Choose us oflaser protection lens, laser protective goggles after we become moreunderstanding to the different kinds of laser protective goggles to bring oureyes of different protection, the protection of security, for our eyes on thelaser work personnel contact, can in time to protect our eyes, when using thelaser protective goggles in time for our eyes to improve security, here smallmake up recommend using our laser protective goggles, let you can in use forour laser protective glasses more trust and recognition. There are varioustypes of laser goggles, different materials, different principles, anddifferent applications.
Therefore, toprovide effective protection against laser, it is necessary to make reasonableselection of laser goggles according to the specific use requirement. Choosinggoggles, first of all, according to the maximum output power of the laser used(or energy), beam diameter, pulse time determine parameters such as laseroutput maximum irradiance or maximum exposure. Then, according to thecorresponding wavelength and irradiation time of the maximum allowable exposureexposure limit (eye) determine minimum optical density value for the glasses,and on the basis of selecting appropriate protective goggles.
The specificconditions of choice are:
Maximumirradiation dose of Hmax (J/m2) or maximum irradiance Emax (W/m2);
Specificprotective wavelengths;
Minimum opticaldensity value of Dmin at the corresponding protection wavelength;
Thenon-uniformity, asymmetry and Angle effect of the protective lens, etc.
The ability toresist laser radiation;
6, visible lighttransmittance;
Structure andshape.
Laser goggles,laser goggles, laser glasses, laser protection, protective glasses we only havea pair of eyes, please protect! Laser standard and classification of the uslaser safety standard ANSI Z136.1 ANSI Z136.1 standard: measured by lightDensity (OD, Optical Density). The logical relation between the light densityOD and the transmittance of the ratio T: D = -log10 T. European laser safetystandard EN207 / EN208EN207 / EN208: consider the light density OD, and alsoconsider the damage threshold (power/energy density over time). According tothe American laser safety standard ANSI Z136.1 and the European laser safetystandard EN207 / EN208, the laser can be classified by the following criteria.
CategoryDefinition of a Class Definition suggest the Suggestion 1 no dangerous don'tneed 1 m glasses safe visible laser laser protective glasses (400-700 nm), withno Optical amplifier don't need laser safety goggles 2 glasses of visible laser(400-700 nm), 0.25 seconds blink safe no need laser protective glasses 2 mglasses safe visible laser (400-700 nm), 0.25 seconds to blink security, withOptical amplification recommend the use of laser protective glasses 3 r lookingdirectly at the laser may not be safe, maximum permissible exposure (MPE), thevisible part of the 2nd level laser is five times, without visible part is 5times of grade 1 laser suggested the use of laser protective glasses 3 b tolook straight laser safety, diffuse avoid recommend the use of laser protectiveglasses 4 direct and diffuse reflection laser are unsafe must use laserprotective glasses Optical Density Optical Density transmittance Attenuationcoefficient of Transmission % Attenuation Factor 0100%, 1 110% 10 21% 10030.1%, 1000 40.01%, 10000 50.001%, 1000 21%, 1000000 70.00001%, 10000000 laserprotective glasses selection guide
Lasercharacteristics: the output wavelength and power density of the laser.
Light DensityOptical Density (OD) : the greater the number of OD, the stronger theprotective ability of the laser goggles.
Visible LightTransmittance (VLT) : VLT is less than 20%, and laser goggles are used in goodlighting.
Frame of Frame:wear myopic glasses, facial outline.
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