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I think they used EL wire and not LEDs (if we're thinking about the same thing)

But I'm really glad you didn't know about it and made yours :) since you really put a lot of thought into the details about color reproduction, resolution and diffusion. It's a very fun thing to play with and anyone wanting to build something similar will now be able to find great resource of info and implementation details on your site.

Didn't really thought of that :). But this was in 2015 and basically just a very lo-fi weekend project without any care about resolution or color reproduction (I saw pixelstick project and just wanted to see if I can make something similar :)) after which I used the LED strip for something else.

Really great writeup and results! I did something similar but much simpler few years ago (https://hyperglitch.com/articles/lightstick) but instead of long exposure (as I didn't have the good camera) I recorded the video with webcam and reconstructed the final image from it so I didn't have to shoot in the dark. The octave script for image reconstruction is very basic (and the results are very lo-fi :)) but maybe you can use the same approach and with some more work make more usable results (or phone app :))

I see no one mentioned luakit (https://luakit.github.io/). From the site: "Luakit is a highly configurable browser framework based on the WebKit web content engine and the GTK+ toolkit. It is very fast, extensible with Lua, and licensed under the GNU GPLv3 license. It is primarily targeted at power users, developers and anyone who wants to have fine-grained control over their web browser’s behaviour and interface."

There is another similar concept od modular desk but based on bigger modules and without the steel frame (modules interlock together) https://www.facebook.com/modulosdesk/