The Raspberry Eye Sees All

rasp pi eyes

[Roman Rolinsky] wanted to try to do something interesting with his Raspberry Pi and a 2.4″ LCD he had laying about… So he made a rather bulky version of Google Glass.

We’ve seen a few examples of home brew Google Glass before, or even real-life subtitle glasses used for translation on the fly, but what we really like about [Roman's] project (besides the fact he hosted it on our very own awesome project hosting site) is that he’s put together the projection system himself out of basic components.

To create the HUD, he’s using a semi-transparent mirror which he took out of a game of Khet 2.0 called the Eye of Horus Beamsplitter — which is a really cool real-life puzzle board game like those games where you have to reflect the laser to solve a puzzle. He’s then using a 3x Fresnel magnification lens which is placed over top of his 2.4″ LCD in a 3D printed enclosure. This magnifies and reflects the image onto the mirror which is placed directly over his eye, allowing for a see through display.

Stick around after the break to see a video of the Raspberry Eye in action!


  1. kendall15 says:

    I am of borg of Radioshack…..Cool never the less.

  2. vonskippy says:

    Resistance is futile

    //needs a laser pointed pasted on the side of it.//

  3. Maave says:

    I don’t think we need to call every HMD a “DIY Google Glass”. This kind of tilted combiner is old. It’s not seem much commercially because it’s bulky as hell at larger sizes. Just call it a head-mounted display because that’s what it is.

  4. electricprism says:

    Why are you running #alsamixer on your visual display? I don’t Imagine your devide has a speaker heh.

  5. Zane says:

    Google glass has a boring design, makes you kinda creepy. This thing makes you Borg, and as noted above, Resistance is indeed futile.

  6. pcf11 says:

    This is the seriously ghetto version of Google Glass.

  7. Needs a Camera fed to an OCR data-logging the recognised text while a second camera monitors what you stare at and a Heart beat logger and blood pressure monitor EMF meter + a Gyro meter and a Infrafed spotlight.. and object recognition with a GPS receiver.

  8. rasz_pl says:

    I wonder about focusing problems, other than that it looks great.

    • exactly!! if that kind of “lens” or “mirror” or “combiner” or whatever it is capable of producing the image representation somehow “further” from our eyes, then it will be perfect! Does google glass have this focusing problem?

  9. StinkySteve says:

    Why mount everything on the head? Most of that could go in a container and clip onto your belt and then have the wires running up to the unit (perhaps inside a cable tidy so it acts like a single cable).

  10. Tom the Brat says:

    He’s been assimilated!

  11. D0xis says:

    Greeting, Locutus of borg!

  12. Rasekov says:

    I’m just wondering, would this be easier if he used a pico projector instead of an LCD?

    Seems like a way to reduce the bulk of the project considerably but I’m not 100% sure if it would cause any additional complication.

  13. john ruby says:

    This has to be a joke right? Who the hell would wear that in public? Seriously…….

    • krudd says:

      I’d like to point out that he made it, you didn’t. He has the skills, and you don’t. You don’t have a whole lot of room to criticize. I don’t think his intention was to make a stylish piece of technology to market to the masses. He was doing what any hacker would – experimenting. I guarantee you Google Glass looked a whole lot like that at one point in its development cycle.

  14. kaye says:

    Is the eye of whatever part custom made for the game, as linked, out of a cd case, or is some other special material required? The fresnel is not a common item so I’d not be suprised if the lens was special too.

  15. enkiv2 says:

    This is awesome! It looks like it wouldn’t have any of the fogging problems that my HMD has, and the overlay looks good.

    How heavy / lopsided is it? It it comfortable to wear for long periods (>4 hours)? I may need to build one of these.

    • genericsoma says:

      It is 140g without the head strap. I did not try to wear for long periods yet, the wireless keyboard I have is not really good for normal use. If you need to see the screen only occasionally then some kind of flip-mount would be useful, but this would require using precision metal parts. Constant use for long periods may be unsafe for the vision.

      • enkiv2 says:

        I use a twiddler2 for mine — which I find more comfortable. It might be worthwhile, but it costs $200 and you have to learn a new key layout.

        I’m seeing some places suggesting substituting plain plexiglass for a half-silvered mirror, by the way — which is less than half as expensive as the Khet mirror.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Get every new post delivered to your Inbox.

Join 96,405 other followers