In light of the importance and diversity inour life has now become more and more important, so we are becoming more andmore important day for us to carry out an already diversified use of laserequipment. But in our laser protective glasses it seems that most of us lackthe real use of laser know, there is no reasonable use of understanding. Firstwe should know the characteristics of the laser in our days, and secondly, weshould know that we come to know the laser protective goggles under thefollowing types:
1 absorption type protective glasses: theprotective glasses are made of glass or plastics doped with inorganic ororganic dyes, and the selective absorption of the protective wavelength byusing the data makes the laser attenuation and then achieves the protectivepurpose.
2 reflective protective glasses: the lensthrough the gun film planning process, replacing the dielectric film coatedwith high refractive index and low refractive index on glass substrate. Theprotective glasses have a small field of view, usually at + 30. Less than.
3 composite type laser protective glasses:composite protective glasses are gathered the absorption and reflection of twokinds of skills as one made of protective glasses, with reflection andabsorption of two types of goggles induction function, of two or more specificwavelength of laser protection.
4 holographic laser protective glasses:This is a holographic laser based on optical components developed a new type oflaser protection devices. Fabrication of three-dimensional phase gratings onglass or plastic substrates using holographic photography.
5 micro explosion safety glasses: the lenscoated with a layer of a specific high brightness chemical film, when theincident laser energy beyond a certain value, the chemical "blasting"black, so that the lens is not completely transparent, and then protect theeyes from laser damage. The protective mirror is suitable for high powercontinuous laser.
6 photochemical reaction type laserprotective glasses: this kind of door mirror is in the two lens between thespecific chemical substances perfusion solution, when the laser intensityexceeds a certain value, the solution color becomes dark, and then blockspecific wavelength of the laser beam through the.
7 photoelectric protective lens: polarizedlenses and between this protective mirror is composed of two mutuallyperpendicular polarization directions holding a transparent ceramic plateelectrode. When the voltage on the two ends of the ceramic plate is changed,the optical rotation function is changed.
8 photochromic glass type protectivegoggles: the protective lens is made of special glass ceramics or specialplastic. These data are usually completely transparent, when the incident laserintensity immediately beyond the security value, and the laser lightabsorption, after the suspension can still recover lit.
9 lens type laser protective glasses: theprotective mirror consists of a convex lens, a concave lens and a planeinterference filter between the two lenses. It uses the usual flat narrow bandfilter, low cost, cheap. The new optical system and protection structure arevery high for low light or sunlight, so they are more useful than.
10 high intensity laser protective glasses:it consists of flat mirror optical switches and mirrors, can block highintensity laser radiation. The optical switch is a evaporated polymer elementthat has an absorptive function that protects laser radiation from visible tofar infrared rather than a fixed spectral band. Its protective function isrelated to beam intensity, but not to wavelength.
11: the aberration of laser protectiveglasses goggles usually in two layers of glass or glass paper filled with waterand alcohol, the attenuation of laser intensity using Fourier transformprinciple, avoid laser damage to the retina, protective wavelength can coverall spectral scale, without affecting the use of visual sensitivity.
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