SLSQ-25B-90N 25.0 mm Dia. x -89.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -89.7 mm
- BFL
- -90.3 mm
- R1
- -82.8 mm
- R2
- 82.8 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-25B-90N 25.0 mm Dia. x -89.7 mm FL; Double-Concave Lens Uncoated
The SLSQ-25B-90N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens is designed with a spherical shape, featuring a base shape of a circle, and is constructed from fused silica material, specifically identified as fused sil mal-1965.
The lens has a diameter of 25.0 mm and a thickness at the edge of 3.9 mm. The center thickness is 2.0 mm, providing a robust structure while maintaining a sleek profile. The effective focal length (EFL) of this lens is -89.7 mm, making it suitable for applications that require strong negative magnification.
The first radius of curvature (R1) is -82.8 mm, and the second radius of curvature (R2) is 82.8 mm. These radii, combined with the EFL, contribute to the lens's double-concave design. The back focal length (BFL) is -90.3 mm, which is crucial to consider when designing optical systems.
This lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. The lens is currently in stock and can be purchased directly from the vendor through the provided weblink.
