looking at 10-15 computers a day.... ouch..
Side note.... I wonder how quake would look.... =)
ChiefArcher
The good new and the waiting.... (Score:2)
So I guess the bad news it that it'll be a while before this stuff fits onto a light HMD, they made noises about it being 5 years away, maybe more. Also, they're having trouble pushing the resolution. Given that the human eye has a res of about 10000x6000 (depending on who you talk to) and this display is 640x480 then it only covers a small portion of the visual field. Given 5 or so years maybe we'll have cheap hardware to generate graphics at that res too! That's the frustrating bit.
The good bit is that the colour clarity is excellent and the picture is crystal clear and rock solid. And the extraordinary thing for me is that without my glasses it's still perfectly in focus! Because it writes directly onto the retina, effectively it doesn't use the lens in your eye, so people with very bad vision still see a beautifully clear image. It's kind of odd to take off my glasses and the whole room is a blur (mostly) and then to suddenly see a diamond sharp image looking like a flat panel screen hanging in space about 6 feet away.
There is also some problems with spherical aberration if they try to may the image too wide and getting the scanning components to handle higher (and the right) frequencies. However, *most* of the hard work has been done and it seems to be mostly a clear road of progressive minaturisation untill it is a head mounted "heads up display" (with optional flip down cover for an immersed view).
It doesn't take long to realise that this is the way most computer displays will go. It's not a matter of "if", but "when".
cheers
Commercial Development by Microvision -- (Score:1)
They have some interesting ideas for laser projection systems as well.
Virtual Retinal Display prototypes (Score:1)
I remember them talking about how the greatest limitations to the product were minaturized color lasers, and they were simply waiting for reduced-size versions to become commercially available. It looks like this is still their primary weakness. They are not developing the lasers or scanning hardware themselves, so they have to wait for it to shrink.
For this simple reason, it's probably going to be a few years before anything is commercially available. Besides, it'll give us time to roll out high-bandwidth net access. Snow Crash here we come!
good reason to learn vrml (Score:1)
I guess that now I'll have to deliberately put my web pages in a different room, to make me get up ;)
Seriously though, if you're using this and moving around, you'd better have a really good model of the environment or a camera mounted on the outside of the headset or something. Otherwise you'd be forever bumping into things.
Anyway, MIT should to go over (yeah, all of 'em) to You Do It Electronics in Needham, and build the laser display into the shell of the Sony Glasstron [sony.com]. Which is not very good, and way overpriced, but looks very cool. I played with one over there.
Don't believe the 52" thing though. It looked like a 20" screen to me....
good reason to learn vrml (Score:1)
Truly 3D (Score:1)
I have a funny feeling that this would end up being a truly disturbing quake experience, and a truly nauseating descent experience... i think i'd want to be wearing a seatbelt when playing games. heh.
Microvision is the Company started by these folks (Score:2)
Meanwhile, Mvis has been kicking out some neato jobs with the DoD. They just teamed up with Boeing to create a VRD for helicoptor cockpits.
Display technology really hasn't advanced a whole heck of a lot in the last 10 or so years (just incremental improvements). This technology is one of the truly inovative things happening in the display world.
And, Microvision is a publicly traded company: MVIS on NASDAQ.
www.mvis.com
my 2 cents,
scottwimer
Eyes going bad? (Score:1)
~luge
Soon enough... (Score:1)
Soon enough we can just sit in our bed and be lazy on those Sunday afternoons without even getting out of bed, or taking the covers away, or doing anything.
We'll have the images going to our retina, anything we wanted to type or links we wanted to go to would automatically be picked up by brain sensors.
Shrug, I dunno, I'm kinda worried about a world like that. Just makes me uncomfortable. Anyone else get that feeling?
Probably won't happen in my lifetime anyway.
Additional benefits... (Score:4)
One thing that has been mentioned locally that has a great deal of significance for myself is that the retinal display technology has some unforseen benefits, such as the ability to project images onto previously damaged retinas.
A member of the board of reagents came by in a tour group to preview the technology they were funding. The board member removed his glasses when it was his turn and looked into the display. Stunned, he became excited and starting asking quite a few questions and asking about how it was working, seeming quite excited. It turned out that he (in an accident much like my own) had been involved in an accident that had destroyed his retina, the surface upon which this technology projects it's images inside of the eye.
