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39-380 50 mm Dia. Hard Coated OD 4.0 5nm Bandpass Filter; t=3.5 mm 785nm

39-380 50 mm Dia. Hard Coated OD 4.0 5nm Bandpass Filter; t=3.5 mm 785nm

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

Properties

Shape
Circular
Diameter
50 mm
Cut Off Frequency
787.5 nm
Cut On Frequency
782.5 nm

Material

Name
UVFS
Dispersion Equation
Sellmeier
n (λ)
1.4535811450227516
λ
785 nm
B1
0.6961663
C1
0.004679148 μm2
B2
0.4079426
C2
0.013512063 μm2
B3
0.8974794
C3
97.93400254 μm2

39-380 50 mm Dia. Hard Coated OD 4.0 5nm Bandpass Filter; t=3.5 mm 785nm

The 39-380 is a Bandpass Filter, specifically designed for use in optical systems that require a narrow bandwidth of light centered around 785nm. This filter, sourced from Edmund Optics, boasts a 50mm diameter and a thickness of 3.5mm, making it suitable for a wide range of applications.

The filter is made from UVFS Mal-1965, a material known for its optical properties. It features hard coating on both the front and back surfaces, denoted as 'edm 39-334', which enhances its durability and resistance to wear and tear.

The 39-380 has a cut-on wavelength of 782.5nm and a cut-off wavelength of 787.5nm, ensuring a tight bandpass around the central wavelength. This is further emphasized by the filter's Cut-On Wavelength (CWL) of 785nm, which is the wavelength at which the filter's transmission is at its maximum.

The filter's geometry, with a diameter of 50mm and a thickness of 3.5mm, allows it to be used in various optical setups. The circular shape and thin lens design ensure easy integration into existing systems.

The filter's current status is 'in stock', as indicated by its weblink, which is valid and leads to the product page on the Edmund Optics website. This information is subject to change, so it's recommended to check the weblink for the most up-to-date status.

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