SLB-20B-150PM 20.0 mm Dia. x 150.4 mm FL; Coated; Double-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 150.4 mm
- BFL
- 149.6 mm
- R1
- 155.7 mm
- R2
- -155.7 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-150PM 20.0 mm Dia. x 150.4 mm FL; Coated; Double-Convex Lens 400-700nm
The SLB-20B-150PM is a high-quality lens offered by OptoSigma, designed for use within the wavelength range of 400-700nm. This lens is spherical in shape, featuring a double-convex design with a base shape of a circle. The lens has a diameter of 20.0 mm and a focal length of 150.4 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 geometry of the lens includes an edge thickness of 2.0 mm and a center thickness of 2.6 mm. The effective focal length (EFL) is 150.4 mm, while the back focal length (BFL) is 149.6 mm. The radii of curvature for the first and second surfaces are 155.7 mm and -155.7 mm, respectively.
The SLB-20B-150PM lens comes with anti-reflective coatings on both the front and back surfaces, specifically OptoSigma's "opt m" coating. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission and minimizing flare and ghosting.