CWLASER 190nm-450nm / 800nm-1700nm Wavelength Laser Safety Glasses for Typical 445nm 980nm 1064nm 1080nm 1100nm (T4) |

CWLASER 190nm-450nm / 800nm-1700nm Wavelength Laser Safety Glasses for Typical 445nm 980nm 1064nm 1080nm 1100nm (T4) |

Descriptions:

Wavelength: 190nm-450nm & 800nm-1700nm
Optical density: OD 4+ - OD 6+
Visible light transmittance: 40%
Safety glasses for violet, blue, infrared laser exposure.
EN207: 1998 + A1: 2002 approved (European laser eyewear standards for laser safety eyewear).
Delicate and cool appearance. Comfortable to wear.
Absorption type full protection for your eyes.

What is "Optical Density (OD)" and "Visible Light Transmittance (VLT)" ?
Usually we will see an OD number and VLT number on laser safety goggles or specification.
OD is short for Optical Density, usually we have class 1 to class 10 for OD class. A higher OD class means the glasses have a higher efficiency to adsorb typical laser light, we can choose the OD class according to your laser power.  
VLT is short for Visible Light Transmittance. A higher VLT means we can see more visible light, if the VLT is lower than 20%, we should use the laser goggles in a bright enviroment. The VLT affact by OD class and also affact by typical laser wavelength.

Material    ABS Plastic Frame, Polycarbonate Lens
Optical Density    OD 4+ - OD 6+
Size    15.5*18cm
Weight (kg)    0.3000

Warranty      6 Months
Pack Including    1 x Goggles, Glasses Case, 1 x Glasses Wipe Cloth

Service Life    2-3 Years (according to using time and laser power)