At present, LEDs are widely used as garden lights, tunnel lights, and indoor places such as commercial lighting and office lighting. With the advancement of LED technology and the reduction of prices, the rising price of phosphors has brought cost pressure to traditional lighting, which provides a good opportunity for LEDs to enter the field of indoor lighting . However, less attention is paid to the fact that the total amount of radiation generated by each source point of the LED is not large, much less than the HID (high-intensity gas discharge) source, but it can concentrate very little energy in one direction. This also means that although LEDs are not as strong as lasers, local light hazards should be given special attention. Insiders pointed out that LEDs are still mostly in the sample stage, and the mainstream in the market is still traditional lighting products, but the product stage of LED will soon come. Once the LED enters the product phase, IEC/EN 62471 must be enforced, and the relevant testing laboratory must have the ability to match it, otherwise the light biosafety hazard may occur. Comments: Indeed, once the LED enters indoor lighting, its safety problems will become more prominent. If it is made into spotlights, desk lamps, flashlights, laser lecture pens, etc., it will cause children's interest, and its safety becomes more important. . For example, a small laser lecture pen that damages the child's eye if it shines directly into the child's eye. The hazard of LED illumination light intensity is objective and is the most protective part of the enterprise. Of course, it is very important and very difficult to correctly measure the evaluation index of the intensity of LED illumination. Even if the LED module meets the requirements, the luminaire does not necessarily meet the requirements; the luminaire should also consider the light distribution, and the maximum light intensity direction is not easily recognizable by the human eye, and must be carefully searched. These are not only domestic problems, but also bottlenecks in this field in international testing. As LEDs are about to enter home lighting, it is hoped that the entire industry will develop the right testing methods as soon as possible and designate qualified laboratory tests to minimize potential hazards.
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