84-239 12.0mm Dia. x 12.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 12 mm
- BFL
- 9.76 mm
- R1
- 9.42 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.74339920266441
- λ
- 1550 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
84-239 12.0mm Dia. x 12.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm
The 84-239 is a Plano-Convex spherical lens, part of the extensive catalog of optical elements offered by Edmund Optics. This lens boasts a 12.0mm diameter and a focal length of 12.0mm, making it suitable for a wide range of applications.
The lens is crafted from n-SF11 Schott, a high-index glass with excellent optical properties. The base shape is circular, and the lens features a Plano-Convex geometry, with a 1.84mm thickness at the edge and a 4mm thickness at the center. The effective focal length (EFL) is 12mm, and the radius of curvature (R1) is 9.42mm. The back focal length (BFL) is 9.76mm, and both the inner and outer radii are 0mm.
The 84-239 is coated with Edmund Optics' Las V-Coat 1550, a specialized coating designed for use with a 1550nm wavelength. This coating ensures high transmission and low reflection, making the lens ideal for laser applications.
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