Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. And they are widely used in scientific experiments and industrial applications where that change is necessary. Color Separation Filter,Neutral Density Filter,Filter,Short/Long Wave Pass Filter,Bandpass Filter and Interference Filter

Specification of our color filter as follow:

Material:Filter Glass,BK7

Dimension: 4mm-160mm - 0.20mm

Squares/Rectangles:1mm-165mm

Thickness:0.5mm-4mm

Thickness tolerance:+/-0.01mm-0.1mm

Paralism: Up to 3 Arc minutes

Edges:Fine

Ground Flatness:Up to Lambda/10

Surface quantity: 80/50-20/10 Scratch/Dig