SLSQ-25.4B-30N 25.4 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -29.7 mm
- BFL
- -30.4 mm
- R1
- -27.6 mm
- R2
- 27.6 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-25.4B-30N 25.4 mm Dia. x -29.7 mm FL; Double-Concave Lens Uncoated
OptoSigma's SLSQ-25.4B-30N is a fused silica biconcave lens, uncoated and designed for use in a wide range of optical applications. This lens features a base shape of a circle and is classified as a spherical lens with a concave-concave configuration.
The lens has a diameter of 25.4 mm and a thickness at the edge of 8.2 mm. The center thickness is 2 mm, providing a robust structure while maintaining a sleek profile. The effective focal length (EFL) of this lens is -29.7 mm, making it suitable for applications requiring negative focal lengths.
The SLSQ-25.4B-30N's first radius of curvature (R1) is -27.6 mm, while its second radius of curvature (R2) is 27.6 mm. These radii values contribute to the lens's double-concave nature. The back focal length (BFL) is -30.4 mm, which is crucial when considering the overall optical layout in a system.
This lens is made of fused silica material with the ID and OD both being 0 mm. The wavelength for this lens is 546.1 nm. The lens does not have any coating, which makes it suitable for applications where coating is not required or preferred.