Step 6: Construction 6

Here the prism unit has been grafted into the lens of the safety glasses.
The lenses of the safety glasses are polycarbonate which means you can cut a square hole out of one of them with a Dremel with a cutting disc in it and the lens will not shatter.

Measure twice, cut once. I marked up the square hole using black insulation tape strips and then moved them around over and over until exactly right before cutting anything.

I glued thin clear plastic to sides of prism and then cut them down little by little so that when they were stuck to lens of glasses the prism was held at exactly the right angle for you to see the screen properly while wearing the glasses. This stage needs to be done very slowly and carefully in small increments to get it right.

I used plastic glue very sparingly in places and a hot melt glue gun also (with care).

Once the prism unit was mounted I reassembled the display components back into the top of it. It all clips together although very delicate. Tiny blobs (and I mean really tiny) of hot melt glue stop it coming apart when assembled.
I noticed in your last hmd you said you had a camera hooked up to this I was wondering if this mod had a camera also and can would it be able to work with a smaller camera like the kind you find in those spy pen? I want to make one of these for soldering for some reason and I want to put a zooming camera on it..
John, I started out with a Microoptical CV3 that the cables failed after 3 years. I hacked a Vuzix 310 to monocular but the 1/8" round jack is bad on that after a year. What would you say to building me a more rugged unit for my IR camera? I alos like the idea of wireless if that's possible from my camera to my display.
where did you get the eye- trek glasses?
Hi, I bought them around 2008. They sold them in an attempt to get gamers interested. <br> <br>Currently working on a new version inspired by the eye-tap devices (google it) and of course the google-glass projects. Next one will not be mounted on a glasses frame and will be more borg-like just covering one eye (in miniature though). If it works will post an update instructable. <br>People say you look silly wearing these, well yes, you do. People say they have no real world practical application. I disagree, my application is very mundane. I have no intention of walking around the supermarket in them, nor do I want augmented reality necessarily. <br>I just want to watch downloaded TV on my attached iPod while simultaneously doing other things around the house, looking after children etc and this device will suit me just fine. <br> <br>John
How is it even possible to see anything from that close? <br> <br>I have glasses to help my vision, but if I try to see anything that close, it's just one big blur.
Try a pair of regular video glasses. The image appears to be 2m away on a 52 inch screen. <br>Therefore your eyes stay focused on long distnance whether you are looking through my glasses or at the screen, therefore it all works OK no blurring or eye strain. <br> <br>Would be great connected up to the forthcoming google augmented reality phone apps that are promised that will overlay information on the items of interest around you. <br> <br>John
I was thinking that too. I assume there is a lens in front of the screen.
Are u going to patent this.
If i remember correctly, the two screens on a the ipod thing is focused about 2 meters away, so that the image is &quot;46 inches from 5 feet&quot; or something, would using just one, sorta mess up the optics? make it a tad blurry or something like so?<br />
&nbsp;could you use a digital photoframe keychain? i have already hacked it to have calendar and to do lists
Problem is getting one to get video input.<br />
does it matter what kind of video glasses is used to make video display on one eye? thanks,
Intelligent Image Processing by Steve Mann is a pretty good (not too detailed though) guide to making eyetap (mediated reality) devices. It's got the trig formulae to calculate where the diverter should be and how large, ect. Anybody know a good place for cheap displays?
If you can manage with B&W display, the viewfinders of old video cameras is pretty good. I have one of these I've been dying to experiment with, maybe this instructable will kickstart my butt into doing it. This old camera was a Sony, but I'm sure they all have something like that. Also - these days you can get REALLY cheap small digital picture frames, may be worth investigating those? Since you're not after gaming frame rates, these may just be the ant's pants - and they're colour...
ants don't wear pants...
no, they do not
... you obviously don't socialise with the right kind of ants... %) See below for a better idea - I've now begun to look around 2nd hand shops for a suitable cellphone, may be much easier to interface.
unfortunately, a lot of the screens on those micro picture viewers are rather, rather terrible quality. I mean seriously terrible.
A cell phone could yield a cheap pinhole camera plus colour LCD screen (if you were careful about removing the connection ribbons from the PCB maybe you could even use the phone as an internet connection).
Wow awesome idea - and if you get a reasonable phone with an good OS and wifi then a lot of your work is already done! One application written in Java could snaffle camera output, send it to a base unit which would process it and add captions/markup, and send the augmented image to the display.
Here is a link to the textbook I mentioned that includes all kinds of great wearable computing/mediated reality stuff. <br/><br/><a rel="nofollow" href="http://www.cvc.uab.es/intra-web/Wiley%20-%20Intelligent%20Image%20Processing.pdf">http://www.cvc.uab.es/intra-web/Wiley%20-%20Intelligent%20Image%20Processing.pdf</a><br/>
is there any way to make it "slimmer"? what i mean bby that is less bulky because when you mount everything, its glasses with a hunk of plastic and stuff. any suggestions?
now you can be just like the batman! except maybe not as discreet.. great i'ble! :D
This seems really hard. I wanted to do this for an experiment I plan on doing--but this seems like it might be out of my league. And I'd like to do it in 3-D
I suppose the gadget can be modified to get a 3 D picture .Each human eye gives an image of an object individually to the brain. Because the each eye gets and gives the image at a slightly different angle , the images transmitted to the brain are slightly different. From these two images the brain constructs the 3D image. EVen a single eye transmits images at different angle by its rapid movement.The 3D image by two eyes is superior to 3D image of a single eye.<br/><br/>I copied following passage from the link <a rel="nofollow" href="http://encarta.msn.com/encyclopedia_761584746/three-dimensional_image.html">http://encarta.msn.com/encyclopedia_761584746/three-dimensional_image.html</a><br/><br/>Three-Dimensional Image, or 3-D image, flat image enhanced to impart the illusion of depth. Humans perceive the world and the objects in it in three dimensions&#8212;breadth, width, and depth. This seemingly simple phenomenon is the product of a complicated set of interactions between our eyes and our brains that is still not entirely understood. Our eyes are spaced about 6 cm (2.5 in) apart, which causes each eye to receive a slightly different image. The brain fuses these two images into a single 3-D image, enabling us to perceive depth. This way of seeing is called binocular vision, or stereoscopic vision<br/><br/>Go ahead and do it . This very useful in laporoscopic surgery. Already similar thing is developed it is very expensive.<br/>
Commercial 3D HMD's can be picked up starting about $300, new. The difficult part isn't viewing the 3D, or even necessarily convert his HMD to view 3D, it is finding or producing the source content.
you might neglect the prism, and use an opaque screen like a teleprompter. the colors would be a little washy, but you could see through the screen as well
Is there one input for the screen.
I bend looking for something for a long time YAAAAA!!!!!
Actually they have one of these in Japan, I think I saw it on Youtube not too long ago.
yo dawg, we heard you like cars and racing games so we installed a video screen in your glasses so you can drive while you drive! EPIC instructable!
parallax sells a OLED display that is 128x128 with 65K colors, and 1.5" diagonal for $90. It also has its own embedded graphics controller. Don't know if that will work for a similar use. You could also use a prism out of a pair of binoculars to project from the screen. Just an idea.
Holy crap!! I've been looking for this for months!!!
Sweet Device!
I have been trying to make a HUD for months. This will really help, I just don't want to deal out over $200 for the LCD glasses in the first place.
I've always wondered: how difficult is it to focus on the image shown by an HMD? Does it have lenses that make it "appear" far enough away that you don't get eyestrain?
i had the same problem when i attempted to build a nightvision scope. i never did find a way around it so i scraped the idea..

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