The retinal display, however, was able to bypass the previous organic damage and feed information almost directly to the optic nerve for perception. Result: He was now able to see in stereo, where he had spent the previous portion of his life with only the ability to see out of one eye.
Since then, the project has incorporated at least one member of the medical staff from the UW Physicians Network, as this has some exciting possible medical uses for the future.
Exciting, no?
yikes! laser my head off man! (Score:1)
also, what if you had a pair of these glasses and you switched them with someone elses glasses. that person might be alittle suprised to find themself in the middle of a quake battle when they were only trying to read the morning paper... talk about a bad trip
Why lasers? When mini-LCDs are far better? (Score:1)
Soon enough - already (Score:1)
People have at least the option to be active on the net. With television, the only activity is choosing the channel and getting fat on junk food.
Snow Crash & Virtual Light (Score:1)
I haven't thought of them in years!
Wait for the ergonomics tests! (Score:1)
So I wouldn't rush to test this out - I'd hope that this would be tested for ergonomic and health issues, but no doubt it will be put on the market and then a few years later any health problems will surface.
It sounds entertaining but inherently problematic - what if they discover people's retinas aren't so tolerant to this sort of continual illumination? What if your retina gets a pattern 'burnt in' like the old Mac toolbar on the monitor - will you need a retina saver program to prevent this?? I know someone who may end up blind as a result of macular degeneration (a disease of the retina) so perhaps I'm biased - for more info on this see http://www.maculardegeneration.org/.
Excuse my cynicism, but I had RSI as a result of the last wave of new HCI technology, so I'll wait this one out.
and then... (Score:1)
Virtual Light? (Score:1)
Speaking of Snow Crash... (Score:1)
It wouldn't really be Stephenson without it.
I can't think of a better ending to his books than what he provided. Why not just end them? I am glad I read each of them, even if I was disappointed when the prose just ended on the last page.
Joe
Sharing (Score:1)
During the week, I'm a computer geek... (Score:1)
Sure I'll wear the cybershades Monday to Friday, but, come the weekend, off they come, on go the Oakleys, I'm swinging over a thousand-foot drop by three fingers and fibre-channel disk arrays, TCP/IP routing and FDDI interfaces are definitely NOT on my mind.
Adrenalin. Either you choke on it or thirst for it!
The Dodger
re: yikes! laser my head off man! (Score:1)
Laser-Based Retinal Display. (Score:2)
I have noticed there is much more work being done on head-up displays (glasses) for body-worn computers and perhaps this is a better compromise.
For example, HUD projected on safety glasses would meet all requirements for hazardous working...providing eye protection and...via computer and HUD...line diagrams, method, even remote, expert help.
I can see this being of real and immediate use in the petro-chemical industry. Unions, management and people would take to it.
It's a win-win situation.
Who are the developers in the field...just Microvision? Whoever they are, watch their share prices...or even better...invest your nest-egg.
...the laser projected screen covers 130 degrees of vision, whereas HUD is more conventionally 45 degrees.
Semi-off-topic (Score:1)
Why lasers? When mini-LCDs are far better? (Score:1)
This news is nothing news anyway. Some of you may remember those retinal scanning LED HMDs from as far back as 1990. (Cannot remember the name of the manufacturer) The same company later made the display for the Nintendo Virtual Boy and some wireless handheld fax machine (still in production) you held up to your eye to view.
- HuangBaoLin
Additional benefits... (Score:1)
How small can something like this be made? Self contained in a pair of sunglasses - including cameras, projectors and powersource?
Ultimatelly, could these be implanted? I presume the tech is much like a TV, so there's quite a bit of power needed, as well as a non-negligible aperture size.
On the flip side - if code can be written to fry a monitor, could this fail and damage the eyes?
3 stooges come to mind (Score:1)
POKE!
For disabled people too (Score:1)
Why lasers? When mini-LCDs are far better? (Score:1)
Retinal scanning lasers minimize the eyestrain associated with viewing a head-mounted-display 14-hours a day. This is critical for wearable-computer applications. None of the mini-LCDs pass this test.
