Special Filter

i-Line Bandpass Filter

Non-shift bandpass filter corresponding to mercury i-line (365nm?

ND Filter

ND filter to moderate unnecessary light reflection on the surface and decay to a fixed ratio

Three Wavelength Bandpass Filter

Thress wavelength bandpass filter capable of 3 kinds of bandpass on one substrate

Notch Filter

Notch filter to reflect light of an arbitrary wavelength and transmit/decay light at other wavelength