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68-656 25 mm Dia. Traditional Coated Infrared (IR) Longpass Filter; t=1mm 7300nm

68-656 25 mm Dia. Traditional Coated Infrared (IR) Longpass Filter; t=1mm 7300nm

Type
Filter
Subtype
Longpass Filter
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
Cut On Frequency
7300 nm

Material

Name
Germanium
Dispersion Equation
Sellmeier
n (λ)
5.3146589099372665
λ
588 nm
B1
0.4886331
C1
1.393959 μm2
B2
14.5142535
C2
0.1626427 μm2
B3
0.0091224
C3
752.19 μm2

68-656 25 mm Dia. Traditional Coated Infrared (IR) Longpass Filter; t=1mm 7300nm

The 68-656 is a 25 mm diameter Infrared (IR) Longpass Filter, offered by Edmund Optics. This filter is designed with a traditional coating, providing efficient infrared transmission and blocking shorter wavelengths of light. The filter's longpass characteristic implies that it begins transmitting at a specified wavelength (cut-on) and continues to transmit longer wavelengths, in this case, 7300nm.

The filter boasts a circular shape, with a diameter of 25 mm and a thickness of 1 mm, making it compatible with various optical systems. It is crafted from Germanium Burnett, a material known for its excellent transmission properties in the infrared spectrum.

The 68-656 filter features a coating on both the front and back surfaces, identified as 'edm 33-972'. This coating enhances the filter's performance, contributing to its durability and longevity. The filter's shape is defined as a Thin Lens, further expanding its potential applications in optical systems.

According to the provided data, this filter is currently in stock and available for purchase through the vendor's website. The link to the product page is provided for your convenience.

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