Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, Blue Bandpass, BG40 Glass

Colored Glass Blue Absorptive Bandpass Filters

The FSQ-BG40 Colored Glass Bandpass Filter is a 50.8 x 50.8 mm square, blue bandpass optical filter made of Schott BG40 filter glass. These bandpass filters are precision polished for demanding research or OEM applications.

Specifications

Technical Specs

Type
Colored Glass Bandpass Filter
Material
Schott BG40 or equivalent
Center Wavelength
495 nm
FWHM
260 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 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
See How to Clean Optics

Type
Colored Glass Bandpass Filter
Material
Schott BG40 or equivalent
Center Wavelength
495 nm
FWHM
260 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 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
See How to Clean Optics

Resources & Downloads

3D Product Models

2D Product Drawings

COLOREDG-S(61 kB, PDF)

Other

FSQ-BG40 RoHS Certificate(702.1 kB, PDF)

Related Products

Similar

Description	Compatibility
Bandpass Filter, Colored Glass, 12.7 mm, Blue Bandpass, BG40 Glass	UNIVERSAL	Learn More
Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, Blue Bandpass, BG18 Glass	UNIVERSAL	Learn More
Bandpass Filter, Colored Glass, 50.8 x 50.8 mm, Blue Bandpass, BG38 Glass	UNIVERSAL	Learn More
Bandpass Filter, Colored Glass, 25.4 mm, Blue Bandpass, BG40 Glass	UNIVERSAL	Learn More

Compatible

Description	Compatibility
Cylindrical Lens Mount, Adjustable, 50.8 mm Max, +/- 5 Deg., 2 arcs sec	UNIVERSAL	Learn More
Optical Filter Holder, Drop-in, 50.8 mm Optics	UNIVERSAL	Learn More
Thick Optical Filter Holder, Thumbscrew Clamp, Up To 12 mm Thick	UNIVERSAL	Learn More

Need help?

Contact an Applications Specialist by sending us an email