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Page 5 - Neutral Density Filters

Andover Corporation Metallic Neutral Density Filters UV-VIS-NIR
Andover Corporation
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Andover Corporation Metallic Neutral Density Filters UV-VIS-NIR
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The Andover Corporation Metallic Neutral Density Filters UV-VIS-NIR are a type of absorptive neutral density (ND) filter that are ideal for a range of applications such as calibration, attenuation, low-power lasers, scientific measurements and research, machine vision, and other imaging applications.    These filters ...

Specifications
Attenuator Type: Other
Shape: Round, Square, Custom
Size: 12.5 mm
Optical Density: 0.4
Nominal Transmission: 91.0 %
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Neutral Density Filter-Absorptive
Union Optic
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Neutral Density Filter-Absorptive
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These are Neutral Density Filters (Absorptive type). They are made of absorptive glass and feature 80/50 scratch/dig quality.  Please contact us for details and ordering info.

Specifications
Attenuator Type: Absorptive
Shape: Round, Square, Custom
Size: 25.4 mm
Optical Density: 0.1-3
Design Wavelength: 400 - 700 nm
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Variable Neutral Density Filter
Union Optic
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Variable Neutral Density Filter
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Material B270 Glass Dimension Tolerance +0.0/-0.2mm Thickness 1.5±0.2mm Flatness <2λ@632.8nm Surface Quality 60/40 scratch and dig Parallelism <3 arc minutes Clear Aperture >90% Design Wavelength 400-700nm Coating Metallic reflective coating OD Tolerance ±5% of OD Extremes

Specifications
Attenuator Type: Other
Shape: Round, Square, Custom
Size: 50 mm
Optical Density: 0-3
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Neutral Density Filter-Reflective
Union Optic
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Neutral Density Filter-Reflective
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Material B270 Glass Dimension Tolerance +0.0/-0.2mm Thickness 2.0±0.2mm Flatness 2λ@632.8nm Surface Quality 80/50 scratch and dig Parallelism <5 arc minutes Clear Aperture >90% Design Wavelength 400-700nm Coating Metallic reflective coating OD Tolerance ±10% of OD

Specifications
Attenuator Type: Reflective
Shape: Round, Square, Custom
Size: 25.4 mm
Optical Density: 0.1-3
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FNG4050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG4050 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 4.0
Data Sheet
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FNG3050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG3050 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50x50 mm
Optical Density: 0.1
Data Sheet
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FNG2550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG2550 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 2.5
Data Sheet
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FNG2050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG2050 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 2.0
Data Sheet
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FNG1550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG1550 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 1.5
Data Sheet
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FNG0850 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0850 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 0.8
Data Sheet
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FNG0650 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0650 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 0.6
Data Sheet
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FNG0550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0550 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 0.5
Data Sheet
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FNG0450 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0450 - Absorptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 0.4
Data Sheet
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FNG0250 - Aborptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0250 - Aborptive Glass Neutral Density Filters
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Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters. Glass ND Filters are more robust and tend to have more uniform absorption characteristics. They also attenuate by absorption and so care must be taken to avoid overheating. Attenuation is achieved by polishing glass ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 0.2
Data Sheet
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FNP3050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP3050 - Gelatine Neutral Density Filters
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Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength. Gelatin ND filters are the cheapest but tend to have more fluctuation with wavelength and a narrower wavelength range than glass ND filters and metallic types.  Gelatine neutral density filters work by absorption ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 3.0
Data Sheet
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FNP4050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP4050 - Gelatine Neutral Density Filters
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Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength. Gelatin ND filters are the cheapest but tend to have more fluctuation with wavelength and a narrower wavelength range than glass ND filters and metallic types.  Gelatine neutral density filters work by absorption ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 4.0
Data Sheet
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FNP2050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP2050 - Gelatine Neutral Density Filters
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Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength. Gelatin ND filters are the cheapest but tend to have more fluctuation with wavelength and a narrower wavelength range than glass ND filters and metallic types.  Gelatine neutral density filters work by absorption ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 2.0
Data Sheet
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FNP1050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP1050 - Gelatine Neutral Density Filters
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Neutral density filters attenuate light by a constant amount that is, to first order, independent of the wavelength. Gelatin ND filters are the cheapest but tend to have more fluctuation with wavelength and a narrower wavelength range than glass ND filters and metallic types.  Gelatine neutral density filters work by absorption ...

Specifications
Attenuator Type: Absorptive
Shape: Square
Size: 50 mm
Optical Density: 1.0
Data Sheet
Inquire Price