Longpass Coloured Glass Filter Filter Φ50mm Black | GU OPTICS
Longpass Coloured Glass Filter Filter Φ50mm Black

Longpass Coloured Glass Filter Filter Φ50mm Black

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Product No. 259066

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Dia Φ50mm
CWL 780nm
Filter Color Black
Material Coloured-glass
Glass Model RG780
Surface Accuracy λ/2 @ 633 nm (25mmArea)
Parallelism <1arcmin
Surface Quality 40/20-60/40
Dimension Tolerance +0.0/-0.2mm
Thickness 2mm ±0.2mm
Central Wavelength Tolerance ±10nm
T Tavg>85%
Coloured glass filters absorb and transmit different spectral bands. Unlike dielectric filters, the center wavelength does not change when the AOI of the beam changes. Grand Unified Optics provides all kinds of optical coloured glass filters to suit your application.
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