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 Home > Filters > Bandpass Filters > Interference Filters > 632+/-10nm Narrow Laser Interference Filter
 
632+/-10nm Narrow Laser Interference Filter

 
Specifications:
Centre Wavelength(CWL):
632nm, TOL: +/-2nm
FWHM(Width of 50% point):
20nm
Transmission:
Tave>75% @ 628-636nm area
Size:
customized, from 2x2mm to Dia. 50mm, +/-0.1mm
Thickness:
0.3~1.1mm
Surface quality:
60/40~20/40
Clear aperture:
>90%, or full surface coatings
Substrate:
vary customized, such as B270, BK7, crystal, float or sodalime glass etc.
specially designed for 632nm LED or Laser light source
Wider area for high transmission, sharp slope curve.
Ion source assisted coating to reach a heat resistance, such as 70 C-degree, small temperature drift.
     
632+/-10nm (FWHM=20nm) very narrow laser interference filter, designed with Tave>75% @ 628~636nm area, with sharp slope curve. This filter has deeply cutoff all other spectrums unneeded to get a most pure laser light. However, more narrow bandpass area, lower transmission will be allowed. A +/-4nm width area of high transmission can promise the filter transmit the exact expected light. It is widely used for medical treatment, biomedical identification, laser measuring equipment etc.
 

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