275nm UV Bandpass filter can be used with various instruments that require ultraviolet (UV) light in that range. Such as UV-Vis spectrophotometers, Fluorescence spectrophotometers, HPLC detectors, Gel documentation systems etc. Coligh’s 275nm bandpass filter enable the filters with high transmission at 275nm, narrow bandwidth, sharp cutoff and low level of stray light.

Coligh’s  stock standard 214nm bandpass filter feature:

• Feature: UV interference bandpass filter
• Center wavelength: 275±3nm
• FWHM: 15±3nm
• Blocking range: 200-1100nm
• Transmission: Above 20%
• Blocking depth: OD4
• Size: φ8,φ10,φ12,φ12.5, φ25.4,φ50mm mounted or unmounted
• Thickness: 4mm or 6mm mounted

Custom option:

• Bandwidth: 10nm, 12nm, 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
• Thickness: 1mm or depend on client’s request
• Transmission and blocking rang: custom as per requirement