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FGB25M Dia:25 mm UG5 Colored Glass UV-Passing Filter; SM1-Threaded Mount

FGB25M Dia:25 mm UG5 Colored Glass UV-Passing Filter; SM1-Threaded Mount

Type
Filter
Subtype
Color Glass
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm
Cut Off Frequency
445 nm
Cut On Frequency
315 nm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167817367777034
λ
588 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

FGB25M Dia:25 mm UG5 Colored Glass UV-Passing Filter; SM1-Threaded Mount

The FGB25M is a color glass filter manufactured by Thorlabs, a leading global supplier of photonics equipment. This filter, with a catalog number FGB25M, is designed for use in UV-passing applications, featuring a wavelength of 588 nm. The filter is circular in shape, with a diameter of 25 mm and a thickness of 2 mm, making it compatible with a wide range of optical systems.

The FGB25M filter is made from high-quality n-bk7 Schott glass, a material known for its excellent optical properties. It is coated on both the front and back with Thorlabs' proprietary coating, identified as 'tho fgb25'. This coating enhances the filter's performance, ensuring efficient UV-passing capabilities.

The filter's physical data includes a cut-on wavelength of 315 nm and a cut-off wavelength of 445 nm. This means that it allows light with wavelengths between these two values to pass through while blocking light of other wavelengths. This feature makes it ideal for applications that require the selective filtering of UV light.

The FGB25M filter is SM1-threaded, allowing it to be easily integrated into various optical systems. The filter's availability and in-stock status are indicated on Thorlabs' website, ensuring users can access this high-quality component whenever they need it.

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