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What glasses can prevent laser damage to glasses

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    2017-8-23 10:41
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    [LV.7]常住居民III

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    发表于 2017-1-2 11:08:39 |显示全部楼层
        Trust us to understand that laser protective eyewear is a special kind of glasses that can be used to avoid or reduce the damage of the laser. It is also an efficient safety goggles, suitable for a variety of lasers, laser pen, a series of optical safety glasses wearing comfortable and beautiful, safe and reliable. The laser protective glasses are reflective and absorptive, and can be used to protect the laser and the strong light of the specific band
        Laser has the characteristics of strong directivity, good color and good coherence, which makes it widely used in military, industrial and medical fields. But it is precisely these characteristics of the laser also pose a great threat to the human body. The eyes are the most sensitive to human organs because of the aggregation effect of laser, eye light can make the retina energy density increased 105 times, so the low dose can cause severe damage on the retina resulting in reduced vision and even blindness. With laser technology in military and civil areas are widely used, more and more laser protection skills was everyone's attention, how to become useful for laser protection, we attach great importance to the question that countries accordingly developed laser protection standard. As early as 1962, the United States put forward a number of laser safety exposure limits. From the protection principle, the laser protection data can be divided into three categories: one is based on the linear optical principle of laser protection, it contains absorption, reflective and absorption reflection type; the two is based on the principle of laser protection of nonlinear optics, it mainly uses the three order nonlinear optical effects, including nonlinear absorption nonlinear refraction, nonlinear scattering and nonlinear reflection; the three is based on the principle of laser protection transformation.
        There are many types of laser protective goggles, the information is not the same, different principles, the use of occasions are not the same. Therefore, in order to provide useful protection to the laser, the laser goggles must be selected reasonably according to the detailed requirements. Choose the door mirror, the maximum output power of the lasers used according to the primary (or energy), beam diameter, laser pulse time parameters determine the maximum output irradiance or maximum exposure. Then, according to the maximum amount of the corresponding wavelength and light irradiation to time (eye shine limit) concluded that glasses the minimum optical density value, and select the appropriate protective glasses.
      The detailed conditions of selection are:
        1, the maximum amount of radiation Hmax (J/m2) Emax (W/m2) or the maximum irradiance;
        2, specific protection wavelength;
        3, the optical density value of Dmin to the corresponding protective wavelength;
        4, the protective lens non-uniformity, asymmetry, the effect of the incident light point of view;
        5, anti laser radiation ability;
        6, visible light transmittance;
        7, structure and shape
        Laser protective glasses for the crowd: laser operators, computer operator, driver, gas welder, electric welder, high temperature furnace operating personnel, medical or industrial personnel to operate the X- light perspective; is suitable for protection of ultraviolet laser, excimer laser, Nd: glass laser, semiconductor laser, CO laser, Nd: YAG laser, ruby laser CO2 laser, laser and other lasers gaas.
       This paper provided by radium screen science and technology, please indicate that radium screen technology provide Laser safety glasses, Laser safety eyewear, Laser safety goggle, IPL safety glasses  and other products, please login (www.laserpair.com) consulting

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