led發光二極體的相關文章
Light-emitting diode - Wikipedia, the free encyclopedia

Light-emitting diode - Wikipedia, the free encyclopedia

瀏覽:341
日期:2026-04-22
A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for general lighting. Appearing as practical electronic components in 1962, early LEDs e......看更多