SLSQ-20B-25N 20.0 mm Dia. x -24.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -24.7 mm
- BFL
- -25.3 mm
- R1
- -23 mm
- R2
- 23 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-25N 20.0 mm Dia. x -24.7 mm FL; Double-Concave Lens Uncoated
The SLSQ-20B-25N is a high-quality double-concave 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 wide range of optical applications.
The lens features a base shape of a circle and is constructed from fused silica, a material known for its excellent optical properties and durability. The double-concave geometry of the lens, with radii of curvature R1 (-23) and R2 (23), provides a back focal length of -25.3 and an effective focal length of -24.7.
The lens's edge thickness measures 6.6 mm, while the center thickness is 2 mm, offering a robust and stable structure. The lens is uncoated, providing a clear and unaltered view of the light passing through it.
This lens is suitable for use with a wavelength of 546.1 nm, making it a versatile option for various optical systems. The SLSQ-20B-25N is currently in stock and available for immediate purchase, as indicated by its valid web link status.