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. 

VY Optics Photoelectric Technology Co.,Ltd. can supply a full range of filter. They are short pass Filter, long pass Filter, band pass Filter, ultraviole Filtert, infrared Filter, heat absorbing Filter, and color temperature conversion filters. We use material by China to Schott, Hoya, and other manufacturers to process them. Metallic films, colored glasses and thin dielectric films filter are all available per your requirements.

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