A 550nm optical longpass filter is an optical filter that blocks light below 550nm wavelength and transmits light above this threshold. This type of filter is commonly used in applications where it is necessary to remove unwanted shorter wavelength light and pass only longer wavelength light.

Coligh’s stock standard 550nm longpass filter:

• Type: longpass filter
• Coating: Hard coated
• Angle of incidence: 0°
• Wavelength cut on tolerance : 550+/-5nm
• Blocking depth: >=OD4@200-530nm
• Transmission: >90%
• Thickness: 1.0mm, 1.1mm, 0.5mm, 0.7mm
• Surface quality: 80/50, 60/40
• Size: smaller than 100*100mm

Custom option:

• Cut on and cut off wavelength: custom
• Working wavelength: according to client’s request
• Material and thickness: according to client’s request
• Surface quality: 40/20 is in option
• Size: Any size round or square smaller than 100*100mm