Asahi Spectra proudly announces circular and linear variable ND filter , which optical density (OD) continuously varies from 0.04 to 5.0 with our proprietary monitoring technology. It is ideal for precise adjustment of light intensity, especially laser.

-Application-
1.Laser
2.Spectrometer
3.Any optical experiments in the laboratory

-Type-
1.Circular:Dia.120mm/t=2mm/Quartz Substrate
2.Linear:100x50mm/t=2mm/Quartz Substrate