Kevin Kahn, Superman

By Dr. Kevin Kahn

Market Development Manager, EMEA

深紫外(UVC)发光二极管(LED)是辐照源,需要预防措施以确保安全使用。此页面包含旨在熟悉用户目前了解一些常规实践和预防措施的信息,通常建议在UV辐照资源文献中(此进一步的信息application note). It is not meant to be an exhaustive review on the topic.


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The UV range of the electromagnetic radiation spectrum goes from 10 nm to 400 nm. Depending on the wavelength and time of exposure, UV radiation may cause harm to the eyes and skin.


  • UVA(315nm至400 nm)
  • UVB(280nm至315 nm)
  • UVC(200 nm to 280 nm)
  • UV Vacuum (100 nm to 200 nm)

Decreasing wavelengths correspond with higher frequency radiation and a higher amount of energy per photon.

Biological Effect of UV Light


UVCradiation refers to wavelengths shorter than 280 nm. These wavelengths are entirely absorbed by our atmosphere and no natural UVC radiation reaches the earth's surface. These wavelengths are available through artificial sources, such as新万博客户端

Klaran WD 万博捕鱼手机游戏UVC LED

The intensity from point sources like UVC LEDs falls off as 1 over distance squared, and once it gets past the scattering length, it falls off exponentially. This means that 1) the further away the UVC source from a human, the lesser dose he is exposed to, and 2) the absorption length of UVC radiation in human skin is extremely short so that almost no UVC radiation can reach the living cells in the skin; all the absorption occurs in the dead cell layers.

Learn about how a UVC LED works

  • The penetration spectrum of light and UV radiation into human tissue.
    The scattering increases with decreased wavelength.

在罕见的延长直接暴露于UVC光的罕见情况下,临时眼睛和皮肤损伤已经表现出来,例如角膜损伤(有时被称为“焊接的眼睛”),尽管这通常在几天后愈合。因此,具有UVC LED的安全建议包括保护皮肤(特别是开放的伤口),最重要的是万博捕鱼手机游戏新万博客户端,来自UVC辐射的眼睛。

The EU health agency’s safety guidelines on the use of UVC sources can be found这里。特别是,研究得出结论:

“In any case, UVC is strongly attenuated by chromophores in the upper epidermis (Young, 1997) and UVC-induced DNA damage in the dividing basal layer of human epidermis is not readily detected (Campbell et al, 1993; Chadwick et al, 1995) which may explain why the dose response curve for UVC erythema in human skin is very much less steep than for UVB (Diffey and Farr, 1991). It is unlikely that UVC from artificial sources presents an acute or long-term hazard to human skin. However, UVC is likely to cause acute photokeratitis… UVC exposure is unlikely to cause acute or long-term damage to the skin but can cause severe acute damage to the eye and should not be permitted at all from any tanning device.”

同样的研究发现,有关人工光辐射产生的风险暴露的最低健康和安全要求(2006/25 / EC) - albeit for all UV bands combined: “Exposure limit value for UV (180-400nm) is 30 J/m2(= daily value of 8h)”





  • Use UV goggles and/or full-face shields
    • Prescription glasses and normal safety glasses do not protect eyes from UV exposure, so ANSI Z87 rated eyeglasses with wrap around lens to protect the side exposure is recommended. Consult with ANSI Z87 manufacturers for proper UV exposure protection equipment.
  • 使用实验室外套,丁腈手套或其他实验室服装覆盖任何暴露的皮肤

Safety Design/Control/Monitoring/Maintenance

短波紫外线照射可以降低through product safety design considerations and controls. For example, safety switches wired in series allow UVC sources to be turned off without exposing workers to UV light. Or placing ON/OFF switches for UVC light sources separate from general room lighting in locations only accessible by authorized persons. Switch locations should be locked or password protected to ensure that the UVC source is not accidentally turned on. Each UVC system should have the option of a viewport so workers can view the lamp assembly without the possibility of over-exposure to UVC.

Proper installation, monitoring, education of maintenance personnel, signage and use of safety switches can help to avoid overexposure. The operating instructions and recommendations for proper use of any UV system should be kept for reference to reduce hazardous exposure. These should be clearly visible for the operators or maintenance personnel and include the temperature and relative humidity ranges specified by the system design to ensure safe operation. Maintenance should be performed according to manufacturer’s instructions electric power should always be turned off to prevent accidental exposure. There are no standard guidelines for monitoring UV equipment, but there are commercial UV monitors that detect output or leakage.



  • See an ophthalmologist if eye damage is suspected
  • 立即治疗皮肤病变
  • Follow your organization’s EHS incident reporting procedure. These often require documentation of the date and time of the incident, persons involved, equipment involved and type of injury.


了解有关UVC LED和设计具有U万博捕鱼手机游戏新万博客户端VC消毒功能的产品的更多信息contacting Crystal IS today