LE1418-C 50.8 mm Dia. N-BK7 Positive Meniscus Lens; EFL=150mm 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 150 mm
- BFL
- 141.7 mm
- R1
- 47.9 mm
- R2
- 119.3 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
LE1418-C 50.8 mm Dia. N-BK7 Positive Meniscus Lens; EFL=150mm 1050-1700nm
The LE1418-C is a spherical lens with a base shape of a circle, sourced from the reputable vendor Thorlabs. This lens is a positive meniscus type, featuring a diameter of 50.8 mm and a thickness at the edge of 2.7 mm. The center thickness is 7.3 mm, and it has an effective focal length (EFL) of 150 mm. The lens is designed for use within the wavelength range of 1050-1700nm, with a central wavelength of 587.6nm.
The lens is made from N-BK7 Schott glass, a popular choice due to its excellent optical properties and wide transmission range. The front and back of the lens are coated with THo C BBAR, a coating that enhances the lens' performance by reducing reflection and increasing transmission.
The lens' geometry includes an inner radius of 0 and an outer radius of 0, with a back focal length (BFL) of 141.7 mm. The radii of curvature for the first and second surfaces are 47.9 mm and 119.3 mm, respectively.
