SLB-50B-220PM 50.0 mm Dia. x 220.9 mm FL; Coated; Double-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 220.9 mm
- BFL
- 219.1 mm
- R1
- 228.36 mm
- R2
- -228.36 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-50B-220PM 50.0 mm Dia. x 220.9 mm FL; Coated; Double-Convex Lens 400-700nm
The SLB-50B-220PM is a high-quality lens from OptoSigma, designed for use in the 400-700nm wavelength range. This lens is a spherical, biconvex design, made from n-bk7 Schott glass, a material known for its excellent optical properties.
The lens has a diameter of 50.0 mm and a focal length of 220.9 mm, making it a versatile choice for a wide range of optical applications. The edge thickness of the lens is 3.0 mm, while the center thickness is 5.7 mm, providing a robust and durable structure.
The SLB-50B-220PM is coated with OptoM, a broadband anti-reflection coating that enhances its transmission capabilities. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance.
The lens is designed to be used in a circular geometry, with no inner or outer radius specified. The effective focal length (EFL) is 220.9 mm, and the back focal length (BFL) is 219.1 mm.
