SLSQ-50.8B-150N 50.8 mm Dia. x -149.5 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -149.5 mm
- BFL
- -150.5 mm
- R1
- -138 mm
- R2
- 138 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-50.8B-150N 50.8 mm Dia. x -149.5 mm FL; Double-Concave Lens Uncoated
The SLSQ-50.8B-150N is a high-quality double-concave lens offered by OptoSigma, a renowned vendor in the optical industry. This lens, with a diameter of 50.8 mm, is designed for use in a variety of optical systems that require concave-concave lenses.
The lens is made from fused silica, a material known for its excellent optical properties, including high transparency and resistance to thermal shock. The material ID "fused sil mal-1965" indicates that this lens is made from a specific type of fused silica that meets the requirements of the MIL-F-18797 standard.
The SLSQ-50.8B-150N has a center thickness of 3 mm and an edge thickness of 7.7 mm, providing a robust structure while maintaining a low profile. The effective focal length (EFL) of this lens is -149.5 mm, making it suitable for use in systems that require strong negative lenses.
The lens features a double-concave geometry with radii of curvature of -138 mm and 138 mm for the first and second surfaces, respectively. This geometry results in a back focal length (BFL) of -150.5 mm. The lens has no coating, which means it is uncoated. However, it can be customized with various coatings upon request to meet specific application requirements.