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I'm not sure this is right place for this question, but does anyone have any idea how a 7 segment display is projected or embedded in wood for products like this?

amazon wood clock

Full product info at http://www.amazon.com/Cube-Wood-LED-Alarm-Clock/dp/B00D6DI0LE

Another example:

enter image description here

From: http://www.selectism.com/2013/11/27/a-wooden-led-alarm-clock-and-wireless-bluetooth-speaker-from-gogroove/

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    Those examples are computer generated. In reality the contrast is a bit less, and the outlines aren't as sharp. But it's still a very cool effect. – Gerben Mar 3 '15 at 10:35
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This is done by carefully placing a layer of wood veneer over the 7-segment displays. The veneer is thin enough to let the light pass through. I wouldn't be surprised if some manufacturers use brighter than normal LEDs to make the display easier to see. Here is a video detailing an example.

It is also possible to simply drill out the wood to make it very thin where the 7-segment displays go. Here is an example of drilling the solid wood to be very thin.

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