Retinal-Scanning Screen Prototypes
Troed writes: "Microvision demonstrated a prototype display that uses three leds and a mirror to display SVGA
graphics from something small enough to be put into cellphones." Not
a lot of technical details, but what's there looks good. It'll be
a few years at best before the prototypes turn into real products, and
I'm not quite sure I want to beta test this one, but I sure can't
wait for when they are ready for prime time.
three leds and a mirror.
;-)
Ah, progress...
Now I can finally throw away that huge, clunky flat LCD that's hogging up my desk.
Lately democracy seems to be based on the skybox, the Happy Meal box, the X-box, and the idiot box.
Now we'll not only hear about cell phones causing brain cancer, now the press will be warning us that we could put our eyes out.
Is there any research on the long term effects of using these devices on they eyes and eye muscles?
e4 e5
Major usability issue here, if you have to hold the thing right in front of your eye to view it. Cell phones are dangerous enough with people holding them to their ears, can you imagine the pileups if folks started holding them in front of one eye while driving.
Seems to me this would be more applicable to VR goggles, or head's up displays.
-me
Love many, trust a few, do harm to none.
Ummm... we're not talking about scanning the retina for identification. This is a new kind of display.
You are in a maze of twisty little passages, all alike.
I sacrifice my karma on the altar of gratitude.
~~~
Read the article. This has nothing to do with identification- it is about projecting an image onto the retina for viewing.
I've got a mind like a steel trap - it's got an animal's foot stuck in it.
Interesting information, to bad it has nothing to do with the article.
Next time try reading the article, mate.
This isn't talking about retinal scanning for secure identification purposes, it's talking about using a scanning laser to project images directly onto the retina.
The Humblest Mollusk on the Net
MVIS stock price drops on news that another infeasible and unwanted technology was developed by the company.
"Why would anyone want to look like a dork holding a cell phone in front of their face to read their computer screen?" asked one attendee of the press conference.
"We will be able to produce hundreds of thousands of units every year!" claimed Microvision's CEO.
Skeptics remain skeptical, though, with no evidence that wearable computing ever taking off. "This is just another gimmick technology," said another attendee, "if I was really interested in computing, I'd carry a laptop or palm-sized computer. I certainly wouldn't hold a cell phone in front of my face. How would I type?"
Microvision is the leader in cell phone-based retinal scanning screens.
Akk, wrong way round, this is not retinal scan this is retinal projection!
Looking for an Information Security student project suggestion?
Try http://dotcrimeManifesto.com/
Ummm, this isn't eye-scanning in the traditional sense (looking at your iris/retina for security/identification purposes), but as a display.
:-)
"Retinal scanning" is a confusing term for this article to use; they mean the transmitted image is scanned across your retina as the mirror moves, so you can see the image, not so it can see your eye.
Hmmmm. If they can project it on to your eye bright enough, I wonder if with a bit of modification they could project it onto the airplane seat in front of you. A tiny projector for travel would be very cool
-me
Love many, trust a few, do harm to none.
"Kirk, Admiral James T."
.
Nice for Cell phones, but it sure seems like this has some massive applications for any portable type of computer. With the size of laptops coming down each year, I would imagine being able to, in effect, get rid of the display could REALLY reduce them. Imagine having a 1 ghz machine, large about of storage (IBM micro-drives come to mind), and a tiny display you can "peek" into, that would fit in your pocket. Or having a notebook size display on a Pilot. Very cool...
You may want to take a closer look at the article. It's about retinal scanning displays, not biometrics. The laser paints an image on your retina , creating an overlaid HUD.
Retinal scanning is when you read the retina, not when you present things for the retina to scan.
http://www.dictionary.com/search?q=scan
Okay, I can see this as a new type of Glasstron like system for portable DVD players (has to be cheaper than the 8" LCD on current ones). But in no way should this be in a cell phone. I can barely walk and talk on one of those, but walk, talk, and view a movie, I'd hurt people. In a car, I'd be a moving traffic violation.
One other question, what about those of us with glasses, can the system work around that, or will I have to start wearing a monocle like Mr. Peanut?
Fortran programmer...oh yeah. Array math for life!
