SLB-50.8B-250NM 50.8 mm Dia. x -249.5 mm FL; Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -249.5 mm
- BFL
- -250.5 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-50.8B-250NM 50.8 mm Dia. x -249.5 mm FL; Coated; Double-Concave Lens 400-700nm
The SLB-50.8B-250NM is a high-quality double-concave lens, boasting a diameter of 50.8 mm and a focal length of -249.5 mm. This lens is sourced from OptoSigma, a renowned vendor known for its precision optical components.
The lens is crafted from n-bk7 schott, a material widely recognized for its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry, with an inner radius of 0 and an outer radius of 0. The lens has a thickness edge of 5.5 mm and a thickness center of 3 mm, providing robustness and durability.
The SLB-50.8B-250NM is coated with opt m on both the front and back, enhancing its performance in the 400-700nm wavelength range. This coating ensures optimal light transmission and reduces unwanted reflections, making it suitable for a wide range of applications.
