A 405nm bandpass filter with a Full Width at Half Maximum (FWHM) of 10nm is a specialized optical filter designed to selectively transmit light centered around the wavelength of 405 nanometers (nm) while blocking or attenuating light outside this narrow spectral range.

A 405nm filter with a bandwidth of 10nm can find application in various fields where precise control over the wavelength of light is necessary. Here are some specific applications:

• Fluorescence Microscopy
• Biomedical Imaging and Diagnostics
• Optical Sensing and Spectroscopy
• Material Characterization
• Laser Systems
• Data Storage
• Communication Systems
• Environmental Monitoring

Coligh’s stock standard 405nm optical bandpass filter FWHM 10nm feature:

• Feature: VIS bandpass filter
• Center wavelength: 405nm±2nm
• Angle of incidence: 0°
• FWHM: 10nm±2nm
• Blocking range: 200-1100nm
• Blocking depth: OD4, OD6 and above
• Transmission average: Above 90%
• Thickness：1.0mm, 1.1mm
• Size: φ8mm, φ10mm, φ12.5mm, φ25.4mm, φ50mm mounted or unmounted
• Material: B270, K9, Fused silica

Custom option:

• Bandwidth: 10nm, 20nm, 30nm, 40nm, 50nm,  or any bandwith client request
• Angle of incidence: Depend on request
• Blocking depth:  OD5, OD6, OD8
• Size: round or square smaller than 150*150mm
• Material thickness: Depend on request
• Transmission and blocking rang: custom as per requirement or between 200nm to 1500nm