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89-025 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 785nm

89-025 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 785nm

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

Properties

Shape
Circular
Diameter
20 mm
EFL
50 mm
BFL
47.87 mm
R1
25.84 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5110795649082278
λ
785 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

89-025 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 785nm

The 89-025 is a Plano-Convex spherical lens, characterized by its circular base shape and a diameter of 20.0mm. This lens is designed with a long focal length of 50.0mm, making it suitable for a variety of applications that require precise focusing. The lens has a thickness of 1.22mm at the edge and 3.23mm at the center, providing a robust structure while maintaining a sleek profile.

The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. This material is particularly suitable for applications in the near-infrared region, such as laser systems and optical communication. The lens's design includes an inner radius of 0mm and an outer radius of 0mm, ensuring a smooth light path and minimal distortion.

The 89-025 is coated with Edmund Optics Laser V-Coat 785nm on both the front and back surfaces. This coating enhances the lens's performance in the 785nm wavelength range, improving transmission and reducing reflection. The coating also provides excellent environmental resistance, ensuring the lens maintains its performance even in challenging conditions.

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