Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, Blue Bandpass, BG38 Glass
The FSQ-BG38 Colored Glass Bandpass Filter is a 50.8 x 50.8 mm square, blue bandpass optical filter made of Schott BG38 filter glass. These bandpass optical filters are precision polished for demanding research or OEM applications.
Specifications
Type
Colored Glass Bandpass Filter
Material
Schott BG38 or equivalent
Center Wavelength
470 nm
FWHM
271 nm
Angle of Incidence
0°
Size
50.8 x 50.8 mm
Size Tolerance
±0.3 mm
Thickness
2.0 to 3.0 mm, typical
Surface Flatness
≤2λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Damage Threshold
30 W/cm2 CW, typical
Wedge
≤3 arc min
Clear Aperture
central ≥ 80% of area
Chamfers
Up to 1 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
Type
Colored Glass Bandpass Filter
Material
Schott BG38 or equivalent
Center Wavelength
470 nm
FWHM
271 nm
Angle of Incidence
0°
Size
50.8 x 50.8 mm
Size Tolerance
±0.3 mm
Thickness
2.0 to 3.0 mm, typical
Surface Flatness
≤2λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Damage Threshold
30 W/cm2 CW, typical
Wedge
≤3 arc min
Clear Aperture
central ≥ 80% of area
Chamfers
Up to 1 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning