254nm  UV bandpass filter is a type of optical filter that is designed to transmit light within a specific range of wavelengths centered at 254 nm. It is commonly used in applications such as sterilization, DNA analysis,photo-oxidation and photo-polymerization, and in UV curing processes for adhesives, coatings, and inks.

Coligh’s 254nm filters , with a high level of transmission at 254nm, a narrow bandwidth, and excellent blocking of unwanted wavelengths outside the passband, our filters ensure accurate and reliable results every time.

Coligh’s  stock standard 254nm bandpass filter feature:

• Feature: UV interference bandpass filter
• Center wavelength: 254±5nm
• FWHM: 30±5nm
• Blocking range: 200-1100nm
• Transmission: Above 25%
• 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: D8,D10,D12,D12.5,D12.7,D15,D25,D25.4 or Custom size smaller than 100mm
• Transmission and blocking rang: custom as per requirement