Bandpass filters are optical elements that are designed to transmit a specific spectral band with high efficiency, while reject others. The characteristics of the bandpass are controlled by multilayer dielectric coatings.      

• Variety of UV, VIS, and NIR wavelength range Available
• Deep Blocking and High Transmission
• Steep Transmission and Rejection Slopes

All filters are available in 12.7, 25.4, and 50.8mm diameters, or requested dimension.

Common Specifications:

· Transmission (%): >85

· Surface Quality: 40-20

· Optical Density OD: >4.0

· 10nm~50nm FWHM

· Substrate: H-K9L, Fused Silica or requested

Technical Information for reference：