LE1613 50.8 mm Dia. N-BK7 Positive Meniscus Lens; EFL=250mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 250 mm
- BFL
- 243.5 mm
- R1
- 82.5 mm
- R2
- 224.7 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
LE1613 50.8 mm Dia. N-BK7 Positive Meniscus Lens; EFL=250mm Uncoated
The LE1613 is a spherical lens with a convex-concave design, featuring a base shape of a circle. This lens, sourced from Thorlabs, has a diameter of 50.8 mm and a thickness at the edge of 2.9 mm, with a center thickness of 5.5 mm. The effective focal length (EFL) of this lens is 250mm, making it suitable for a variety of optical applications.
The lens is made of N-BK7, a type of glass manufactured by Schott, which is known for its excellent optical properties. The radii of curvature for this lens are R1 = 82.5 mm and R2 = 224.7 mm, contributing to its positive meniscus design. The back focal length (BFL) of this lens is 243.5 mm.
The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, this does not limit its functionality, as it can still be used effectively in various applications. The lens is designed to work with a wavelength of 587.6 nm.
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