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György Szigeti (1905-1978),〔 "Fizikai Szemle 1999/5 - Zsolt Bor: Optics by Hungarians" (with Zoltan Bay), József Attila University, Szeged, Hungary, 1999, webpage: (KFKI-Hungary-Bor ). 〕 also known as Gyorgy Szigeti, was a Hungarian physicist and engineer who developed tungsten lamps. In 1923 at Tungsram Ltd., a research laboratory was established for improving light sources, mainly electric bulbs.〔 The head of that laboratory was Ignácz Pfeiffer (1867-1941), whose research staff included Szigeti, along with Zoltan Bay (1900-1992), Tivadar Millner, Imre Bródy (1891-1944), Ernő Winter (1897-1971), and others.〔 Szigeti worked together with Zoltan Bay on metal-vapor lamps and fluorescent light sources. They received a U.S. patent on "electroluminescent light sources" that were made of silicon carbide; these light sources were the ancestors of light-emitting diodes (LEDs).〔 == Notes == 〔 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「György Szigeti」の詳細全文を読む スポンサード リンク
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