89-059 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
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)
- 1.5006520430195947
- λ
- 1550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-059 20.0mm Dia. x 50.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm
The 89-059 is a high-quality Plano-Convex spherical lens, designed and manufactured by Edmund Optics. This lens boasts a 20.0mm diameter and a 50.0mm focal length, making it suitable for a wide range of optical applications.
The lens is crafted from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The base shape is circular, contributing to its robust design and wide range of uses.
The geometry of the lens is meticulously designed, with a thickness of 1.22mm at the edge and 3.23mm at the center. The effective focal length (EFL) is 50mm, and the radius of curvature (R1) is 25.84mm. The back focal length (BFL) is 47.87mm, and both the inner and outer radii are 0mm.
The 89-059 is coated with Edmund Optics' Las V-Coat 1550, a high-performance coating specifically designed for use with a 1550nm wavelength. This coating ensures optimal performance and durability, making the lens an excellent choice for laser applications.
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