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149-20-140 Laser Glasses
2780 nm, 2940 nm Er:YAG Laser Safety Glasses
Product colors may be different from what is shown.
Our Price: $79.00

Product Code: 149-20-140

149-20-140 is a light-weight frame style with a coated scratch-resistant polycarbonate laser filter. Lenses have superior optical clarity with virtually no distortion to reduce eye fatigue. It is ideal for use in most laser applications and comfortable for long periods of wear. 140 laser filter offers protection from Er:YAG lasers (2780 nm, 2940 nm). Please see Technical Specs for additional information about the frame and the filter or contact us. Filter specifications are permanently engraved.

140 Laser Protective Filter

OD Specifications (Optical Density):
OD 4+ @ 2780 nm
OD 4+ @ 2940 nm
Optical Density: is a measure of the transmittance of an optical element for a given length at a given wavelength λ. The higher the optical density, the lower the transmittance of light at a specified waveleng. See the ANSI Z136 for more information about OD and laser glasses.
VLT (Visible Light Transmission):
VLT: The attenuation of light by a filter in the visible spectrum. VLT is determined in relation to standard illumination and evaluated according to the daylight-adapted (photopic) or night-adapted (scotopic) conditions descriped more in the ANSI Z136.7 for Testing and Labeling of Laser Protective Equipment. The lower the VLT, the less "visible" light is transmitted. Laser glasses may affect the ability to see warning lights/signs or distinguis between colors.
View Through Laser Glasses Filter*:
laser glasses filter view
*View Threw Laser Glasses Filter is a general representation of the visibility through the laser glasses. The color and transmitted light may vary from what is shown. Please contact us for more information about this laser filter and appropriate viewing conditions was well as wavelengths that may not be visible because of these laser glasses.

Frame 20 Laser Glasses Specifications

Laser Glasses Description:
Economy spectacle style frame constructed of durable nylon with side shield protection.
Laser Glasses Dimentions:
Height: 55 mm
Width: 142 mm
Length: 150 mm

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