Anyone remember the advertising in Diamond Age where images were broadcast directly into the eyes of passersby on the street? I can imagine this on a scale where these are placed in strategic locations in supermarkets, on the street, heck even the freeway. Scary, that you could have images directly placed onto your retina that are beyond your control (other then closing your eyes) Talk about mucking with reality, but then there's a whole new market for special sun glasses that reflect this kind of bombardment... Oakley Ad Blockers!
well...then it's a good thing the title is Retinal-Scanning Screen Prototypes innit?
Is super VGA not 1024x768, this was my understanding, however the artical cites SVGA as being 800x600
Now you can just superimpose a cute face and slender figure instead of having to drink one into place! Think of the cost savings!
- Freed
"Coffee should be black as hell, strong as death, and sweet as love." -Turkish Proverb
and I'm not quite sure I want to beta test this one,
That's like saying you don't want to test a View Master 3D toy because you're afraid they might have put a search-light-power light bulb inside.
Do you really think they're putting a 1 watt laser in this thing?
Sometimes it's best to just let stupid people be stupid.
Any kind of light ultimately damages the eye. Some types do more damage than others. Lasers, notorious for being high power and having the ability to easily blind people have gotten a bad rep. Low-power lasers do very little harm, probably less harm than a few minutes outdoors on a bright Winter day. I believe they are doing this now, or will be starting to, paint images on the retina directly using a laser for flight and other types of training.
Job? I don't have time to get a job! Who will sit around and bitch about being broke and unemployed then?
If I could just get this sewn in my eyeball, along with the IBM Microdrive inside my armpit, and the firewire port on my ass,...
I guess I'd need a driver.
I remember reading about a system virtually identical to this several years ago(maybe the same company, even). I was big into VR then, and I thought that this would be a hell of a way to create an immersive system.
Creedo
All that is necessary for the triumph of good is that evil men do nothing.
I thought it said three LEADS and a mirror. That would have been impressive.
Now what i'd like to see is this technology applied to creating a cheap display for consumer devices. I used to design consumer products (cordless, not cell, phones) and we were very interested in adding advanced features, but the cost of the LCD was always prohibitive.
What about increasing the intensity of the LEDs (Laser diodes perhaps?) and scanning a small portion of the wall adjacent to the device. Most people (the the US anyway) have fairly smooth, white walls. The only drawback would be getting it bright enough to be seen in a light room.
http://www.masturbateforpeace.com/
Just walk around blindfolded.
.technomancer
Reminds me of the "Jeffrey's" Sketch with P. Brosnan - Will Farrel whips out his email pager -
He wears it on his finger, and it is the size of a matchbox. To read it he needs to put on magnifiying glasses and move the screen from side to side.
Really the only funny part of the sketch.
Scanning, in the sense that the gun in your television scans as it draws the picture. As in "scanlines".
I sure want to be seen wearing one of these around campus. I'll be the coolest guy around.
Women will flock to me and people will pay me thousands of dollars to wire their networks for them. I just feel so bad for the jocks who can't use technology as advanced as a pencil, when the geeks take over the world it will be they who will be scrounging for women.
The geek shall inherit the earth!
Snowcrash!
This sounds cool, and Im glad someone is on this track, in 20 years people will be sayign (as they do with TV) , 'People used to think this would hurt their eyes' , like my mom used to say about the TV.
I always love the sci-fi flicks where they have something like this on a thin stick near their eye, walking around in a dark smokey ship hold. a good slap upside the head and , ouch. no more eye.
Or the IBM commercial....same thing.
Im not so worried about the reitanl scanning effects, lasers(no not the little led jobbers), arcs, you name it and Ive looked at it. I can still see, I may have had vison problems for a day or so after some of the incidents but it healed(I know I understand some dont).
What Im WORRIED about is having something the size of a frigging pencil 1 inch from my eye, that sounds scarrier than potential retinal damage.
Sig went tro...aahemmm.....fishing........
when can i log into the Metaverse?
(from Snowcrash for those who do not know the reference)
Just dont forget to turn on the screen saver, I would hate to have to look at a negitave of the same web page for the rest of my life.
One other question, what about those of us with glasses, can the system work around that, or will I have to start wearing a monocle like Mr. Peanut?
If the marketing sketches of the optic path accurately show the geometry of the system, you'd be able to see in focus without your glasses. (But your iris would have to be in the correct spot, i.e. you're looking in the right direction, or the image will disappear.)
