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Anti-Reflection Filter (AR coating)
Anti-Dirt Coating
Black Coating
Black Chrome Coating
Cold Mirror (Heat Transmission Filter)
Color Correction Filter
Dichroic Filters
Diffuser / Frosted Filter
Dielectric Mirror
Hot Mirror (Heat Reflection Filter)
Hard Coating
Honeycomb Louvers
IR Cut-off Filter
IR Transmission Filter
Neutral Density Filter
Pattern Glass Window
RGB/CMY Mixing Filter
RGB Bandpass Filter
Reflective Mirror RGB
Reflective Mirror Red
UV Cut-off Filter
UV Transmission Filter
Welding Notch Filter
Welding Notch Filter

The filter is an essential component in Automatic Darkening Welding Helmets. It helps cut off the infrared light and UV energy to protect the user’s eyes and facilitates the operation when people are welding.
Welding Notch Filter-1 Features:
Good protection from UV/ IR
High visible light transmission
Automatic darkening welding helmets

Standard Characteristics
540-580nm Tmax peak>50%
780-2000nm Tavg<0.1%
See Glass Substrates Here
Welding Notch Filter-2
Technical Specification
Humidity, Adhesion, and Abrasion Resistance is based on MIL-M-13508C regulations.
Custom Design Flexibility
Kupo's experienced engineers are available to customize the filter based on the specs you require.
Any request of a specified size and shape is welcome.
Please contact Kupo for further information!