SLB-20-40PM 20.0 mm Dia. x 40.0 mm FL; Coated; Plano-Convex Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 40 mm
- BFL
- 37 mm
- R1
- 20.76 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-20-40PM 20.0 mm Dia. x 40.0 mm FL; Coated; Plano-Convex Lens 400-700nm
The SLB-20-40PM 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 40.0 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 transmittance and low auto-fluorescence.
The lens geometry includes an edge thickness of 2.0 mm and a center thickness of 4.6 mm. The effective focal length (EFL) is 40.0 mm, and the radius of curvature (R1) is 20.76 mm. The back focal length (BFL) is 37.0 mm, and both the inner and outer radii are 0 mm.
The SLB-20-40PM is coated with opt m on both the front and back surfaces, enhancing its performance in the 400-700nm wavelength range. This coating improves the lens's durability and resistance to environmental factors, ensuring reliable and consistent performance.