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narrow-band filter

Narrow band interference filter is a kind of narrow bandwidth, allowing specific wavelengths of light through the optical devices, so the short wavelength band cut-off or reflection.
My company's narrow interference filters using multilayer dural by ion assisted deposition of nano materials and high vacuum evaporation coating, good compactness, high image resolution.

Field of application:
Fluorescence analyzer, microplate, cable TV upgrade equipment, wireless communication equipment, mobile phone bar code scanning, infrared electronic whiteboard, infrared camera, infrared touch screen, iris recognition, infrared medical instruments, infrared printing ink recognition, red film recognition, face recognition sensor system. Handheld infrared laser rangefinder, laser range finder, optical instrument, medical equipment and testing instruments.

Optical index:

The band: 400nm-620nm, 650nm-850nm

Tmax<1%, Tave<0.2% @350nm-610nm,

Tmax<1%, Tave<0.5%@660nm-1100nm

Tmin>90%@635nm,

Wavelength: 635 ± 1nm

The peak transmittance: T>88%@630nm-640nm

Bandwidth: 20-25nm

Product curve:

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635nm narrow-band filter

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