A 535nm bandpass optical filters with a full width at half maximum (FWHM) of 10nm is a type of optical filter that allows only light in a specific range of wavelengths centered at 535nm to pass through while blocking other wavelengths of light.

This type of filter is commonly used in applications such as fluorescence microscopy, flow cytometry, and spectrophotometry, where it is important to selectively isolate light emissions from specific fluorophores or chromophores. The 535nm wavelength range is often used to detect green fluorescence from dyes such as Alexa Fluor 488, FITC, or GFP.

By using a bandpass filter with a specific FWHM, it is possible to enhance the signal-to-noise ratio of the desired fluorescence signal and to reduce background noise from other sources of light. The FWHM of 10nm indicates that the filter will pass wavelengths ranging from approximately 530nm to 540nm, with the peak transmission at 535nm. This filter can be combined with other filters in a filter cube for multi-color fluorescence imaging and analysis.

Coligh’s  stock standard 535nm bandpass Optical filters FWHM 10nm feature:

• Feature: bandpass Optical filter
• Center wavelength: 535±2nm
• FWHM: 10±2nm
• Blocking range: 200-1100nm
• Transmission: Above 85%
• Blocking depth: OD4
• Size: φ8,φ10,φ12,φ12.5, φ25.4,φ50mm mounted or unmounted
• Thickness: 4mm or 6mm mounted

Custom option:

• Bandwidth: 20nm, 25nm, 30nm, 40nm, 55nm or other bandwidth client requests
• Blocking depth: OD3, OD4, OD6, OD8
• Size: 6*6mm, φ8,φ10,φ12,φ12.5,φ12.7,φ15,φ25,φ25.4,φ30mm,φ50mm, 50*50mm or Custom size round or square smaller than 100mm
• Thickness: 1mm or depend on client’s request
• Transmission and blocking rang: custom as per requirement