The focus issue occurs because the light from a given real-world "pixel" arrives as a wide, essentially colimated (rays essentially parallel) beam, and your lens has to focus the light hitting it all over its surface down to a point, or a very small patch, on the retina. If your lens is less than perfect or not currently adjusted correctly, light from one real-world pixel striking different parts of it arrive at different spots on the retina, rather than all at one spot, defocusing the image.
Most displays illuminate the whole retina with a broad beam, allowing you to move your eye or head about and still see the image, but requiring your lens or lens-plus-glasses system to focus properly. This system MAY hit your eye with a narrow beam, which would reduce or eliminate the need for the lens to focus accurately.
But it would also require your eye to be in exactly the right spot, within the size of your pupil as viewed through your eye's lens. Eye motion would make you lose the image. So I suspect the display actually spreads out the light on its way to your eye, and you'd still need the glasses.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
The real gem of this technology is that it will eventually lead to full heads-up augmented reality computing.
Imagine walking down a street or park, and projected out in front of you is all types of interactive data about whats going on. You could be hiking, and with the assistance of GPS and this retinal display, a live top map could be projected over your field of vision, giving you great insight and clues as to where you are going. Better still, such GIS information such as water, underground pipes, etc would be available for full viewing just as if you had x-ray vision.
For doctors, full 3D PET/CAT scan data could be overlayed in vivid detail right on top of the patient as the doctor operates. The doctor could see in complete detail exactly what she was doing as she made the incision.
I don't know about you but MicroVision Technologies is a stock I'm going to buy, they are going to be huge.
Microvision was the first hand held video game system with cartridges.
:-)
Oh, wait - that's a different Microvision
While this may be a killer app, it certainly won't be for cell phones. I see the main market for this to be the replacement of active matrix notebook displays. If they can get the resolution to 1024x768, you can take that fold-up keyboard for palms and mix them with a small computer brick. The brick stays inside the bag and uses a possible wireless connection to the headset and keyboard. You could also replace desktop displays with this thing. Use some kind of shield to black out room light and you'll have a very emmersive heads up display. Wearable computers as well, maybe that's the cell phone angle. This reminds me of that ST:TNG episode where everyone was getting high on that head-moutned video game. Cool stuff.
Disconnect your television. Do your own research. Draw your own conclusions. They're probably lying. Don't be a sheep.
Here in DC we just had several highway fatalities because someone was talking on her cell phone and crossed the median into the path of a minivan.
Obviously the answer is to use a phone that urges you to hold it in front of your face for even greater distraction.
Very bad idea.
Do you really think they're putting a 1 watt laser in this thing?
Doesn't matter if it's a laser or a diode, one watt or one milliwatt. If it's bright enough to paint a visible picture it's bright enough to fry the spot that's illuminated if the scanning stops with the beam on.
So they'll need a safety interlock of some sort to cut off or dim the light source if the scanning stops, or make the amount of light emitted dependent on the actual motion of the mirror, unless they can guarantee that the scanning failure modes all deflect the light away from the eye.
Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
Hackers will now be able to write malicious code to flash bright white light into the users eyes and blind them.
At last! Pr0n on the morning train commute and no one will know... well, as long as I keep my coat on my lap anyway.
Disconnect your television. Do your own research. Draw your own conclusions. They're probably lying. Don't be a sheep.
didnt you post this same reponse earlier?
Skip sewing it to your ey and plug right into the old nerve endings if you go that far.
And watch out for which port you plug that new digital camera into...
Most nearsightedness and farsightedness is caused by the eye, and consequently the retina, not being in the correct shape.The image is formed either too far ahead or behind the retina.
I read the article but I didn't see any mention of how the beam would project on malformed retinas. If you are farsighted and you use this Microvision system, will the image appear to be deformed as well? Will it look like you are sitting too close to the movie theater screen?
"For a successful technology, honesty must take precedence over public relations for nature cannot be fooled." -Feynman
Read the subject. This is not a post at 2 comment. Karma whoring.
...well, when it comes to this arena anyway.
MIT's 'borgs have been using prototype retinal scanning displays from various companies that have offered them for at least half a decade.
Back around '97 I was really interested in wearables, but the availability of this type of display was always a problem, and all the suppliers that the MIT crew had listed no longer sold the devices (and they were only selling them as dev-kits anyway)
Read up on MIT's "Lizzy." The most popular display back then was a single LED (red) scanning display, with 320x240 resolution, but it was the same exact technology.
