SLB-20-90NIR1 20.0 mm Dia. x -90.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -90 mm
- BFL
- -91.3 mm
- R1
- -46.71 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-20-90NIR1 20.0 mm Dia. x -90.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
The SLB-20-90NIR1 is a Plano-Concave Spherical Lens, sourced from OptoSigma, with a diameter of 20.0 mm and a focal length of -90.0 mm. This lens is designed for use within the wavelength range of 633-1064nm, making it suitable for near-infrared (NIR) applications.
The lens is fabricated from n-BK7 Schott, a widely used optical glass due to its excellent optical properties and high transmittance in the visible and near-infrared regions. The lens has a thickness of 3.1 mm at the edge and 2.0 mm at the center, with an effective focal length (EFL) of -90.0 mm. The front and back surfaces of the lens are coated with Opt IR1, a coating specifically designed for the 633-1064nm wavelength range, enhancing its performance in NIR applications.
The lens's geometry includes an inner radius of 0 mm and an outer radius of 0 mm, indicating a simple, non-tapered design. The base shape is circular, contributing to its wide range of potential applications.
The lens's data is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website through the provided weblink.