A 615nm optical bandpass filter with a full width at half maximum (FWHM) of 10nm is a type of optical filter that allows light with wavelengths centered around 615nm to pass through, while blocking or attenuating light with other wavelengths.

This type of filter can be useful in a variety of applications, such as in fluorescence microscopy, where it can be used to selectively transmit the emission wavelength of a fluorophore that emits light at 615nm. It can also be used in spectroscopy and imaging applications where the wavelength range of interest is in the vicinity of 615nm, such as in the study of the absorption or emission spectra of certain materials or biological samples.

Coligh’s  stock standard 615nm optical bandpass filter FWHM 10nm feature:

• Feature: bandpass filter
• Center wavelength: 615±2nm
• FWHM: 10±2nm
• Blocking range: 350-850nm
• Transmission: Above 70%
• 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, 45nm or other bandwidth client requests
• Blocking depth: OD3, OD4, OD5, 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