A Diffraction Grating Makes This Clock Readable
A new clock design utilizes a diffraction grating to enhance its readability. The clock features addressable multi-color LEDs that create a unique visual effect when viewed through the grating. This innovative approach allows for a display of floating LED figures, showcasing a blend of technology and creativity.
- ▪The clock uses a diffraction grating to make its display readable.
- ▪Each digit is generated in a different color using addressable multi-color LEDs.
- ▪The grating splits the colors, creating a floating effect for the LED figures.
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A Diffraction Grating Makes This Clock Readable No comments by: Jenny List June 3, 2026 Title: Copy Short Link: Copy We’ve seen just about every possible way to make a clock here at Hackaday over the years. So it’s rare to have a first, but here we are with [Twisted & Tinned], who’s made a novel clock with a diffraction grating. The display of the clock looks for all the world like a jumble of LEDs, that is, until you place the grating in front of it. Those LEDs are addressable multi-color parts, and each digit is generated at a different color all on top of each other. The grating splits out these colors, resulting in a magical set of floating LED figures. Behind those LEDs is a Pi Pico, but that’s just one of many microcontrollers that could have powered this project.
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