SLSQ-25-90N 25.0 mm Dia. x -90.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -90 mm
- BFL
- -91.4 mm
- R1
- -41.4 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-25-90N 25.0 mm Dia. x -90.0 mm FL; Plano-Concave Lens Uncoated
The SLSQ-25-90N 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 excellent thermal stability and chemical resistance.
The lens has a diameter of 25.0 mm and a thickness at the edge of 3.9 mm. The center thickness is 2 mm. The effective focal length (EFL) of this lens is -90.0 mm, indicating that it is a diverging lens. The radius of curvature (R1) is -41.4 mm, and the back focal length (BFL) is -91.4 mm. The lens does not have any inner or outer radius.
This lens is designed to operate at a wavelength of 546.1 nm. The lens is not coated, which means it does not have any anti-reflective or other surface treatments. This may result in higher reflective losses and a lower overall transmission compared to coated lenses. However, uncoated lenses are often preferred in applications where the coating might introduce unwanted optical effects or where cost is a significant factor.
The lens is currently in stock and available for purchase through the vendor's website.