A 650nm bandpass optical filters is an optical filter that transmits light in a narrow wavelength range around 635nm, while blocking or attenuating light in other wavelength ranges. This type of filter can be used in a wide range of applications, including: fluorescence microscopy, spectroscopy, optical communication, laser applications and sensing applications.

 

Coligh’s stock standard 650nm bandpass optical filters FWHM 20nm feature:

• Feature: VIS bandpass filter
• Center wavelength: 650±4nm
• FWHM: 20±4nm
• Blocking depth: OD2
• Transmission average: Above 85%
• Size: Any size below 100*100mm

Custom option:

• Bandwidth: any bandwith client request
• FWHM: 10nm, 25nm, 30nm, 35nm, 50nm, 60nm, 70nm
• Blocking depth:OD3, OD4, OD5 is availiable
• Size: round or square smaller than 100*100mm
• Thickness：0.5mm, 0.55mm, 0.7mm, 1.0mm, 1.1mm
• Material thickness: Depend on request
•  Transmission and blocking range: custom as per requirement or between 200nm to 1500nm