Today, laser screen technology laserprotection mirror staff for everyone to bring, we do not know the principle andstructure of laser protection mirror. Hope to bring you some help and understandingand understanding of laser goggles, then we come together to look at thespecific content of it.
When theincident laser energy exceeds a certain value, the anti-laser radiationprotection mirror micro-explosion type protective mirror: the appearance of thelens coated with a layer of specific high transparency chemical film. Chemicalsubstances explode black, so that the lens is completely opaque, so as toprotect the eyes from laser damage. The goggles are more suitable for highpower continuous lasers. But also sensitive to light intensity, the use ofnonlinear optics to achieve laser protection has become a hot topic in manycountries. Non-linear laser goggles made with this information are not onlywavelength-sensitive. Can be achieved at the same laser wavelength, the highlight density of light and low light transparency of the two indicators ofunity and balance.
It is reportedthat carbon-carbon polymer (C60 or C70 has a very large and very fast nonlinearoptical effect, but also a low light energy to achieve the anti-saturatedabsorption of information, with this information made of light Limiting thedevice to reduce the transmittance as the intensity of the incident lightincreases, thereby limiting the output light below a certain energy threshold.This data has a high visible light transmittance of more than 60%, but with lowoptical density, In the following 3, the anti-laser damage threshold isgenerally low.It is characterized by low absorption when the weak laser light,high transmission, and strong laser incident, the absorption is too low,because the nonlinear absorption from the electronic mechanism, so fastresponse , The response time is in the order of picoseconds.
Polycarbonateor similar properties of diamonds mixed with conductive polymer and inorganicsemiconductor materials made, the US Army Information Technology Laboratory hasbeen developed for giant pulse, broadband, ultra-
fast laser protection goggles.The recovery time is 109 seconds, the protection wavelength is in the visiblerange, and can be used to tune the laser protection and to resist the impact ofthe shrapnel. The effect of the laser beam on the absorption of the transientlaser is achieved by using its inherent nonlinear effect and charge exchangeprinciple. When the laser intensity exceeds a certain value, anti-laserradiation protection glasses photochemical reaction type Lasersafety glasses: This type ofgoggles are two lenses filled with a specific chemical solution. The color ofthe solution becomes darker, thereby blocking the transmission of the laserbeam of a specific wavelength.
When theintensity of the incident laser light beyond the safe value immediately afterthe discoloration, anti-laser radiation protection mirror discolorationglass-ceramic protective goggle: the protective lens is made of special glassor special plastic glass. This information is usually completely transparent.And the laser absorption, light can still be restored after the transparent.
To glasslenses as the matrix, an American invention patent. High temperatureevaporation of photochromic cuprous halide or cuprous copper halide halidecrystal material, for ultraviolet light and 400550nm wavelength range ofradiation is basically impermeable, and other visible bands were hightransmission, visible light transmittance More than 70%. Can blockhigh-intensity laser radiation. Optical switch is a vapor deposition polymercomponents, anti-laser radiation protection mirror High-intensity laserprotection mirror: by the plane mirror optical switch and mirror and othercomponents. Absorbability, able to protect from the visible to far infraredlaser radiation, rather than a fixed spectral narrow band.
The protectiveperformance is related to the intensity of the beam, irrespective of thewavelength. Use of Fourier transform principle to attenuate laser intensity,anti-laser radiation protection mirror aberration laser goggles: This gogglesare usually filled with water and alcohol between two layers of glass orcellophane. To prevent the laser damage to the retina, the protectionwavelength can cover the entire spectral range, without affecting the user'svisual sensitivity.