It's one thing to put an image up onto a screen which the eye can scan while the brain quietly does its own meatware version of Sony Steadyshot. But wouldn't countering small projector vibrations and eye movements be darned tricky? Does this require the projection unit to be clamped to the skull while the eyes are immobilzed with a Clockwork Orangesque device? Or is the thing smart enough to continuously vary where it projects each frame? Naturally, I'm skeptical...
3000+ comments meta-modded. 0 mod points awarded.
Lesson for other meta-suckers: Don't believe the hype!
What happens if I sneeze? What if I develop pick-eye? What if my contact pops out since I didn't blink?
"If you are on fire you can just stop, drop, and roll. If you fall into Lava you are just dead." - my 5yr old daughter
Can anyone point me to where you can actually find some of their technology in use? From their press release page press release page all I see are things like:
Microvision demonstrates prototype X at unheard of conference.
Microvision scores $10B contract to develop M for the army.
Microvision reports N Quarter results.
Microvision ships (ok so they actually built something) prototype Z. (but does it work).
Just curious if they've actually built anything other than a prototype in the last 12 years.....
One of the first "TV's" was a device called a Televisor. The technology to present a visual matrix (CRT or LCD or whatever) was not there yet, so the Baird Televisor used a single light and a spinning disk with holes cut in it in a spiral pattern. This made the effect of a dot which moved down vertically to form a line, and those lines moved from left to right to form an image. It took advantage of the human eye's "persistance of vision" to trick the viewer into believing that he/she is viewing a moving image, instead of a dot running fast vertically and horizontally.
Well, the technology seems basically identical to Nintendo's virtual boy, but with three leds (red, green, & blue) instead of virtual boy's one (red).
Same concept: a flashing LED is scanned by an oscillating mirror, and you hold the whole thing up close to your eyes.
The Virtual Boy came with an automatic-pause feature, wherein it FORCED you to take a break every 15 minutes. Additionally, a strong warning was stuck right on the machine... it was NOT to be used by young children, because PERMANENT EYE DAMAGE could occur.
Yikes.
Everyone seems to be missing the point (including the original company) of a technology like this that's capable of delivering high resolution.
It seems to me that you could EASILY increase the brightness of this system by using more powerful LEDs/Lasers, and have the whole contraption project a wall-sized image at high res.
This has the potential to be a heckuva lot cheaper than current bigscreen and even projection TVs, plus it could be made so light that you could hang it on the wall without ripping out the plasterboard!
You get the idea...
One of my optic nerves never fully developed (the other one mostly developed, close enough. :) ).
/. discussions as to how this can find some cool uses (blink your eyes, have a map of the area around you appear, great for those long road trips and such. :) Catch your bearings while stopping at a restroom. ), but all in all
:)
I have already stated else where in other
I WANT SOME NEW OPTIC NERVES DAMNIT.
Or optic nerve regrowth. Or what ever works. Seriously, I just want some damn depth perception!
Need help treating your acne? Come here!
is it just me or does this sound like a super-scaled down projection TV with a higher resolution?
p r m t h s
...for my bedroom, so I can identify the girl when I wake up in the morning.
Jake
Dating: while( 1 ){ call_girl(); get_rejected(); drink_40(); } return 0;
This system sounds an awful lot like the DLP (digital light processing) stuff that TI has been messing with for years. Uses micromechanical mirrors to put the image on screen. You can find DLP projectors and rear-projection TVs in most consumer electronics stores.
Yipes indeed. I wonder if we'll see law suits about any gaming tech, particularly vibrating handsets etc.. I don't think we had the virtual boy in the UK.
e4 e5
Their little scanning laser thingie can scan a beam across your eye, sure, but if your eye is focused properly the position of the final spot on your retina is independent of where the beam comes into your eye. If the spot position depended on which part of your pupil the beam passed through, then your eye wouldn't be in focus -- normally light from a given object (like the screen you're staring at now) comes through all parts of your pupil simultaneously, so the sharpness of what you see depends critically on your lens getting the job done right. So it doesn't matter how they scan their little mirror-and-laser gismo, they aren't scanning the bright spot on your retina -- they're just shining a blinkenlight at your eye.
And, yes, this argument applies to the cool gizmos in Diamond Age, too. They just don't work.
