SLSQ-50.8B-100N 50.8 mm Dia. x -99.5 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -99.5 mm
- BFL
- -100.5 mm
- R1
- -92 mm
- R2
- 92 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-100N 50.8 mm Dia. x -99.5 mm FL; Double-Concave Lens Uncoated
OptoSigma's SLSQ-50.8B-100N is a high-quality, double-concave spherical lens designed for use in a wide range of optical applications. This lens, which is uncoated, boasts a diameter of 50.8 mm and a focal length of -99.5 mm, making it a versatile choice for many setups.
The lens is made from fused silica, a material known for its excellent optical properties, including a low coefficient of thermal expansion and high transmission across a wide spectrum. This particular lens is identified by the material ID "fused sil mal-1965", indicating its specific composition.
The geometry of the lens is defined by its base shape, which is circular, and its double-concave design. The first radius of curvature (r1) is -92, while the second radius (r2) is 92. The edge thickness of the lens is 10.2 mm, and the center thickness is 3 mm. The back focal length (bfl) is -100.5 mm, and the effective focal length (efl) is -99.5 mm.
The lens is designed to operate at a wavelength of 546.1 nm. It does not come with any coating, offering a bare, uncoated surface. This can be beneficial in certain applications where a coating may introduce unwanted reflections or alter the optical properties of the lens.
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