Since the onset of the recent pandemic, there has been a rapid growth in the consumption of UV lights from every sector of industry. Every industry wants to make its premises safe and secure for visitors and customers to feel safe and enjoy their time. Places from offices to schools, warehouses to lab facilities, to all the entertainment zones, UV lights have set their feet. Significantly the markets have grown as far as UV Detection and Disinfection products are concerned.
The disinfection system by optical radiation is based on neutralizing bacteria by destroying their DNA chain. The effectiveness of the "lighting" devices is the process that depends on the dose of radiation in a specific wavelength range. Concerning disinfection purposes, UV lamps have become a significant part of disinfection solutions for several decades now. The primary sources of light in the current systems are low- and medium-pressure mercury lamps.
This technology requires composite power supply systems to enable the ignition and stabilization of the discharge. Currently, some companies are working on disseminating surface disinfection, air applications, and water using UVC radiation obtained from LEDs.
Effectiveness of UV LED Radiation
The effective UV LED radiation for air and water disinfection is the UV radiation in the range of UVC. When new projects are taken, emitting codes are diodes in the UV disinfection range, between 200 and 280nm; exceptional care should be taken to properly assess the emitted radiation's quality.
This applies to the LED radiation sources themselves and entire optical systems as the properties of the materials used in the conventional illuminators don't work necessarily in this unusual application. Therefore, the accuracy of measurements of both irradiance and dominant wavelength is paramount in these demanding applications.
It allows the apt verification of the optical power with the dominant wavelength. Moreover, it will determine the indispensable dose of UV radiation.
In the case of UV LEDs, the optical parameters depend on the power supply condition, and the temperature of operation significantly influences their effectiveness in specialized applications in disinfection or other medical lamps. Small wavelength shifts are decisive in the efficacy of specific impacts in the ultraviolet range. The stability of the system's work overtime is crucial for an effective fight against biological pollution.
Therefore, when it is decided to get equipment for temperature and optical measurements, attention is paid to the fact that their price reflects the quality of components and sub-assemblies used to manufacture these devices. Among other substantial issues, there are the adjustments and calibration of the measuring equipment. The radiating component's quality directly impacts our safety, mainly in the field of disinfection realized by UV LED solutions.