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210-0203M 25.0 mm Dia. N-BK7 Flat Round Window; t=3 mm Uncoated

210-0203M 25.0 mm Dia. N-BK7 Flat Round Window; t=3 mm Uncoated

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

Properties

Shape
Circular
Diameter
25 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5150823520020043
λ
633 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

210-0203M 25.0 mm Dia. N-BK7 Flat Round Window; t=3 mm Uncoated

The 210-0203M is a Flat Round Window, offered by EKSMA Optics, with a diameter of 25.0 mm and a thickness of 3 mm. This window is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and high damage threshold. The window is uncoated, meaning it does not have any anti-reflective or other coatings applied to its surfaces.

The window's geometry is defined by its diameter and thickness. With a diameter of 25.0 mm, it is suitable for a wide range of applications where a small, flat window is required. The thickness of 3 mm provides sufficient structural integrity while minimizing optical distortion.

This window is designed for use at a wavelength of 633 nm, making it suitable for applications that use red lasers, such as alignment, barcode scanning, and spectroscopy. The window's shape is that of a thin lens, which means it has been ground and polished to a precise curvature, although in this case, the curvature is so slight as to be virtually unnoticeable.

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