File:Osram Major Lighting and LED Patents Alternate.png

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Osram breakthrough inventions in lighting and light-emitting diode based sensing and transmission.

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Description
English: Osram breakthrough inventions in lighting and light-emitting diode based sensing and transmission. From left to right: Von Welsbach’s gas mantle and early incandescent light bulb with an osmium filament, first high-frequency electrical ballast for compact fluorescent lamps, high-efficient blue light-emitting diode with yellow phosphor for white light generation, heart-rate detection using efficient green light-emitting diodes in smart watches, quantum dots in light-emitting diodes. Wikimedia Commons, adapted from patents: US409530A, US976528A, US4415839A, EP0118100A1, US7078732B1, US20200046275A1 and US10763400B2
Date
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Author Michael Weinold

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current05:09, 13 June 2021Thumbnail for version as of 05:09, 13 June 20211,780 × 625 (391 KB)Michael Weinold (talk | contribs)Uploaded own work with UploadWizard

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