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早在20世纪60年代,LED的发光原理就已被人类掌握并开始大量用于各种仪器仪表的指示光源。随着20世纪90年代固体物理学的高速发展和新半导体材料的突破性发现,近10年来LED技术取得了突飞猛进的发展。在光效上,目前的LED已达到传统光源的100倍,比传统光源节能90％。在寿命上,LED可以连续发光超过10万小时,比传统光源寿命要长
As early as the 1960s, LED light-emitting principle has been mastered and began to use a large number of instrumentation for a variety of instrumentation light. With the rapid development of solid state physics in the 1990s and the breakthrough discovery of new semiconductor materials, LED technology has made rapid development in recent 10 years. In light efficiency, the current LED has reached 100 times the traditional light source, energy saving 90% than traditional light sources. In life, the LED can continuously glow more than 100,000 hours, longer life than traditional light sources