Laser marking machine on the human body will produce radiation? This is a problem we are all concerned about, because laser marking machine laser light source is relatively special, this type of laser is to a certain extent, there is radiation, according to the laser marking machine radiation is different, CDRH IEC with the laser Marking machine is divided into four levels, then we work together to understand.
Level 2: The radiation range is in the visible region with an AEL value equivalent to 0.25 seconds exposure to the radiation of the first stage product. This level of product requires additional warning signs for safety testing.
The third level: divided into 3a and 3b two levels. 3a level for the glare of the normal avoidance response to the people, will not cause harm to the naked eye, but for the use of lens equipment to observe the situation, it will cause harm to the human eye. Class 3b products include radiation in the 200 nm to 1,000,000 nm range, which can result in accidental injury if the naked eye looks straight. Its management and control is more stringent than the second level.
Level 4: AEL above the third level, not only in the direct vision will cause harm to the human eye, in other cases will cause extra harm. Not only for the eyes, it may also hurt the skin and even cause a fire. Such products should be strictly managed and controlled.
According to the CDRH standard, the output power of the first-stage product should be under 8.5 mW for the optical fiber communication system using the 1550 nm laser and the single-mode optical fiber, and the fourth stage is greater than 500 mW. According to the IEC standard, the output power of the first stage products should be below 10mW for optical fiber communication systems using 1550nm lasers and single mode optical fibers. The output power is less than 50mW and the fourth stage is more than 500mW.
Laser marking machine is a high-tech products, is the most advanced laser marking equipment, after the investigation of scientific researchers found that laser marking machine in general is no harm to the body, but not to say that there is no point Hazard, do any work may be harmful, we can be assured of use.