The technology behind the Chroniker relies on Vacuum Fluorescent Display tubes, which were made in the former Soviet Union and are considered to be the precursors of the LED display.
The tubes contain a thin layer of phosphor mixed with inert gases in a high pressure glass enclosure. Their amazingly cool blue glow is based on the principle of cathodoluminescence, whereby electrons produced by a filament hit the phosphor and cause the emission of photons visible to the human eye.
Now you can use cathodoluminescence to tell the time with Chroniker – The Electroluminescent Clock. This clock relies on salvaged Soviet Vacuum Fluorescent Display (VFD) tubes from the Cold War era for display. Let their bluish glow awaken you in the mornings with the Chroniker’s alarm function. In a teak and cedar case, this entirely handmade clock will look lovely on any bedside table and makes an indulgent gift.