SLB-20-100N 20.0 mm Dia. x -100.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -100 mm
- BFL
- -101.3 mm
- R1
- -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-20-100N 20.0 mm Dia. x -100.0 mm FL; Plano-Concave Lens Uncoated
The SLB-20-100N is a Plano-Concave Lens, part of the Spherical Lens category, sourced from OptoSigma. This lens is uncoated and features a base shape of Circular. The lens has a diameter of 20.0 mm and a thickness edge of 3.0 mm, with a center thickness of 2.0 mm. The effective focal length (EFL) is -100.0 mm, making it a negative or diverging lens.
The lens's first radius of curvature (R1) is -51.9 mm, and the back focal length (BFL) is -101.3 mm. The lens does not have an inner radius or an outer radius, indicating it is a simple Plano-Concave lens. The lens material is n-BK7 Schott, a common and high-quality optical glass.
The lens is designed to operate at a wavelength of 546.1 nm. The shape of the lens is spherical, a common and versatile lens shape. The lens does not have any coating, which means it is uncoated. This may affect the lens's performance in certain applications, particularly those requiring high transmission or low reflectivity.
The lens's web link is valid and in stock, indicating it is readily available for purchase. This lens is suitable for various applications that require a negative lens, such as camera objectives, beam expanders, and other optical systems.