FILTER PRODUCTS

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Longpass Filters

Magnetron sputtered hard oxide coatings on precision polished Fused Silica substrates provide deep rejection and a sharp transition to very high transmission. Suitable for high-temperature applications. Offered in three standard sizes, with custom sizes available on request.

Specifications

Diameter: 12.5 mm
Thickness: 1.5 mm
Transmission Wavelength Range: 325-2000nm
Cut-On Wavelength: -- nm
Transmission: 91 %
we have many types of standard filters in stock ,can send samples to your for test very fas . Filter are used for selecting or filtrating the specific wave band, they are widely used in optical instrument. industrial measurement, environment protection and many other application. We can provides short filter,long pass filter,band ...

Specifications

Diameter: 25 mm
Thickness: 1 mm
Transmission Wavelength Range: 260 to 980-1100nm
Cut-On Wavelength: 260 to 980 nm
Transmission: 95 %
LP02-224R-25 224nm Filter
Semrock Inc
RazorEdge filters allow you to see the weakest signals closer to the laser line, especially for Raman spectroscopy applications. With their deep laser-line blocking, ultrawide and low-ripple passbands, hard-coated reliability, and high laser damage threshold, they offer lasting performance and value. 

Specifications

Diameter: 25 mm
Thickness: 3.5 mm
Transmission Wavelength Range: 200-550nm
Cut-On Wavelength: 224 nm
Transmission: 98 %
LP02-224RS-25 224nm Filter
Semrock Inc
RazorEdge filters allow you to see the weakest signals closer to the laser line, especially for Raman spectroscopy applications. With their deep laser-line blocking, ultrawide and low-ripple passbands, hard-coated reliability, and high laser damage threshold, they offer lasting performance and value. 

Specifications

Diameter: 25 mm
Thickness: 3.5 mm
Transmission Wavelength Range: 200-560nm
Cut-On Wavelength: 224 nm
Transmission: 98 %
LP02-248R-25 248nm Filter
Semrock Inc
RazorEdge filters allow you to see the weakest signals closer to the laser line, especially for Raman spectroscopy applications. With their deep laser-line blocking, ultrawide and low-ripple passbands, hard-coated reliability, and high laser damage threshold, they offer lasting performance and value. 

Specifications

Diameter: 25 mm
Thickness: 3.5 mm
Transmission Wavelength Range: 200-600nm
Cut-On Wavelength: 248 nm
Transmission: 98 %
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% %
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 %
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: 0.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 521-2600nm
Cut-On Wavelength: 521 nm
Transmission: 95 %
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: 0.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 645-2600nm
Cut-On Wavelength: 645 nm
Transmission: 95 %
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: 0.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 635-2600nm
Cut-On Wavelength: 635 nm
Transmission: 95 %
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: 420-2600nm
Cut-On Wavelength: 420 nm
Transmission: 95 %
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: 480-2600nm
Cut-On Wavelength: 480 nm
Transmission: 95 %
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: 540-2600nm
Cut-On Wavelength: 540 nm
Transmission: 95 %
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: 581-2600nm
Cut-On Wavelength: 581 nm
Transmission: 95 %
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: 25.0 mm
Thickness: 1.1 mm
Transmission Wavelength Range: 600-2600nm
Cut-On Wavelength: 600 nm
Transmission: 95 %
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: 750-2500nm
Cut-On Wavelength: 750 nm
Transmission: 95 %
There are 16 different Longpass Filters from suppliers and manufacturers listed in this category. In just a few clicks you can compare different Longpass Filters with each other and get an accurate quote based on your needs and specifications. Please note that the prices of Longpass Filters vary significantly for different products based on various factors including technical parameters, features, brand name, etc. Please contact suppliers directly to inquire about the details and accurate pricing information for any product model. Simply navigate to the product page of interest and use the orange button to directly reach out to the respective supplier with one click.

Did You know?

Optical filters selectively transmit light in a particular range of wavelengths. When designed to pass long wavelengths only, they are referred to as longpass filters. Longpass filters are designed to attenuate shorter wavelengths and transmit longer wavelengths over the active range of the target spectrum. Because they isolate specific wavelengths, longpass filters are desirable in systems where they can be used to trim exess wavelengths or stray light to reduce unwanted near band emissions. Longpass filters are useful in a variety of applications and can be used in combination with shortpass filters for custom bandpass filtering.