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89-559 12.5 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 3-5µm

89-559 12.5 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 3-5µm

Type
Window
Subtype
Flat Window
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
12.5 mm

Material

Name
Germanium
Dispersion Equation
Sellmeier
n (λ)
4.024720747638282
λ
4000 nm
B1
0.4886331
C1
1.393959 μm2
B2
14.5142535
C2
0.1626427 μm2
B3
0.0091224
C3
752.19 μm2

89-559 12.5 mm Dia. Germanium Protective Flat Window; t=1 mm BBAR 3-5µm

The 89-559 is a 12.5 mm diameter Germanium Flat Window, with a thickness of 1 mm, designed for protective purposes. This Window boasts a Broadband Anti-Reflection (BBAR) coating on both the front and back surfaces, specifically optimized for the 3-5 µm wavelength range. The Window is sourced from the reputable vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.

The Germanium material of the Window is identified as "germanium burnett", and it is designed to operate at a wavelength of 4000 nm. The BBAR coating on both surfaces enhances the Window's performance by reducing reflection and increasing transmission, making it an ideal choice for applications that require high transmittance in the specified wavelength range.

The Window's geometry is defined by its diameter and thickness. With a diameter of 12.5 mm and a thickness of 1 mm, it offers a compact and robust solution for various optical systems. The Window's base shape is circular, and its shape is classified as a Thin Lens, further emphasizing its suitability for a wide range of applications.

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