Hi everyone,

IEC 62471 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies the safety requirements for photobiological hazards associated with exposure to optical radiation emitted by lamps and lamp systems, including LEDs. The standard covers a broad range of optical radiation, including ultraviolet (UV), visible, and infrared (IR) light, and it is intended to protect people from potential risks such as eye and skin injuries.

The standard categorizes light sources into four risk groups based on their potential to cause harm:

    Exempt Group (RG0): These sources pose no photobiological hazard or the risk is negligible.
    Low-Risk Group (RG1): These sources are not hazardous for momentary or brief exposure, but may pose a risk for long-term exposure.
    Moderate Risk Group (RG2): These sources can be hazardous even for momentary or brief exposure, and caution is required.
    High-Risk Group (RG3): These sources are dangerous and can cause immediate harm even during short exposures.

The standard provides guidelines for evaluating the photobiological safety of various light sources, including measurement techniques, exposure limits, and labeling requirements. Manufacturers of lighting products are required to assess the potential risks associated with their products and provide appropriate warnings and instructions to ensure safe use.

IEC 62471 is widely used in the design, manufacturing, and testing of lighting products to ensure they meet safety standards for human exposure to optical radiation. It is particularly relevant for industries involved in the production of LEDs, laser products, and other lighting technologies that emit intense light.