We use the day for the use of opticalelements is always in constant selection we distinguish, it's just a day of themost exotic elements in life necessities is also essential for us. In our laserprotective glasses seems to grasp the use of the use of light is our mostpeculiar to a natural surrender, but now we will use light but in wantonlyindiscriminate use, so that the original gentle light is now Disasters pile upon one another.
What is laser protective glasses? Theessence is that when the incident laser energy crosses a certain value, thelaser radiation protection mirror micro explosion protection lens: the lens ofthe outer surface of a layer of specific high transparency chemical film. Thechemical burst into black, so that the lens is completely opaque, and thenprotect the eyes from the laser damage.
It has become ahot spot in many countries to complete laser protection by using nonlinearoptical theory. The nonlinear laser protective glasses made of this materialare not only sensitive to wavelength. Can be completed in the same laser waveof interest, the high light density of light and the weak light of the hightransparency of the two objectives of unity and co-ordination. According toreports, the carbon carbon polymer (nonlinear optical effect, C60 or C70 has agreat and fast and is still a low light energy to complete the full antiabsorption material, light confinement devices made of this material can beadded with the light transmittance of incident light intensity decreased, thenthe output constraint in the following a certain energy threshold. The visiblelight transmittance of this material is higher than 60%, but the light densityis low, usually below 3, and the laser damage threshold is usually low. It ischaracterized by that when the weak laser is less, the absorption is less, andthe transmission is high. Due to the nonlinear absorption from the electronicmechanism, the response is fast, and the echo time is of the order of thepicosecond. When the laser intensity exceeds a certain value, the anti laserradiation protection mirror photochemical reaction type laser protectiveglasses: this kind of protective lens is the solution of the specific chemicalperfusion between the two lenses. The color of the solution becomes deeper, andthen the laser beam is blocked at a certain wavelength.
Laserapplication in the beginning we all are in but also because as cheerful as alark, let's put our laser could seek blessing now become a double-edged sword,which we have to say is a great irony. It is expected that we will be able touse a variety of laser equipment in the use of time division can be found thatthe limitations of the laser and targeted, even if wearing a good laserprotective glasses, do a good job on the laser to prevent.
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