49-508 50mm Dia. x 50mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 50 mm
- BFL
- 45.3 mm
- R1
- 74.78 mm
- R2
- -74.78 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
49-508 50mm Dia. x 50mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
This is a 50mm diameter, double-convex lens with a 50mm focal length, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics and is currently in stock. It is made from n-SF11 Schott material, a popular choice for its high refractive index and low dispersion.
The lens features a standard NIR I coating on both the front and back surfaces, which enhances its performance in the 600-1050nm wavelength range. This coating is part of Edmund Optics' NIR I series, known for its broadband anti-reflection characteristics.
The geometry of the lens includes a thickness of 7.39mm at the edge and 16mm at the center. The effective focal length (EFL) is 50mm, and the back focal length (BFL) is 45.3mm. The first and second radii of curvature are 74.78mm and -74.78mm, respectively. The lens has no inner or outer radius specified, indicating it is a simple, double-convex design.
