Longpass Filter, Colored Glass, 50.8 x 50.8 mm, 725 nm Cut-on, RG9 Glass

Colored Glass Absorptive Longpass Filters

The FSQ-RG9 Colored Glass Longpass Filter is a 50.8 x 50.8 mm 725 nm cut-on optical filter made of Schott RG9 filter glass. This long-wave pass edge filter is precision polished for demanding research or OEM applications.

Specifications

Technical Specs

Size
50.8 x 50.8 mm
Type
Colored Glass Longpass Filter
Optic Size
50.8 x 50.8 mm
Cut-on Wavelength
725 nm
Cut-onCut-off Wavelength
725 nm
Angle of Incidence
0°
Surface Flatness
≤4λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Damage Threshold
30 W/cm² CW, Typical
Schott Glass Number
RG.9
Thickness
2.0 to 3.0 mm, typical

Thickness Tolerance
±0.1 mm
Clear Aperture
central ≥ 80% of area
Wedge
≤3 arc min
Material
Schott RG9 or equivalent
Chamfers
Up to 1 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Size Tolerance
±0.3 mm

Size
50.8 x 50.8 mm
Type
Colored Glass Longpass Filter
Optic Size
50.8 x 50.8 mm
Cut-on Wavelength
725 nm
Cut-onCut-off Wavelength
725 nm
Angle of Incidence
0°
Surface Flatness
≤4λ at 632.8 nm over the clear aperture
Surface Quality
60-40 scratch-dig
Damage Threshold
30 W/cm² CW, Typical
Schott Glass Number
RG.9
Thickness
2.0 to 3.0 mm, typical

Thickness Tolerance
±0.1 mm
Clear Aperture
central ≥ 80% of area
Wedge
≤3 arc min
Material
Schott RG9 or equivalent
Chamfers
Up to 1 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Size Tolerance
±0.3 mm

Resources & Downloads

2D Product Drawings

COLOREDG-S(61 kB, PDF)

Other

FSQ-RG9 RoHS Certificate(265.1 kB, PDF)
FSQ-RG9_ROHS2-2021.pdf(279 kB, PDF)

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