SLB-50-250N 50.0 mm Dia. x -250.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- -250 mm
- BFL
- -252 mm
- R1
- -129.75 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-50-250N 50.0 mm Dia. x -250.0 mm FL; Plano-Concave Lens Uncoated
The SLB-50-250N is a Plano-Concave Lens, part of the Spherical Lens category, sourced from OptoSigma. This lens, with a base shape of Circular, is designed for use in a wide range of optical applications.
The lens has a diameter of 50.0 mm and a thickness at the edge of 5.4 mm, while the center thickness is 3.0 mm. The Effective Focal Length (EFL) is -250.0 mm, indicating a diverging lens. The first radius of curvature (R1) is -129.75 mm, and the back focal length (BFL) is -252 mm. The lens does not have any inner or outer radius, indicating a simple plano-concave design.
The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. The lens is uncoated, which means it does not have any anti-reflective or other coatings. This may result in higher reflective losses and a lower transmission compared to coated lenses.
The lens is designed for use at a wavelength of 546.1 nm. It is important to note that the performance of the lens can vary depending on the wavelength of the light used.
