All Articles (1)NewsSep 20, 2022Nick Holonyak Jr. (1928–2022), LED inventorNick Holonyak Jr. was an inventor who created the first practical visible-spectrum LED, now used in applications from light bulbs to traffic signals to medical devices.Showing 1 - 1 of 1 ResultsBrowse articles by tagPlanning ResourcesSympathy AdviceHonoringGriefOffer Sympathy and SupportHelp with Grief and LossHonoring a Life