An alternative to LED lamps

Print edition : August 02, 2019

Cathodoluminescent lamp: (1) cathode modulator unit, (2) cathode, (3) modulator, (4) emitted electrons, (5) phosphor, (6) aluminum mirror serving as anode, (7) anode output, (8) glass vacuum tube. Photo: Evgenii Sheshin et al/Journal of Vacuum Science and Technology

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