Now, if you defocus your eye, deliberately NOT looking at the projector gizmo, the system might be able to work. Try it now: hold your thumb right in front of your eye. (Take off your glasses if you have to.) The edge of your thumb looks fuzzy, right? That's because light from the edge of your thumb is passing through several parts of your pupil, and your lens is NOT set correctly to focus that light onto your retina: light from different parts of the pupil hits the retina in different places.
That opens up a nice little loophole: if you deliberately defocus your eye, then the Microvision gizmo could conceivably use that defocus to map position on your pupil to position on the image, and project a nice image on your retina directly. That works in principle, but in practice is neither small nor cheap: they'd have to have some kind of machine vision to track your pupil, at the very least, and that kind of stuff is still expensive.
I wonder if that site is one of those FTC trolls?
"Sure its great for 10 years but then your eyes fall out"
-Future ned flanders
-THIS SPACE FOR RENT!
i hope the also developed some screensavers for this technology. don't want to have my desktop permanently burned onto my eye... :)
You don't know true video game joy until you stand up for the first time after an hour or two (only pansies leave the automatic pause on!) of Red Alarm on a Virtual Boy and stumble your way around the house.
Damn, I wish that system would have taken off...I could use more games for it.
"That's Tron. He fights for the Users."
While working for them briefly in 1998 I had the opportunity to test the 800 x 600 VGA retinal display and it was impressive.
They don't over hype their technology as much as they should and most of their efforts are in military contracts Vs consumer electronics.
In 1998 Microvision's business plan listed the consumer electronics market as 10 to 15 years away from using their technology in any form.
They focus on military, aviation and medical applications. The coolest thing about retinal displays is that you can paint images on the retina without disrupting your normal field of vision. This, for example, would allow a doctor to have all your vital signs imaged on the retina while they performed an operation, or a pilot to view flight and/or weapons data without taking their eyes off the sky.
Microvision bought the technology/patents from the University of Washington. The majority of employees that work there spent many years in academics (Optical-Physics PhDs). As a result the company culture is very unique and unfortunately slow paced.
They focus on improving the resolution, testing the ergonomics, and in addition, MEMS (Microelectromechanical Systems) work. The military research contracts pay their bills but don't necessarily make them rich. They know their technology will rule them all...just not for another decade. For now it is all about research and patents.
Microvision will never manufacture any form of their product in mass quantities regardless of what their press releases may say. If wearable computer and smart-phone manufacturers think they know how to implement Microvision's technology for the NBT then by all means they'll help make a prototype and sell them a license to build millions of gadgets.
That was "my" first on that...
I smell a good poll here.
So, apart from pairing the retinal scan with some kind of changable secret (say a password, etc), what happens when someone compromises the 'electronic version' of your retina? You can't really change your retina. Same goes for other biometrics.
... is for the 'phone to look deep into the owner's eyes to scan the retina, verify the user and enable the 'phone. This would fix the plague of cell-phone muggings. TV adverts via cell-phone - purgatory. Not for me thanks ever so!
crap, that should have read:
people who can't see near things WOULD be affected.
Once they get this tech small enough, it sounds perfect for creating head mounted displays approaching an ordinary pair of sunglasses.
This could be an important step towards wearable computing!
-
- - You can't take something off the Internet! That's like trying to take pee out of a swimming pool.
...yeah, my employer installed rectal scanners a while back. They seem to work fine, but there's always one or two real assholes who spend a lot of time using them.
Any connection between your reality and mine is purely coincidental.
I couldn't stay out of this one. This particular prototype was a full color cell phone demonstrator. It may be somewhat inconvienent to hold a phone up to your face, but you have to admit that a 21" virtual display might be nice... Of course resolution needs to be increased, of course it will be a year or two before you see the cell phone product. However, we do have a SVGA heads up product that began shipping this year. It is a monocrome red see through display that is bright enough to use in full sunlight. It's basically the same thing that the main chick was wearing in the begining of Final Fantasy (sprits within). It is being targeted for things like medical (surgury) and aircraft repair where you want to be looking at what you're working on while also having some data in your field of view (heart rate, schematics, whatever). It's a little spendy at the momment, so we aren't going for the general market, but you could do it in a binoccular setup to get 3D rendering or whatever. And I know you all probably will dissagree, but for an augmented reality display, you really only want monochrome anyhow. Full color images would block your view of the world and reduce functionality. Of course, we have a variety of full color prototypes. The goal is mobile computing, and anything else you can think of where you want a big bright display that doesn't take up any space. Ford, among others, is looking at using the technology in cars for in dash displays etc. Some of it is described at our web site, www.mvis.com. It works. It's cool. Don't knock it...
