63-835 18mm Dia. x 20mm FL; VIS-NIR Coated; UV Double-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 20 mm
- BFL
- 17.18 mm
- R1
- 17.05 mm
- R2
- -17.05 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458462342053241
- λ
- 587.6 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
63-835 18mm Dia. x 20mm FL; VIS-NIR Coated; UV Double-Convex Lens VIS-NIR 400-1000nm
This 18mm diameter by 20mm focal length (FL) double-convex lens, sourced from Edmund Optics, is designed for use within the visible to near-infrared (VIS-NIR) spectrum, spanning 400-1000nm. The lens is made of fused silica (mal-1965) and features a UV-grade double-convex geometry, with radii of curvature of 17.05mm for the first surface and -17.05mm for the second surface.
The lens has a center thickness of 7.64mm and an edge thickness of 2.5mm, with a back focal length (BFL) of 17.18mm. The effective focal length (EFL) is 20mm. Both the front and back surfaces of the lens are coated with the EDM VIS-NIR 0SP-2002000 coating, which is optimized for the VIS-NIR range.
This lens is ideal for applications that require a high-quality, broadband optical component within the VIS-NIR spectrum. Its double-convex geometry provides excellent imaging performance, making it suitable for various applications, including optical systems, beam shaping, and imaging.
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