Laser protective glasses you wear on it?We all know that the laser protective glasses in order to assist us very wellin the use of laser equipment in the eye in the use of primary equipment, fastand easy, high efficiency work progress together to strengthen the maintenanceof glasses, extensive use of laser protective glasses in order to make more useof laser equipment people to understand the effect of laser protective glasses.
Thelaser has the characteristics of strong directivity, good color and goodcoherence, which makes it widely used in military, industrial and medicalfields. But precisely these characteristics of the laser on the human body alsoconstitutes a great threat. The eyes are the most sensitive to human organsbecause of the focusing effect of laser, eye light can make the retina energydensity increased 105 times, so the low dose can cause severe damage on theretina resulting in reduced vision and even blindness. With the lasertechnology is widely used in military and civilian areas, laser protectionskills more and more to our attention, how useful a laser protection, we attachgreat importance to the question that countries accordingly developed laser protectionstandard. As early as in 1962, the United States put forward some laser safetyradiation limit.
From the protection principle, laserprotective materials can be divided into three categories: one is based on thenow laser protection principle of linear optical absorption type, it containsthe reflection type and absorption reflection type; two is based on theprinciple of laser protection of nonlinear optics, it mainly uses the threeorder nonlinear optical effects, including nonlinear absorption nonlinearrefraction, nonlinear scattering and nonlinear reflection; the three is basedon the principle of laser protection transformation, now China use mandatorynorms on laser safety are: laser protective glasses protection function testmethod, laser protective glasses physiological health protection request:laboratory laser safety rules, there are many types of laser protectiveglasses, the materials used are not the same principle, different applicationsare not the same.
Therefore, to provide for the laser usefulprotection must be in accordance with the request of a detailed application ofthe laser protective mirror for a reasonable choice. Choose the door mirror,first, the maximum output power of the laser on the basis of the use (or energy),beam diameter, laser pulse time parameters determine the maximum outputirradiance or maximum exposure. Then, according to the maximum amount of thecorresponding wavelength and light irradiation to time (eye shine limit)concluded that glasses the minimum optical density value, and then select theappropriate protective glasses. With the first selection conditions are: 1, themaximum amount of radiation or the maximum irradiance; protective wavelength of2 and 3, in particular; the corresponding protective wavelength of the minimumoptical density value; 4, the protective lens nonuniformity and non symmetry,the incident light view effect; 5, anti laser radiation power; 6, the visiblelight transmittance of 7, structure and appearance.
Want to use a nice laser protectiveglasses, please pay attention to our work products, are not the same indifferent regions by using the protective glasses, so it must understand thefunction of the goods in the selection, the selection in the wear do not go wrongyo, that is how we take small the selection of a centering safety in the use oflaser protective glasses supply assistance at the!
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