Sorry, but ... what the hell are you talking about?
Viewmasters, camera viewfinders, LCD goggles, and dozens of other devices project an image onto your eye from a small distance in front of it. The image is sharp and in focus, and in fact your eye focuses on it as if it were actually a certain distance away from your face.
If your objects held any water at all, *none* of these devices would be possible. Are you suggesting that 21st century optics technology is incapable of making light enter your eyeball at the right angle?
ZFS: because love is never having to say fsck
Since there seem to be a ton of unthought-out posts on this I thought I'd lend some words. Although it's at the risk of only skimming most of the posts as I don't have the time.
The research for this, or at least the bulk of it, is being done at the University of Washington in the Human Interface Technology Lab (HITL). I've been to a presentation by the guy who heads the project and it actually is pretty cool. I first heard about it long ago. Another post said Microvision started talking about it in 1993 and I think that's about when I first heard about it. There's a large chunk of funding coming from the military, of course, and they'll have the first crack at it if not already. Also, Microvision had either a small prototype or a simulation of one at a job fair that I attend in the last year and it was pretty dang sweet I have to say. The prototypes that are at the UW (yes, they have in fact built them) use diode lasers in stead of LEDs. Truly, the diode lasers are fine as they put far less light in your eye than ambient light does but LEDs are more public-masses friendly. Anyway, the UW page for this is hitl.washington.edu/research/vrd/. They've probably got more technical details than Microvision does.
"They're either a benefit or a hazard. If they're a benefit, they're not my problem." --Deckard
That is how the expensive models of projector already work, kinda. You know, the ones with three lenses...only they have a red green and cyan lightsource converging on the projection area, instead of having a little mirror do it for them.
I'll repost this, since the "anonymous coward" stuff tends to get ignored. This particular prototype was a full color cell phone demonstrator. It may be somewhat inconvienent to hold a phone up to your face, but you have to admit that a 21" virtual display might be nice... Of course resolution needs to be increased, of course it will be a year or two before you see the cell phone product. However, we do have a SVGA heads up product that began shipping this year. It is a monocrome red see through display that is bright enough to use in full sunlight. It's basically the same thing that the main chick was wearing in the begining of Final Fantasy (sprits within). It is being targeted for things like medical (surgury) and aircraft repair where you want to be looking at what you're working on while also having some data in your field of view (heart rate, schematics, whatever). It's a little spendy at the momment, so we aren't going for the general market, but you could do it in a binoccular setup to get 3D rendering or whatever. And I know you all probably will dissagree, but for an augmented reality display, you really only want monochrome anyhow. Full color images would block your view of the world and reduce functionality. Of course, we have a variety of full color prototypes. The goal is mobile computing, and anything else you can think of where you want a big bright display that doesn't take up any space. Ford, among others, is looking at using the technology in cars for in dash displays etc. Some of it is described at our web site, www.mvis.com. It works. It's cool. Don't knock it...
Take your simple Viewmaster. Holding a viewmaster slide right up against your eye illuminates different parts of your pupil with different bits of image -- light passes from the sun or the room lights or whatever through the slide and onto your eye, so there's a little image of the slide projected onto your pupil. What do you see? A blurry mess.
Now stick the Viewmaster slide into the viewer. Lenses in the viewer convert the positional information on the slide into angular information that your eye can process. What do you see? A nice picture of a dinosaur, or whatever.
The point is that the image can only be as big as the apparent size of the lens in the viewmaster. These guys have lots of graphics showing tiny lenses projecting into your eye from far away. That can't work the way that they say. The lens has to be able to get "at" all the different angles coming out of your eye.
It seems to me that they have a sort of (but not very) interesting technology and they're hyping it as the Next Big Thing. But the Big Thinginess comes from applications that are physically impossible. You don't need a laser diode and a scanning mirror to make a ViewMaster work, and there are very nice VR goggles and such that use conventional (if small) LCD displays.
You have no clue as to how the targeting systems in an Apache helicopter work, do you?
The point is that the image can only be as big as the apparent size of the lens in the viewmaster.
You don't have a clue about you're talking about. This technology has been around for a couple of years, both at Microvision and before that in research labs at the University of Washington. It's not a scam.
