49-482 15mm Dia. x 22.5mm 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
- 15 mm
- EFL
- 22.5 mm
- BFL
- 21.29 mm
- R1
- 34.36 mm
- R2
- -34.36 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
49-482 15mm Dia. x 22.5mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
This is a 15mm diameter, double-convex lens with a focal length of 22.5mm, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics and is currently in stock.
The lens is made from n-SF11 Schott, a high-index glass that is often used in optical systems due to its excellent Abbe number and low dispersion. This makes it ideal for use in applications where high resolution and low chromatic aberration are required.
The lens features a standard NIR I coating on both the front and back surfaces. This coating is designed to enhance the lens's performance in the NIR spectrum, specifically between 600 and 1050nm. It reduces reflection and increases transmission, improving the overall efficiency and quality of the optical system.
The geometry of the lens includes a thickness of 2.54mm at the edge and 4.2mm at the center. The effective focal length (EFL) is 22.5mm, and the back focal length (BFL) is 21.29mm. The first and second radii of curvature are 34.36mm and -34.36mm, respectively.
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