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:
Dimension: 4mm-160mm - 0.20mm
Paralism: Up to 3 Arc minutes
Ground Flatness:Up to Lambda/10
Surface quantity: 80/50-20/10 Scratch/Dig
|Range of diameter||Dia.0.7mm-Dia.400mm|
|Range of curve radius||R1.5-R∞ etc.|
|Tolerance of diameter||+/-0.1, +/-0.01, +/-0.005 etc.|
|Surface accuracy||λ , 1/2λ , 1/4λ , 1/10λ etc.|
|Tolerance of Thickness||+/-0.1, +/-0.05, +/-0.01 etc.|
|Centration||+/-2′, +/-1′ etc.|
|Aperture N||5, 1 etc.|
|Irregularity ΔN||2, 1, 0.5, 0.2 etc.|
|Surface quality||60/40, 40/20, 20/10, 10/5 etc.|