SLB-25-40NM 25.0 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 400-700nm
- 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-25-40NM 25.0 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 400-700nm
The SLB-25-40NM is a Plano-Concave Spherical Lens, sourced from the reputable vendor OptoSigma. This lens boasts a diameter of 25.0 mm and a focal length of -40.0 mm, making it ideal for applications that require concave lenses.
The lens is crafted from n-bk7 schott, a high-quality material known for its excellent optical properties. The base shape of the lens is circular, and it features a double-sided coating of opt m, which enhances its performance in the wavelength range of 400-700nm.
The geometry of the lens is meticulously designed, with an edge thickness of 6.2 mm and a center thickness of 2 mm. The lens's inner and outer radii are 0, indicating a flat surface on both sides. The back focal length (bfl) is -41.3 mm, and the effective focal length (efl) is -40 mm.
This lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website, which is provided in the item data.
