45-172 50mm Dia. x 250mm FL; MgF2 Coated; Double-Convex Lens MgF2 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 250 mm
- BFL
- 248.37 mm
- R1
- 257.57 mm
- R2
- -257.57 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
45-172 50mm Dia. x 250mm FL; MgF2 Coated; Double-Convex Lens MgF2 400-700nm
This is a 50mm diameter, double-convex lens with a focal length of 250mm, sourced from the renowned optical components vendor, Edmund Optics. The lens is made from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties and durability.
The lens features a front and back coating of MgF2, which is standard for Edmund Optics. This coating enhances the lens's performance by reducing reflection and increasing transmission, particularly within the wavelength range of 400-700nm. The lens's geometry includes a thickness of 2.5mm at the edge and 4.93mm at the center, with an effective focal length (EFL) of 250mm.
The lens's first radius of curvature (R1) is 257.57mm, while the second radius (R2) is -257.57mm, indicating its double-convex shape. The back focal length (BFL) is 248.37mm, and both the inner and outer radii are 0mm.
This lens is a versatile and reliable choice for various optical applications, thanks to its high-quality materials, precise geometry, and advanced coating. It is currently in stock, as indicated by its valid weblink status.