為防止病毒感染及散播，除了戴口罩及勤洗手等基础防护外，UVC LED主动杀菌消毒在市场关注度大幅跃升。依据紫外光波段划分UVC(200~280nm)為深紫外光，藉由波长短，能量高及发光波长连续可调等诸多方面的优点，可短时间内透过辐射破坏微生物机体(细菌、病毒及芽孢等病原体)细胞中分子结构和破坏核酸的功能，使微生物细胞致死无法再生，达到消毒杀菌目的。可广泛应用於空气／水／表面净化、医疗检测仪器、食物保鲜等市场:

In order to prevent virus infection and spread, in addition to basic protection such as wearing masks and washing hands frequently, UVC led active sterilization and disinfection has greatly increased market attention. UVC (200-280nm) is divided into deep ultraviolet according to the ultraviolet wave band. With the advantages of wave length, high energy and continuously adjustable luminous wavelength, it can destroy the molecular structure and function of nucleic acid in the cells of microbial organism (bacteria, virus, spore and other pathogens) in a short period of time through radiation, making the microbial cells lethal and unable to regenerate, achieving the goal of disinfection and sterilization. It can be widely used in air / water / surface purification, medical testing equipment, food preservation and other markets:

1.光触媒除菌除臭清净机

1. Photocatalyst deodorizer

2.光触媒美白模组

2. Photocatalyst whitening module

3.光触媒捕蚊灯

3. Photocatalyst mosquito lamp

4.光触媒空调除菌模组

4. Photocatalyst air conditioning sterilization module

5.光触媒保鲜电冰箱模组

5. Photocatalyst preservation refrigerator module

6.相关小型实验量產模组设计

6. Design of relevant small-scale experimental mass production module

消毒杀菌的重点有二，一是选择正确波长，需符合细菌与微生物的吸收波谱约 270 nm, 从273到281的波段，杀菌率逐渐下降；二是剂量（Dose）要够，才能有效发挥杀菌消毒的作用。「剂量（mJ/cm2）＝ UVC 辐射强度（mW/cm2）x 时间（Sec）」，UVC 辐射强度愈高，杀菌时间就会相对愈短，因此若要达到「秒杀」程度，UVC LED 光强度就必须提升。

There are two key points in disinfection and sterilization. One is to choose the right wavelength, which should be in line with the absorption spectrum of bacteria and microorganisms about 270 nm. From 273 to 281, the sterilization rate gradually decreases; the other is that the dose (dose) should be enough to effectively play the role of sterilization and sterilization. "Dose (MJ / cm2) = UVC radiation intensity (MW / cm2) x time (SEC)", the higher the UVC radiation intensity is, the shorter the sterilization time will be. Therefore, in order to achieve the "seckill" level, the UVC LED light intensity must be improved.

Harvatek开发搭载光学透镜封装型式，以散热為导向, 搭载1颗高功率272nm UVC LED，输入功率 1.4W 程度下, 照射能量达25mW/cm2 的UVC LED，具有环保、寿命长、节能、热损失较少等优点, 可达到99.99%杀菌效果，可应用于日常杀菌消毒使用。

Harvatek develops and carries an optical lens package type, which is heat dissipation oriented, and carries a high-power 272nm UVC led. Under the input power of 1.4W, the UVC led with the irradiation energy of 25MW / cm2 has the advantages of environmental protection, long life, energy saving, less heat loss, etc., and can achieve 99.99% sterilization effect, which can be used in daily sterilization and disinfection.