New bright spot of the laser protectivegoggles, laser radiation protective goggles microexplosion type protectivegoggles: on the surface of the lens with a specific layer of high transparency,chemical film, when the incident laser energy is more than a certain value, thechemical explosion turned black, opaque lens completely, so as to protect hiseyes from laser damage. The protective mirror is suitable for high powercontinuous laser. The use of nonlinear optics to realize laser protection hasbecome a hot topic in many countries.
Made of this material nonlinear laserprotective goggles is not only sensitive to wavelengths, and is also sensitiveto strong light, it can achieve the same laser wavelength, the light of highdensity and high transparency of weak light the unity of the two indicators andconsideration. According to the report, carbon - carbon polymer (C60 / C70)with large and extremely fast nonlinear optical effect, but also to realize thesaturation under a lower light energy absorption material, with opticallimiting device made of this material, can make the light transmittancedecreases with the increase of the incident light intensity, and to make theoutput light limit under certain energy threshold.
The visible light of this material ishigher than 60 percent, but the light density is low, generally below 3, andthe laser damage threshold is generally low. It is characterized by lowabsorption in low laser incidence, high transmission, and low transmissionthrough high laser incidence. Because the nonlinear absorption comes from theelectronic mechanism, the response time is fast, the response time is PIsecond.
Laser radiation proof protective gogglesphotochemical reaction type laser protective goggles: this type of protectivegoggles is between the two lenses perfusion solution of specific chemicals whenlaser intensity beyond a certain value, the solution color darker, to stop thelaser beam through a particular wavelength. Anti-laser radiation protectionmirror: this protective lens is made of special microcrystalline glass orspecial plastic.
The material is completely transparent, atordinary times when the incident laser intensity is more than what isimmediately after change color, and the laser absorption, light stopped stillcan restore transparency. Anti-laser radiation protection mirror high strengthlaser protection mirror: it is composed of a mirror optical switch andreflector, which can block high-intensity laser radiation. Optical switch isdeposition polymer components, it has absorption performance, protection fromvisible light to infrared laser radiation, rather than a fixed narrowbandspectrum. Its protective properties are related to beam strength, notwavelength.
The laser radiation protection mirror badlaser protective goggles: this protective goggles is usually between two layersof glass or cellophane filled with water and alcohol, attenuation of laserintensity by using Fourier transform principle, to avoid the laser damage tothe retina, protective wavelength can cover the entire spectrum, and does notaffect users' visual acuity.
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