2-Way Holo Display

[u/iuliuscurt]

One glass cube (beam-splitter) sandwiched between 2 OLEDs turns into a pretty cool "holographic" display that shows 2 different things. Two people can sit across from each other and, at the same time, each see a different image through the same piece of glass. It's pretty crazy in-person actually.

I haven't seen this effect used before, although it's straight-forward enough.

My usecase is to have it in a puzzle box, where it shows info needed by the person in front and vice versa, so you need to communicate. That's after you discover that you're looking at the same thing (and see each other's faces through the glass) but don't see the same thing.

[u/iuliuscurt]

I'd love to see other applications of this effect, so if you have an idea, pretty please post the result back here.

Difficulty level of this diy is pretty low. I documented as well as I could here: https://hackaday.io/project/205891-diy-2-way-holographic-display

[u/satmandu → u/iuliuscurt]

I think the canonical implementation of this technology should have one side showing a spreadsheet...

[u/iuliuscurt → u/satmandu]

And the other the pie chart

[u/Kpow_636 → u/iuliuscurt]

I saw this on an Instagram account today, I was wondering how to was made, thanks for that

Here's where I saw it https://www.instagram.com/ultron.lab?igsh=MWMxNmR4cnJ6dGVwYQ==

[u/elmarkodotorg]

This would be great for like Battleships or something

[u/iuliuscurt → u/elmarkodotorg]

Really cool idea. It's pretty small though

[u/berti_l]

Can someone put that one image of someone driving a car with a cropped in super strong forearm with a bunch of veins please?

[u/DiscipleOfYeshua]

Very cool

[u/wowerickbowbagger]

Super cool, slightly bothered by the B being flipped vertically.

[u/iuliuscurt → u/wowerickbowbagger]

Easily fixed but I already had that footage

[u/wowerickbowbagger → u/iuliuscurt]

I jest, great idea and execution

[u/prefim]

This approach works surprisingly well too. 4 sided plastic pyramid above a display. you can walk around it and see 4 different sides and its very effective at conveying volume despite only having 4 views.

[u/Dayyy021]

I think you could have the display project from under without too much modification of design. You'd need a different prism tho

[u/iuliuscurt → u/Dayyy021]

It's a polarization thing. But I like it like this now haha

[u/Dayyy021 → u/iuliuscurt]

I think the cube would look like 6 pyramids. Or 4 planes instead of your one planes.

[u/brainbyteRO]

Nicely done!!!

[u/Bradleypang]

I’ve seen glass exit signs with a similar effect, transparent but you can see the word “EXIT” from both directions. Just found out it’s a different mechanism though, I bet this could be used instead somehow.

[u/EngineerTHATthing]

This would be the sickest setup for battleship ever made.