I suppose it's "physically impossible" for my LCD projector to produce a 10 foot image, considering that the lens is only about 3" across?
But the screen is a crucial part of the LCD projector system. If you try to beam images straight into your eye with the projector, what do you see? Try it sometime -- stand in front of the screen. You see a bright lens that looks really tiny, because it's only 3" across and halfway across the room.
The only way to project images directly into your eye is with a lens whose apparent size is larger than the image you want to project (``apparent'' because you can use a close, small lens like a camera viewfinder, or a large, distant lens like those old Fresnel-lens projection televisions...)
If these guys are relying on you to hold their tiny 3" screen up to your head, they've just reinvented viewfinders, which is no big deal. If they want you to project images on the wall, they've just reinvented projectors, also no big deal. They seem to be claiming that they've invented something else entirely -- a screenless projector, if you will, like the interface that Hiro uses in The Diamond Age, but without the cool shades to scatter the light into his eyes. That's not possible, for the reasons I described (apparently not too clearly) above.
The important point is that different pixels have to come from different places, so that they could get into the pilot's eye at different angles (so that they'd hit different parts of the pilot's retina). You still can't beat the apparent-size-of-the-last-optic problem, because light travels in straight lines when it's not interacting with optics.
You've got it exactly. It's a screenless projector (or your retina is the screen), though it does have a lense to bounce it into your eye (or at least the head mounted ones do). The cell phone prototype sets the focus depth with a physical stop that you set against your head. The head mounted product, has a depth of field adjustment (as you mentioned) so you can set the image focus to match your preffered field of view. I believe (though I'm not sure) that the focus plane can be from about 2 feet and out. The NOMAD product is designed to be used while working on something, so the focus is usually very close. It really works quite well, and I haven't used the newest models.
But the "concepts" PDF on the site shows lots of applications where the graphics just hang in space, near a small-looking projector. (Check out the one with the Cessna dashboard, or the sports-car ``concept'' image). That's misleading and physically impossible, and that's what I'm complaining about.
The concept is not that an image will hang in the air (like you said, impossible). However, if there is an exit pupil in the dash and you look at it, you will see what appears to be a large screen superimposed onto you view of the dashboard. If you make the focus of the image significantly different than the where the dash is, you will only see the image (think looking through a screen door, you only see the screen if you focus on it.).
I think the real probem with this thread is that it started on the cell phone prototype, which has some flaws (being a first gen prototype and all).
The real products that we make are all head mounted displays.
where Riker brings back a head mounted thing from Risa (sp?) that projects an image right into your eyes. They called it "just a game", but it wound up enslaving the entire ship.
;-)
One of the few (if not the only) Wesley episodes I thought was good, and he got a hot girl to boot.
http://kered.org
Cool. Thanks for the info.
Cheers,
Craig
This is exactly how they work. Digital mirror though only 2 positions. Funny thing is that the reason the technology has not been adopted is that its to expensive.
Strange - I remember Zeinfeld (is that how it's spelled) as being funny, pleasant, and always with a new angle!
>>Or optic nerve regrowth. Or what ever works. Seriously, I just want some damn depth perception! :)
I think you really need to look elsewhere to perceive either real or imagined depth.
--- I wish I could hear the soundtrack to my life. That way I'd know when to duck.
Microvision ships first Nomad Personal Display Systems
"The company is targeting applications for workers in four vertical markets -- industrial, aerospace, medical, and military -- that enable customers to keep information in front of people engaged in manual tasks or on the move, noted Rick Rutkowski, Microvision CEO. The first shipments reflect the diverse applications for the Nomad system that Microvision is developing with customers and partners:
Stryker Leibinger (a division of Stryker Corporation) will couple the Nomad system with a surgical workstation. The display will provide surgeons with a see-through display so they can visualize the surgical field while viewing targeting and guidance information provided by the workstation. The system has the potential to improve accuracy and decrease operative time."
Operator, give me the number for 911!
Take a look at the market (ticker MVIS). When the news was announced the stock gained about $1. Then in the next day it lost it all. The market thinks it's all BS.
Here is the page where they describe the would be product http://www.mvis.com/prod_microdisplay.htm
It has nothing but marketing talk and a dated "Concept" document.
The page for investors has some info on future products. The microdisplay is not listed there. Obviously, it's not going to be released in foreseable future.