63-646 20mm Dia. x 20mm 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
- 20 mm
- EFL
- 20 mm
- BFL
- 18.55 mm
- R1
- 30.25 mm
- R2
- -30.25 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
63-646 20mm Dia. x 20mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm
The 63-646 is a high-quality double-convex lens, designed and manufactured by Edmund Optics. This lens boasts a 20mm diameter and a focal length of 20mm, making it a versatile choice for a variety of optical applications. The lens is constructed from n-SF11 Schott, a material known for its excellent optical properties.
The lens features a double-convex geometry, with radii of curvature of 30.25mm for the first surface and -30.25mm for the second. This geometry, combined with the lens's material, results in a high-performance optical element with a back focal length of 18.55mm and an effective focal length of 20mm.
The 63-646 is coated with Edmund Optics' NIR I standard curve coating on both the front and back surfaces. This coating is specifically designed for use in the near-infrared region, providing excellent transmission from 600 to 1050nm. This makes the lens an ideal choice for applications such as night vision, thermal imaging, and spectroscopy.