SLB-40-50N 40.0 mm Dia. x -50.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -50 mm
- BFL
- -51.3 mm
- R1
- -25.95 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-40-50N 40.0 mm Dia. x -50.0 mm FL; Plano-Concave Lens Uncoated
The SLB-40-50N is a Plano-Concave Lens, a type of spherical lens, sourced from OptoSigma. This lens has a base shape of a circle and is uncoated. The lens is designed with a diameter of 40.0 mm and a focal length of -50.0 mm, making it a negative or diverging lens.
The lens's geometry includes an edge thickness of 11.4 mm and a center thickness of 2 mm. The radius of curvature (R1) is -25.95 mm, and the back focal length (BFL) is -51.3 mm. The lens is made of n-BK7 Schott material, a common type of glass used in optical applications due to its excellent optical properties.
The lens is designed to operate at a wavelength of 546.1 nm. The lack of coating on the lens suggests that it is intended for use in applications where coating is not necessary or desirable. This could include applications where the lens is used in a protective role, or where the coating could introduce unwanted artifacts.
The lens is currently in stock and available for purchase through the OptoSigma website.
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