A new generation of cutting-edge technology, "Deep Ultraviolet LED (light emitting diode)" can release germicidal effect, and the naked eye can not see the light. This bactericidal light is called deep ultraviolet light. What is being developed in the field of LED is the release of "UV-C," the type of light that emits 100 to 280 nm (nanometer, nanometer, 1 parts per billion).

深紫外线的威力早就得到了证实。深紫外线能直接作用于生命的基础——DNA，从根本上掐断细菌繁殖。研究表明，波长为260nm的深紫外线特别容易被DNA吸收。具有消灭DNA遗传信息的效果。

The power of deep ultraviolet rays has been confirmed. Deep ultraviolet radiation can directly act on the basis of life, DNA, which basically cuts off the multiplication of bacteria. Research shows that the deep ultraviolet light at 260nm is particularly easy to absorb by DNA. It has the effect of eliminating the genetic information of DNA.

深紫外线的发展技术主要在美国、日本、韩国等国家。2014年，赤崎勇和天野浩因开发出蓝色LED而荣获诺贝尔物理学奖。凭借着诺贝尔技术源泉，日本目前站在了深紫外开发的最前沿。美国在深紫外的研究方面领先，具有代表性的企业是美国的SETI公司，但是近年有被日本超越的趋势，日本日机装(NIKKISO)从2015年春季开始量产发光波长为255～350nm的深紫外LED。

The development of deep ultraviolet technology is mainly in the United States, Japan, Korea and other countries. In 2014, Chi Chi Yong and Amano Hiroinno developed the blue LED and won the Nobel prize in physics. With the source of Nobel technology, Japan is now at the forefront of deep ultraviolet development. The United States is in the lead in deep ultraviolet research. The representative enterprise is the SETI company in the United States. But in recent years, it has been overtaken by Japan. Japanese Japanese aircraft (NIKKISO) began to produce a dark ultraviolet LED from 255 to 350nm in the spring of 2015.

韩国厂商首尔半导体与LG Innotek也在研发紫外LED。同时日本信息通信研究机构（NICT）宣布，新开发的波长265nm的深紫外LED，实现了输出功率高达90mW/cm2的连续发光，这一功率足以满足实用化需求。为夺取成长市场，以通过提高发光效率、建立量产技术，实现成本化为目标，全球掀起了白热化的技术开发竞争。一马当先的是3家日本企业：日机装、旭化成和德山。

South Korean manufacturers Seoul semiconductor and LG Innotek are also developing UV LED. At the same time, the Japanese information and Communication Research Institute (NICT) announced that the newly developed deep ultraviolet (UV) LED of the wavelength 265nm realized the continuous luminescence of the output power as high as 90mW/cm2, which was sufficient to meet the practical requirements. In order to seize the growing market, through improving luminous efficiency, establishing mass production technology, and realizing the goal of cost, the world has set off a fierce competition in technology development. The top 3 companies are Japanese machinery, Asahi Asahi and Tokyo.