SLB-50B-250PM 50.0 mm Dia. x 251.0 mm FL; Coated; Double-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 251 mm
- BFL
- 249.1 mm
- R1
- 259.5 mm
- R2
- -259.5 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-250PM 50.0 mm Dia. x 251.0 mm FL; Coated; Double-Convex Lens 400-700nm
The SLB-50B-250PM is a high-quality lens offered by OptoSigma, designed for use within the wavelength range of 400-700nm. This lens boasts a 50.0 mm diameter and a focal length of 251.0 mm, making it suitable for a variety of optical applications.
The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry with specifications including an edge thickness of 3 mm and a center thickness of 5.4 mm. The effective focal length (EFL) is 251 mm, while the back focal length (BFL) is 249.1 mm.
The SLB-50B-250PM is coated with Opt M on both the front and back surfaces, enhancing its performance and durability. This coating helps to reduce reflection and increase transmission, making the lens more efficient in transmitting light.
