SLSQ-20B-90P 20.0 mm Dia. x 90.6 mm FL; Double-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 90.6 mm
- BFL
- 89.4 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-20B-90P 20.0 mm Dia. x 90.6 mm FL; Double-Convex Lens Uncoated
The SLSQ-20B-90P is a high-quality double-convex lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a diameter of 20.0 mm, is designed for use in a variety of optical systems, offering a focal length of 90.6 mm.
The lens is made from fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The base shape of the lens is circular, and it features a spherical geometry with a center thickness of 3.2 mm and an edge thickness of 2 mm. The radii of curvature for the two surfaces are 82.8 mm and -82.8 mm, respectively, resulting in a back focal length of 89.4 mm.
The lens is uncoated, which means it does not have any anti-reflective coatings. This may be suitable for applications where such coatings are not required or desirable. However, users should be aware that uncoated lenses can exhibit higher levels of reflection, which may affect the performance of the optical system.
The SLSQ-20B-90P is designed for use at a wavelength of 546.1 nm. It is currently in stock and available for purchase through the OptoSigma website. The lens is a versatile and reliable choice for a wide range of optical applications, offering excellent optical performance and robust construction.
