SLSQ-25.4B-90N 25.4 mm Dia. x -89.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -89.7 mm
- BFL
- -90.4 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-25.4B-90N 25.4 mm Dia. x -89.7 mm FL; Double-Concave Lens Uncoated
OptoSigma's SLSQ-25.4B-90N is a fused silica biconcave lens, uncoated and designed for use in various optical applications. The lens boasts a diameter of 25.4 mm and a center thickness of 2 mm, with an edge thickness of 4 mm. The lens's design includes a double-concave shape, with radii of curvature of -82.8 mm and 82.8 mm for the first and second surfaces, respectively.
The lens' effective focal length (EFL) is -89.7 mm, making it suitable for applications requiring a negative lens. The back focal length (BFL) is -90.4 mm, and the lens has no inner or outer radius specified, indicating a uniform curvature throughout.
This lens is made of fused silica, a material with a high damage threshold, low autofluorescence, and excellent transmission in the ultraviolet, visible, and near-infrared spectral regions. The lens is uncoated, which may be suitable for applications where anti-reflective coatings are not required or preferred.
The lens is currently in stock and available for purchase through the OptoSigma website. For more information, users can refer to the provided weblink or contact OptoSigma directly.
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