Longpass Coloured Glass Filter Filter Φ25mm Transparent | GU OPTICS
Longpass Coloured Glass Filter Filter Φ25mm Transparent

Longpass Coloured Glass Filter Filter Φ25mm Transparent

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Product No. 259024

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Dia Φ25mm
CWL 320nm
Filter Color Transparent
Material Coloured-glass
Glass Model WG320
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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