SLB-20-120P 20.0 mm Dia. x 120.0 mm FL; Plano-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 120 mm
- BFL
- 118.2 mm
- R1
- 62.28 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-20-120P 20.0 mm Dia. x 120.0 mm FL; Plano-Convex Lens Uncoated
The SLB-20-120P is a Plano-Convex lens with a diameter of 20.0 mm and a focal length of 120.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence.
The lens geometry includes a thickness edge of 2.0 mm and a thickness center of 2.8 mm. The effective focal length (EFL) is 120.0 mm, and the radius of curvature (R1) is 62.28 mm. The back focal length (BFL) is 118.2 mm, and both the inner and outer radii are 0 mm.
The SLB-20-120P is uncoated, which means it does not have any anti-reflective coatings. This can lead to unwanted reflections, but it also means that the lens is more cost-effective and versatile, as it can be used with a wide range of wavelengths without the risk of coating damage.
The lens is designed for use at a wavelength of 546.1 nm, making it suitable for a wide range of applications. It is spherical in shape, which is a common and versatile lens shape. The lens is circular, which is also a common shape for optical elements.
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