SLB-20-80PM 20.0 mm Dia. x 80.0 mm FL; Coated; Plano-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 80 mm
- BFL
- 77.9 mm
- R1
- 41.52 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-20-80PM 20.0 mm Dia. x 80.0 mm FL; Coated; Plano-Convex Lens 400-700nm
The SLB-20-80PM is a Plano-Convex lens, a type of spherical lens, sourced from OptoSigma. This lens has a diameter of 20.0 mm and a focal length of 80.0 mm, making it suitable for a wide range of optical applications. The lens is made from n-bk7 schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence.
The lens features a Plano-Convex geometry, meaning one side is flat (Plano) and the other side is curved (Convex). The curvature of the convex side is defined by a radius of 41.52 mm, and the lens has an edge thickness of 2.0 mm and a center thickness of 3.2 mm. The lens's effective focal length (EFL) is 80.0 mm, and the back focal length (BFL) is 77.9 mm.
The SLB-20-80PM is coated with an Opt M coating on both the front and back surfaces. This coating enhances the lens's performance in the 400-700nm wavelength range, providing improved transmission and reduced reflection. The lens is currently in stock and available for immediate purchase from the OptoSigma website.