SLB-10B-50NIR2 10.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 10 mm
- EFL
- -49.7 mm
- BFL
- -50.3 mm
- R1
- -51.9 mm
- R2
- 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-10B-50NIR2 10.0 mm Dia. x -49.7 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-10B-50NIR2 is a high-quality double-concave lens, designed and manufactured by OptoSigma. This lens, with a diameter of 10.0 mm, is specifically engineered for use within the wavelength range of 750-1550nm, making it ideal for near-infrared applications.
The lens features a base shape of a circle, with a center thickness of 2.0 mm and an edge thickness of 2.5 mm. The effective focal length (EFL) is -49.7 mm, indicating its double-concave nature. The first radius of curvature (R1) is -51.9 mm, while the second radius (R2) is 51.9 mm, further emphasizing its concave-concave geometry. The back focal length (BFL) is -50.3 mm.
The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and chemical durability. The lens is coated with Opt IR2 on both the front and back surfaces, enhancing its performance within the specified wavelength range.