>Some of you may remember those retinal scanning LED HMDs from as far back as 1990.
The LED HMDs from 1990 were made by ReflectionTech aka Reflection Technology. The product was called the P4. It was not retinal scanning. It was an excellent product -- by far the best head-mounted-display technology yet mass produced -- but not anywhere near the quality of VRDs.
Don't bother looking for the product -- you won't find it. ReflectionTech sold the patent recently to a company in Japan. If it's ever produced again you'll know about it.
Essential reading:
http://wearables.www.media.m it.edu/projects/wearables/ [mit.edu]
The good new and the waiting.... (Score:1)
Not to mention a problem with whiplash "if they try to make the image too wide." Not a joke. People move their heads a lot when viewing large desk-top monitors. If you view a wide screen you automatically move your head to view things on the extreme right or left. If the image moves with your head... chain reaction and... snap!
Of course, as Thad Starner points out, this is why HIT's body-stabilized-spatial-information-display research project is so important to the future of wearable computing (where monitor resolution isn't so important):
http://www.hitl.washington.edu/res earch/wearint/ [washington.edu]
Additional benefits... (Score:1)
It's nice to know that my Alma Mater is spending the HUGE amounts of R&D money it gets on projects that have a positive social aspect. This is exciting technology, and I don't mean from a Lawnmower Man perspective, either. As an EE, I studied quite a few technoliges that were touted solely for the sake of increasing bandwith/power/MIPS/etc... and that to me, seemed more like science than engineering. The application of technologies such as these, especially in ways that enable people to overcome disabilites, is phenomnial, and very exciting!
It's hearing about projects like this one that make me look forward to going back to grad school.
Cheers,
Ken Crandall
ken.crandalL@mindspring.com [mailto]
good reason to learn vrml (Score:1)
good reason to learn vrml (Score:1)
Speaking of Snow Crash... (Score:1)
BTW, anyone else read The Big U? Funny book... completely different than his other stuff though. I had to look it up on the net to make sure it was same Neal Stephenson.
Apparently he's kind of ashamed of it (or so I've heard) and keeps it kinda hush-hush. Of course, what do I know.
Great news!; Human reagent? (Score:1)
Just kidding: I assume it was a human reagent, not a chemical reagent.
You must have meant "regent".
yikes! Never EVER let laser light into your eyes (Score:1)
when you get scanned at a supermarket checkout counter? I can say from experience that you shouldn't place an eye where two scan stripes intersect. Minor retinal burns healed in a few weeks.
However: 1) Laser light is light, and by no means as harmful as ionizing roadiation; its danger is (ordinarily) that lasers are extremely bright. Apparently even a modest laser pointer has a brightness about equal to the sun.
2) Low-cost solid lasers have a peak wavelength that is already fairly well down on the eye's spectral sensitivity curve; they are, in a manner of speaking, so extremely red that they don't seem as bright as they actually are. CD player lasers are an extreme example; their subjective brightnesss is downright dim, because they are just barely within the visible spectrum, so to speak.
There are two certain things in this world... (Score:1)
Welcome to Borg Land (Score:1)
Additional benefits... (Score:1)
I've seen this before off of the wearable computing list (wearables.blu.org). This will be an awesome thing to have when it's cut down to size.
Additional benefits... (Score:1)
Their goal is to eventually have it head-mountable. If not as unnoticeable as Mann's glasses, or the microoptical's, it will probably get small enough to wear without extra support. I can almost guarantee that eventually it will get unnoticeably small.
good reason to learn vrml (Score:1)
On your eyes.... hmm (Score:1)
wearcomp 7 (Score:1)
Atleast it was spent on something cool! (Score:1)
Uhhh... (Score:1)
How about contacts? (Score:1)
I dunno, photons is photons. You're exposed to photons all the time...I can't think of a reason that getting your retina bombarded with coherent light would be any worse than getting them bombarded with regular light. Of course the power output would be VERY VERY VERY low. 100 watts is a lot of laser, but it's not a lot of lightbulb.
