SLB-20B-30P 20.0 mm Dia. x 31.0 mm FL; Double-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 31 mm
- BFL
- 29.1 mm
- R1
- 31.14 mm
- R2
- -31.14 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-30P 20.0 mm Dia. x 31.0 mm FL; Double-Convex Lens Uncoated
The SLB-20B-30P is a high-quality double-convex lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed with a base shape of a circle, is constructed from the renowned material, n-bk7 schott, which is known for its excellent optical properties.
The lens features a diameter of 20.0 mm and a center thickness of 5.3 mm, providing a robust structure for various applications. The edge thickness is 2.0 mm, ensuring durability while maintaining a sleek profile. The effective focal length (EFL) of this lens is 31.0 mm, making it suitable for a wide range of optical systems.
The first radius of curvature (R1) is 31.14 mm, and the second radius (R2) is -31.14 mm, indicating the double-convex nature of the lens. The back focal length (BFL) is 29.1 mm, which is crucial for determining the position of the lens in an optical system.
This lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. The wavelength of 546.1 nm is provided for reference, although the lens can be used across a broader spectrum.