220nm UV bandpass filters are typically used in scientific and industrial applications such as fluorescence microscopy, spectroscopy, and lithography.

Coligh’s 220nm filter could effectively block UV-C radiation while maintaining high transmission in the desired range, have high optical density, be durable, and compatible with different optical setups.

Coligh’s  stock standard 220nm bandpass filter feature:

• Feature: UV interference bandpass filter
• Center wavelength: 220±3nm
• FWHM: 15±3nm
• Blocking range: 200-1200nm
• Transmission: Above 15%
• Blocking depth: OD4
• Size: φ8,φ10,φ12,φ12.5, φ25.4,φ50mm mounted or unmounted
• Thickness: 4mm or 6mm mounted

Custom option:

• Property: UV interference bandpass filter
• Bandwidth: 10nm, 15nm, 20nm, 40nm, 60nm or other bandwidth client requests
• Blocking depth: OD2-OD6
• Size: φ8,φ10,φ12,φ12.5,φ12.7,φ15,φ25,φ25.4,φ30mm or Custom size smaller than 100mm
• Transmission and blocking rang: custom as per requirement