Standard level 1 lasers have a power output of less than 0.4 milliwatts, because they do no damage to the eyes or skin under any conditions, or even to the human body when focused through an optical system, so they do not need to be specifically regulated. Substitution words, is due to the frequency of the laser photons are (as for visible light color), phase (light is a wave, vibrate, phase as now the location of the vibration) and amplitude (for visible light is brightness) are all the same, meet each other mutual interference will happen (simply said that the same phase and frequency amplitude superposition, a reverse phase frequency amplitude of the cut). Because the surface is rough, the photons in a laser beam bounce off the rough surface, so that the spot where they meet becomes brighter when they meet a photon in the same phase, and darkens when they meet a photon out of phase. Only technicians or professionals in this field are authorized to use infrared lasers on special equipment. Protective laser glasses must be worn at all times to protect against intense infrared radiation. Always be careful.
In the process of high power high powered laser processing, there are many factors affecting laser thermal processing. For the laser beam, the main factors are the focus power density, focal spot shape, intensity distribution and focal spot drift, etc. These parameters are not only related to the laser output power, but also depend on the distribution and stability of beam mode. Infrared laser has high coherence and strong monochromatic properties, and high power and high energy laser can be easily absorbed temporarily by human eyes. Infrared lasers can be easily focused on the retina and form images by refracting the eye medium. Energy from very low power lasers can cause temporary damage to the cornea or retina. The high safety standards of the design perfectly protect the laser operators used. High power portable green laser. The rugged case ensures that the high-power laser will remain in optimum condition in any operating environment, even in severe weather. Laser gadgets can't deform.
Because the laser pointer has good directivity and concentrated energy, you can use it in many aspects of your life, such as positioning, indicating and signal transmission. However, because of its power, objects illuminated at a close distance absorb the energy emitted by the laser at the point of exposure, which is converted into heat energy, thus raising the temperature of the object. When the temperature is above the melting or ignition point, it melts or catches fire. The balloon displayed at the show exploded because the laser was hotter than the maximum temperature of the rubber support. Similarly, lasers directed at human tissue have a thermal effect.
