No matter which must do a good job of eyeprotection measures to prevent eyes by laser influence, if not timelypreventive measures, serious will be formed when the blind, we attack of laserprotective glasses has greatly reduced the question. Who would like to see ashow so eyes will doubt it, so no matter where we will all must do the eyes ofthe protective measures come into contact with these cause laser, wearing alaser protective glasses you can for your eyes to protect the great effect. Thepresentation of laser protective glasses can prevent these attacks.
With the extensive use of laser skills inmilitary and civil areas, more and more attention has been focused on the laserprotection skills. The variety of laser protection materials is increasing dayby day. From the protection principle, laser protective materials can bedivided into three categories: one is now according to the linear opticalprinciple of laser protection, it contains absorption, reflective andabsorption reflection type; the two is based on the principle of laserprotection of nonlinear optics, it mainly uses the three order nonlinearoptical effects, including nonlinear absorption nonlinear refraction, nonlinearscattering and nonlinear reflection; the three is based on the principle oflaser protection transformation. The laser has the characteristics of strongdirectivity, good color and good coherence, which makes it widely used inmilitary, industrial and medical fields.
However, these characteristics of the laseris also a great threat to the human body. Human eyes are the most sensitive tothe laser organ, because the aggregation effect of light can make the eyeretina energy density increased 105 times, so the low dose can cause severedamage on the retina resulting in reduced vision and even blindness. How tocarry out useful laser protection, we have become a very important question,various countries have developed a corresponding laser protection standards.
As early as in 1962, the United States putforward some laser safety radiation limit. Now China's use of the mandatorynorms of laser safety are: laser protective glasses protective function testmethods laser protective glasses physiological health protection requestlaboratory laser safety rules.
With the development of laser technologyand today, in the different application scope will show the same effect,especially laser protective glasses, wear protective glasses with good laser isuseful to assist eyes to prevent external influence, the binocular visualacuity decreased, will present the question will be more and more, so Xiaobianremind we can in time for a good eye protection measures.
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