SLB-25-40N 25.0 mm Dia. x -40.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -40 mm
- BFL
- -41.3 mm
- R1
- -20.76 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-25-40N 25.0 mm Dia. x -40.0 mm FL; Plano-Concave Lens Uncoated
The SLB-25-40N 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 25.0 mm and a thickness at the edge of 6.2 mm. The thickness at the center is 2 mm.
The effective focal length (EFL) of this lens is -40.0 mm, indicating that it is a diverging lens, causing light rays to spread out after passing through it. The first radius of curvature (R1) is -20.76 mm, and the back focal length (BFL) is -41.3 mm. The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and high Abbe number.
The lens is designed to operate at a wavelength of 546.1 nm. The inner and outer radii are 0 mm, indicating that the lens is a simple plano-concave design. This lens is in stock and available for immediate purchase. For more information, please refer to the vendor's website.
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