Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. Optical filter is widely used in medical instrument, finance, metallurgical, photography,cameras, navigation, military, biography instrument, optical instrument andscience field etc.

China star optics can supply a full range of filter. They are short pass, long pass, band pass, ultraviolet, infrared, heat absorbing, 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

Wavelength range:190nm to 4.5um

Thickness tolerance:+/-0.01mm-0.1mm

Edges:Fine

Ground Flatness:Up to Lambda/10

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