SLB-40B-90P 40.0 mm Dia. x 91.1 mm FL; Double-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 91.1 mm
- BFL
- 88.9 mm
- R1
- 93.42 mm
- R2
- -93.42 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-40B-90P 40.0 mm Dia. x 91.1 mm FL; Double-Convex Lens Uncoated
The SLB-40B-90P is a double-convex lens with a diameter of 40.0 mm and a focal length of 91.1 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is uncoated. The lens is made of n-bk7 schott, a popular material in the field due to its excellent optical properties.
The lens's geometry is characterized by its base shape, which is circular, and its spherical shape. The thickness at the edge of the lens is 2 mm, while the thickness at the center is 6.3 mm. The effective focal length (EFL) is 91.1 mm, and the radius of curvature for the first surface (R1) is 93.42 mm. The radius of curvature for the second surface (R2) is -93.42 mm, indicating a convex-convex configuration. The back focal length (BFL) is 88.9 mm.
This lens is designed to operate at a wavelength of 546.1 nm. It is important to note that the lens does not have any coating, which may affect its performance in certain applications. However, its uncoated status could also be beneficial in scenarios where coating is not desired or necessary.
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