SLB-25-100NIR2 25.0 mm Dia. x -100.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -100 mm
- BFL
- -101.3 mm
- R1
- -51.9 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-25-100NIR2 25.0 mm Dia. x -100.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
The SLB-25-100NIR2 is a Plano-Concave Spherical Lens, part of OptoSigma's extensive catalog of optical elements. This lens, with a diameter of 25.0 mm, is designed for use in the near-infrared spectrum, specifically between 750 and 1550 nanometers.
The lens's geometry is characterized by its thickness at the edge, which is 3.5 mm, and its center thickness, which is 2 mm. The effective focal length (EFL) is -100.0 mm, indicating a concave shape. The first radius of curvature (R1) is -51.9 mm, and the back focal length (BFL) is -101.3 mm. The lens does not have an inner or outer radius.
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 coated with Opt IR2, a coating specifically designed for the near-infrared spectrum, enhancing its performance in this range.
The lens's web link is valid and indicates that it is in stock, making it readily available for immediate use. This lens is an excellent choice for applications that require a concave lens in the near-infrared spectrum.