SLB-20-60NM 20.0 mm Dia. x -60.0 mm FL; Coated; Plano-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -60 mm
- BFL
- -61.3 mm
- R1
- -31.14 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-20-60NM 20.0 mm Dia. x -60.0 mm FL; Coated; Plano-Concave Lens 400-700nm
The SLB-20-60NM is a plano-concave lens with a diameter of 20.0 mm and a focal length of -60.0 mm, specifically designed for use in the wavelength range of 400-700nm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry, and is currently in stock with valid weblinks provided for easy reference.
The lens is made of n-bk7 schott, a popular material known for its excellent optical properties. It features a spherical shape, with a front coating of opt m and a back coating of opt m, enhancing its performance and durability. The geometry of the lens includes an inner radius of 0 and an outer radius of 0, with a thickness edge of 3.6 and a thickness center of 2.
The SLB-20-60NM has an effective focal length (EFL) of -60.3, a radius of curvature (R1) of -31.14, and a back focal length (BFL) of -61.3. The lens is circular in base shape, making it suitable for a wide range of applications.
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