SLB-20B-50PM 20.0 mm Dia. x 50.7 mm FL; Coated; Double-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 50.7 mm
- BFL
- 49.3 mm
- R1
- 51.9 mm
- R2
- -51.9 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-20B-50PM 20.0 mm Dia. x 50.7 mm FL; Coated; Double-Convex Lens 400-700nm
The SLB-20B-50PM is a high-quality double-convex lens, boasting a diameter of 20.0 mm and a focal length of 50.7 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical elements.
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 radii of curvature of 51.9 mm and -51.9 mm for the first and second surfaces, respectively.
The lens has a thickness of 2.0 mm at the edge and 3.9 mm at the center. The effective focal length (EFL) is 50.7 mm, and the back focal length (BFL) is 49.3 mm. The lens is coated with opt m on both the front and back surfaces, enhancing its performance in the 400-700nm wavelength range.
This lens is currently in stock and available for immediate purchase. For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.