Recent photobiological research indicates that light radiation is closely related to human health. Improper exposure to ultraviolet light, visible light, and infrared light can pose direct or potential physiological hazards to the human body.
- Ultraviolet Hazards:
- Eyes: Photokeratitis, photoconjunctivitis, cataracts.
- Skin: Erythema (short-term), skin cancer (long-term).
- Blue Light Hazards: Retinitis.
- Visible and Infrared Light Hazards: Burns, erythema effects, cataracts.
This standard provides guidance on the photobiological safety of lamps and lamp systems, including various lighting fixtures. It applies to all non-coherent broadband electric light sources, including light-emitting diodes (LEDs), but excludes lasers. It evaluates and controls the photobiological hazards of optical radiation in the wavelength range of 200 nanometers to 3000 nanometers.
1. Photochemical UV hazard (skin and eyes)
2. UVA hazard
3. Retinal blue light hazard
4. Retinal blue light hazard - small light source
5. Retinal thermal hazard
6. Retinal thermal hazard - low visual stimulus
7. Infrared radiation hazard to the eyes
8. Thermal hazard to the skin
- Risk Group 0 (No Risk): No photobiological hazard.
- Risk Group 1 (Low Risk): No photobiological hazard under normal exposure conditions.
- Risk Group 2 (Moderate Risk): Lamps do not produce photobiological hazards for those not sensitive to bright light and heat.
- Risk Group 3 (High Risk): Immediate exposure can cause photobiological hazards.
The IEC/EN 62471 standard reduces photobiological hazards caused by light radiation. If you have products requiring photobiological safety standard testing, you can consult China JJR Testing Laboratory for detailed cost estimates and timelines.
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