SLSQ-20-40N 20.0 mm Dia. x -40.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -40 mm
- BFL
- -41.4 mm
- R1
- -18.4 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.460077010624967
- λ
- 546.1 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
SLSQ-20-40N 20.0 mm Dia. x -40.0 mm FL; Plano-Concave Lens Uncoated
The SLSQ-20-40N is a Plano-Concave Lens, a type of spherical lens, sourced from OptoSigma. This lens is designed with a base shape of a circle and is uncoated. The lens is fabricated from fused silica, a material known for its high transparency and resistance to thermal shock.
The lens has a diameter of 20.0 mm and a thickness at the edge of 5.0 mm. The center thickness is 2.0 mm. The effective focal length (EFL) of this lens is -40.0 mm, indicating that it is a diverging lens. The radius of curvature (R1) is -18.4 mm, and the back focal length (BFL) is -41.4 mm. The lens does not have an inner or outer radius.
The lens is designed to operate at a wavelength of 546.1 nm. It is important to note that the lens does not come with any coating, which may affect its performance in certain applications.
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