SLB-50.8B-200N 50.8 mm Dia. x -199.5 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -199.5 mm
- BFL
- -200.5 mm
- R1
- -207.6 mm
- R2
- 207.6 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-50.8B-200N 50.8 mm Dia. x -199.5 mm FL; Double-Concave Lens Uncoated
The SLB-50.8B-200N is a high-quality double-concave lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a base shape of a circle, is designed for use in a wide range of optical applications.
The lens has a diameter of 50.8 mm and a thickness at the edge of 6.1 mm, ensuring durability and stability. The center thickness is 3 mm, providing a balanced optical path. The effective focal length (EFL) of this lens is -199.5 mm, indicating its double-concave nature, which is further emphasized by its radii of curvature, R1 and R2, which are -207.6 mm and 207.6 mm respectively. The back focal length (BFL) is -200.5 mm.
The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and chemical durability. The wavelength for this lens is 546.1 nm. The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.
This lens is currently in stock and can be purchased directly from the OptoSigma website using the provided weblink. With its robust design, high-quality material, and versatile specifications, the SLB-50.8B-200N is an excellent choice for various optical applications.