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89-261 20mm Dia. x 50mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

89-261 20mm Dia. x 50mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

Type
Lens
Subtype
Spherical Lens (Convex-Convex)
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
20 mm
EFL
50 mm
BFL
48.84 mm
R1
51.08 mm
R2
-51.08 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

89-261 20mm Dia. x 50mm FL; YAG-BBAR Coated; Double-Convex Lens YAG-BBAR 500-1100nm

The 89-261 is a high-quality double-convex lens, boasting a 20mm diameter and a focal length of 50mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.

The lens is constructed from the high-grade material, n-BK7 Schott, which is known for its excellent optical properties. The geometry of the lens is meticulously designed, with a thickness of 1.52mm at the edge and 3.5mm at the center. The lens's effective focal length (EFL) is 50mm, and its back focal length (BFL) is 48.84mm, making it suitable for a wide range of optical applications.

The 89-261 lens features a YAG-BBAR coating on both the front and back surfaces, enhancing its performance within the wavelength range of 500-1100nm. This coating reduces reflection and increases transmission, thereby improving the overall efficiency and quality of the optical system in which it is used.

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