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Page 13 - Optical Filters for Precise Wavelength Control

FNG4050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG4050 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG3050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG3050 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG2550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG2550 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG2050 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG2050 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG1550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG1550 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG0850 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0850 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG0650 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0650 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG0550 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0550 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG0450 - Absorptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0450 - Absorptive Glass Neutral Density Filters
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 Inquire Price
FNG0250 - Aborptive Glass Neutral Density Filters
Knight Optical (UK) Ltd
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FNG0250 - Aborptive Glass Neutral Density Filters
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 Inquire Price
FNP3050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP3050 - Gelatine Neutral Density Filters
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 Inquire Price
FNP4050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP4050 - Gelatine Neutral Density Filters
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 Inquire Price
FNP2050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP2050 - Gelatine Neutral Density Filters
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 Inquire Price
FNP1050 - Gelatine Neutral Density Filters
Knight Optical (UK) Ltd
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FNP1050 - Gelatine Neutral Density Filters
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
581FDS50 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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581FDS50 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 390-580nm
Cut-Off Wavelength: 580 nm
Transmission: 95 %
...
Data Sheet Inquire Price
450FDS25 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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450FDS25 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 374-449nm
Cut-Off Wavelength: 449 nm
Transmission: 95 %
...
Data Sheet Inquire Price
510FDS12 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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510FDS12 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 370-563nm
Cut-Off Wavelength: 563 nm
Transmission: 95 %
...
Data Sheet Inquire Price
500FDS50 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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500FDS50 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 368-500nm
Cut-On Wavelength: 500 nm
Transmission: >95% %
...
Data Sheet Inquire Price
490FDS50 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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490FDS50 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 373-490nm
Cut-Off Wavelength: 490 nm
Transmission: 95 %
...
Data Sheet Inquire Price
500FDS25 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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500FDS25 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 25.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 370-500nm
Cut-Off Wavelength: 500 nm
Transmission: 95 %
...
Data Sheet Inquire Price
570FDS12 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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570FDS12 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 385-573nm
Cut-Off Wavelength: 573 nm
Transmission: 95 %
...
Data Sheet Inquire Price
560FDS25 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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560FDS25 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible ...

Specifications
Diameter: 25.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 375-560nm
Cut-Off Wavelength: 560 nm
Transmission: 95 %
...
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470FDS50 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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470FDS50 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible ...

Specifications
Diameter: 0.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 350-460nm
Cut-Off Wavelength: 460 nm
Transmission: 95 %
...
Data Sheet Inquire Price
730FDS12 - Dichroic Shortpass Filters
Knight Optical (UK) Ltd
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730FDS12 - Dichroic Shortpass Filters
Shortpass filters are designed to transmit wavelengths lower than the cut off point and reflect all higher wavelengths. Knight Optical\'s Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of ...

Specifications
Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 380-730nm
Cut-Off Wavelength: 730 nm
Transmission: 95 %
...
Data Sheet Inquire Price
615FDL12 - Dichroic Longpass Filters
Knight Optical (UK) Ltd
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615FDL12 - Dichroic Longpass Filters
Longpass filters are designed to transmit wavelengths higher than the cut on point and reflect all lower wavelengths. These dichroic longpass filters consist of thin-film dielectric coatings on glass with sharp transitions between the transmitted and reflected bands. Having negligible absorption they are suitable for high powers and ...

Specifications
Diameter: 12.5 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 615-2600nm
Cut-On Wavelength: 615 nm
Transmission: 95 %
...
Data Sheet Inquire Price