Raspberry Pi Forums

Hey everyone I'm new here so go easy.

My current project is to create a pair of Augmented Reality glasses. But I don't know where to start. With displays I mean. The display will be reflected through the lens kind of like Google Glass, but with two displays and a single driver board.

I have no Idea where I'll find a non-bulky micro display that'll connect directly with a driver board to a Raspberry Pi or any other Raspberry Pi like board through Serial (SPI, I2C, UART). I've tried having a look at common video glasses like the MyVu crystal but there only accept NTSC/PAL input and have a bulky converter addon. The only ones I've found are the 4D-Systems uOLED-96-G2, but they are too big and have a lower pixel density.

So can anyone help me find what I am looking for?

Thanks!

This is probably a starting point: https://www.google.com/get/cardboard/

The first problem you have is that you need to focus the screen at infinity. If you just put a screen up to your eyes, you won't be able to focus your eyes on it. The above link should give you the basic components you need and a framework for getting the spacing right. In that version a mobile phone is used as a screen, but nothing is stopping you using a simple LCD screen. Maybe experiment with the phone first to build your understanding.

Finding a 4" screen that will take HDMI is another question. You may need to use one with a different interface.
This is a possibility: http://www.raspberrypi.org/forums/viewt ... 9&p=676311

http://www.lumus-optical.com/
http://www.gizmag.com/epson-moverio-hea ... lay/20452/

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rurwin wrote:This is probably a starting point: https://www.google.com/get/cardboard/

The first problem you have is that you need to focus the screen at infinity. If you just put a screen up to your eyes, you won't be able to focus your eyes on it. The above link should give you the basic components you need and a framework for getting the spacing right. In that version a mobile phone is used as a screen, but nothing is stopping you using a simple LCD screen. Maybe experiment with the phone first to build your understanding.

Finding a 4" screen that will take HDMI is another question. You may need to use one with a different interface.
This is a possibility: http://www.raspberrypi.org/forums/viewt ... 9&p=676311

Hmm, Thanks for the reply. I will definitely look into Cardboard and have a play with it for further development with focusing and such, but the answer I was looking for was to point me towards a pair of Video glasses/Micro displays that take serial input from the Pi and have a reasonably high pixel count, at least over 100x100 and still be under an inch. Though preferably two displays with one driver board.

The way I would do this is have the display in a housing at the top of the lens/side, then have a series of mirrors that reflect the display into the lenses, the lenses being at a certain angle, then feeding the lenses a display overlay.

Thanks for the reply though, I'll definitely have a play with cardboard and the lenses being used in them.

There are lots of AR glasses with resolution 320x240 and up. See my links. Composite or HDMI input are possible.

PiGraham wrote:There are lots of AR glasses with resolution 320x240 and up. See my links. Composite or HDMI input are possible.

Thanks for the links but I'm not looking for already built AR glasses, I'm looking for a High resolution MicroDisplay that accepts serial input.

Maybe you can use the displays found in pico projectors.

There are some very small OLED displays, but low res and monochrome. Very cheap.
Here's on on eBay

I doubt you will find a high res display that small which has serial (SPI?) input. What would it be used for? Where is the mass market for very slow tiny high res displays? Available AR glasses use a video interface.

I think the optics for these things can be quite tricky. You want to do this to learn about optics?

here is a link there are some acceptably required
https://www.alibaba.com/product-detail/ ... 224byKRJSM

also i am try to do the same thing that you are try to do what are you using?

For historical reference:

For high resolution you can use these, but you'll need to use the display adapter.

Or for low resolution, but can be driven from the Pi itself (RPi 4 -> 2 HDMI -> one of these displays per HDMI port and you have a stereo vision AR setup.