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All Products / Optics / SCHOTT Optical Components / SCHOTT Calibrated Neutral Density (ND) Filters
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SCHOTT NG5 633nm 50mm Sq., 3.0 OD ND Filter

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Stock #21-375 3-4 days
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£70.13 £140.25
Qty 1-9
£70.13 £140.25
Qty 10+
£62.90 £125.80
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Dimensions (mm):
50.0 x 50.0 ±0.2
Optical Density OD (Average):
3.0 ±0.074 at Calibrated Wavelength
Clear Aperture CA (mm):
48.5 x 48.5
Design Wavelength DWL (nm):
633
Glass/Filter Number:
SCHOTT NG9
Coating:
Uncoated
Surface Quality:
60-40
Transformation Temperature (°C):
469
Thickness (mm):
2.24 (nominal)
Transmission (%):
0.1 ±0.03 at Calibrated Wavelength
Type:
Neutral Density Filter
Parallelism (arcmin):
≤3
Edges:
Fine Grind
Bevel:
0.5 x 45°
Shape of Back Surface:
Plano

Regulatory Compliance

RoHS:
Compliant
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Certificate of Conformance:
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Product Family Description

  • Calibrated for Specific Wavelengths
  • Optical Densities Ranging from 0.3 to 3.0
  • NG3, NG4, NG5, NG9, or NG11 Glass Types

SCHOTT Calibrated Neutral Density (ND) Filters are tested and calibrated to a precision optical density tolerance at either 405nm, or 633nm, or 785nm. Manufactured from NG3, NG4, NG5, NG9, or NG11 SCHOTT Glass, the filters are ideal for providing precise attenuation at common laser wavelengths. Available in optical densities ranging from 0.3 to 3.0, these filters can be integrated into a variety of optical systems and experiments. SCHOTT Calibrated Neutral Density (ND) Filters are available in a standard 50 x 50mm size and multiple filters can be stacked to achieve custom optical densities. The measured OD value for each filter at the specified wavelength is referenced on the box.

Note: Please contact us if your application requires a custom size SCHOTT Calibrated Neutral Density (ND) Filter.