Optical and electrical properties of a spiral LED filament
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DOI: 10.1088/1674-4926/39/2/024003
Abstract: This paper introduces a new type of spiral white light-emitting diodes (WLED) filament with high luminous efficiency and uniform optical performance. The optical and thermal properties of the flexible filament were investigated at different stretching… read more here.
Keywords: spiral led; optical electrical; filament; luminous flux ... See more keywords