A 492nm bandpass filter with a Full Width at Half Maximum (FWHM) of 10nm indicates that the filter selectively allows light within a narrow range of wavelengths centered around 492nm to pass through effectively. The FWHM value of 10nm implies that the filter has a relatively high spectral resolution, allowing only light within approximately a 10nm range around 492nm to be transmitted.

These types of filters are commonly used in various scientific and engineering applications, such as fluorescence microscopy, optical sensing, and spectroscopy, where precise control over the wavelength of light is required for experimentation, analysis, or detection purposes.

Coligh’s stock standard 492nm optical bandpass filter FWHM 10nm feature:

• Feature: VIS bandpass filter
• Center wavelength: 492nm±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:  OD4, OD5, OD6, OD8
• Bandwidth: Narrow to 1nm
• 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