My uneducated guess would be that coherent photons (again, of very low power) hitting your eye would be a lot less bad than having stray cathode rays hitting your eye (like from this CRT we're all sitting in front of).
hhhmmmm...wwhhite searing hot point of light... (Score:1)
Doctor: Well, don't go like this.
I don't think that there's any reason to fear having a laser rasterize on your retina. It's no different from the photons that you encounter all day, the difference being that these photons happen to all be oriented the same way. Of course you wouldn't want high power outputs, but fuses are easy to design. This is cool technology, and there's no engineering reason that it couldn't be made perfectly safe.
hhhmmmm...wwhhite searing hot point of light... (Score:1)
Eyes going bad? (Score:1)
That is true of conventional 3d goggles, but the type being experimented with in the story is direct retina feed. Meaning your eyes don't focus at all. It's projected directly on your retina, this would be analogious to jacking a display directly to your brain almost. Although they diffinetly would need to work out eye detetion menconisms for something like this so that the display can respond to movement of your eyes, otherwise you could quickly develop lazy eye, I would imagine or some other weird symtoms.
Semi-off-topic (Score:1)
Snow Crash (Score:1)
Showed up in Discover Magazine ~1 year ago (Score:1)
Very impressive!
Uh, maybe not invest your nest-egg (Score:1)
"The Company has incurred substantial losses since its inception and expects to continue to incur significant operating losses over the next several years."
Maybe one ought to look at fundamentals before randomly investing in a company who MIGHT develop a cool product 5 years away
James
Acually them flat monitors look pretty kickass (Score:1)
And I don't know about lasers on my eyeball. I have a surge protector but I don't want to rely on it *that* much. I have bad enough vision right now.
--
totally different (Score:1)
This retinal laser display does not use a screen, it produces a virtual image with focused laser light, which is only a valid image at the point where the eye is. This virtual image can exactly simulate a screen 6 feet away, or one 3 miles away, or a 3-dimensional scene where you must refocus your eyes to bring different objects into focus.
Try closing one eye, facing out the window and holding your hand three inches from your eye. Look at your hand, then look at something outside (I'll say a tree). Notice how when you look at one, the other is blurry. With a little practice you can focus on either while keeping your eye aimed at only one.
This is why stereoscopic displays are only marginally more convincing than single flat screens. Your focus still follows that of the camera, not that of your eyes. However, with this new display, you could refocus on different objects like the hand and the tree (even in a static display; the machine doesn't need to detect and intelligently respond to the changes in your eye).
Basically, a high-res (I mean really high res, like 100,000 by 100,000) image from this machine would be indistinguishable from a real-life scene.
The really great thing is, most 3D games and other virtual environments already use Z-buffering, so they have depth information readily available. Nobody is going to have to make serious modifications to their software to take advantage of this feature.
Of course, it is important to note that this is not a real sci-fi hologram. The virtual image is, as I said, only valid from one point (the eye). Pixels can't hide behind each other; in real life, when you move your head to the side you can see around obstacles. To add this you naturally need a head mounted diplay with position tracking to create the new image when you move.
Excuse my pedantry, I wanted to cover everything (not my sig, but it should be).
On your eyes.... hmm (Score:1)
because microvision == microbrains (Score:1)
If you want to see a fancy display, let me slap you on the side of the head and you will see virtual star display - neat huh? maybe that'll knock some sense into you NOT to stare into lasers period.
Snow Crash..... (Score:1)
This is a bit basic compared to the John Hopkins.. (Score:1)
At the mo they use external cameras to get the images, but it would mean Neuromancer/Johnny Mnemonic stuff in under 10 years.
Of course, all that will be under medical research, which is why I'm doing medicine. Hehheheh.
wearcomp 7 (Score:1)
YouDoIT still exists? (Score:1)
Touch Screen (Score:1)
(.)(.), ----*(x)(x) (Score:1)
Semi-off-topic (Score:1)
from the tax dollars spent, but most gov't
funded research looks to American private
industry to develop and commercialize new
inventions, the govt doesn't want to be in that
business. How else to get products into the
hands of people then to provide a commercial
incentive?
And when can i get one? (Score:1)
Geordi La Forge and his VISOR?
that sounds primitive compared to this...
How about contacts? (Score:1)