SLB-50B-50NIR2 50.0 mm Dia. x -49.5 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- -49.5 mm
- BFL
- -50.5 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-50B-50NIR2 50.0 mm Dia. x -49.5 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-50B-50NIR2 is a high-quality double-concave lens, designed and manufactured by OptoSigma. This lens, with a diameter of 50.0 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 3mm and an edge thickness of 15.8mm. The effective focal length (EFL) is -49.5mm, and the back focal length (BFL) is -50.5mm. The radii of curvature for the first and second surfaces are -51.9mm and 51.9mm, respectively. The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties.
The SLB-50B-50NIR2 is coated with Opt IR2, a proprietary coating developed by OptoSigma, on both the front and back surfaces. This coating enhances the lens's performance in the near-infrared spectrum, reducing surface reflections and increasing transmission.
This lens is currently in stock and available for immediate purchase. For more information, including pricing and technical specifications, please refer to the vendor's website using the provided weblink.
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