63-678 20mm Dia. x 20mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- 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
63-678 20mm Dia. x 20mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 63-678 is a high-quality double-convex lens, boasting a 20mm diameter and a focal length of 20mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase on their official website. The lens is currently in stock, ready for immediate use in your optical system.
The lens is constructed from n-SF11 Schott, a material well-known for its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry. The radius of curvature for the first surface is 30.25mm, while for the second surface it is -30.25mm. The lens has an effective focal length (EFL) of 20mm, a back focal length (BFL) of 18.55mm, and a thickness at the center of 5mm. The edge thickness of the lens is 1.6mm.
The lens is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating enhances the lens's performance in the visible to near-infrared spectrum, specifically between 400nm and 1000nm. This makes the lens ideal for a wide range of applications, including but not limited to, spectroscopy, biomedical imaging, and machine vision.
