16. Coating: We can design and offer multiform coating as follow: Antireflecting coating(AR coating): MgF2 Single AR coating, Broadband coating, Single wavelength AR film, Dual wavelength AR film. Reflecting Film: Single wavelength Dielectric Reflecting film, Dual wavelength Dielectric Reflecting film, Broadband Dielectric Reflecting film, Au, Ag, Al reflecting film. Filter: Bandpass filter,long-wave-pass filter,interference filter,short-wave-pass filter, Infrared filter. Spectroscope: polarization prism, Polarization Beamsplitter. 17. Filters Band-pass filter, Spectrofilter , Neutral Density Filters, Interference Cut Filters UV bandwidth range: 100nm to 300nm VIS/NIR bandwidth range: 400nm to 700nm Far IR bandwidth range: 800nm to 14μm CWL Tolerance: ±5nm Out-of Band Blocking: T<0.01%~0.1% Transmittance at Center Wavelength: > 80%~95% FWHM: 10nm~150nm Incidence Angle:0°- 45° Sizes: 5mm to 100mm Single element or Composite