SLB-20-30NM 20.0 mm Dia. x -30.0 mm FL; Coated; Plano-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -30 mm
- BFL
- -31.3 mm
- R1
- -15.57 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-20-30NM 20.0 mm Dia. x -30.0 mm FL; Coated; Plano-Concave Lens 400-700nm
OptoSigma offers the SLB-20-30NM, a Plano-Concave Spherical Lens designed with a 20.0 mm diameter and a focal length of -30.0 mm. This lens is specifically coated for use within the wavelength range of 400-700nm, making it suitable for various applications within the visible light spectrum.
The lens features a base shape of a circle and is constructed from the material n-bk7 schott. The geometry of the lens includes an edge thickness of 5.6 mm and a center thickness of 2 mm. The inner and outer radii are both 0 mm, and the back focal length is -31.3 mm.
The front and back surfaces of the lens are coated with an Opt M coating, enhancing its performance and durability. This lens is currently in stock and available for purchase through the OptoSigma website.
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