63-618 20mm Dia. x 80mm FL; VIS 0deg Coated; Double-Convex Lens VIS 0deg 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 80 mm
- BFL
- 78.67 mm
- R1
- 82 mm
- R2
- -82 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
20mm Diameter x 80mm FL Double-Convex Lens with VIS 0° Coating from Edmund Optics
This item is a 20mm diameter x 80mm focal length (FL) double-convex lens, featuring a visually transparent design with a standard VIS 0° coating. The lens is sourced from the reputable optical components vendor, Edmund Optics.
The lens's base shape is circular, and its geometry includes a 2.78mm thickness at the edge, a 4mm thickness at the center, and an effective focal length (EFL) of 80mm. The first radius of curvature (R1) is 82mm, while the second radius of curvature (R2) is -82mm, and the back focal length (BFL) is 78.67mm. The lens's inner and outer radii are both 0mm.
The lens is made of n-BK7 Schott material, a popular choice for its high refractive index and low dispersion. The wavelength for this lens is 587.6nm. The lens features a standard coating on both the front and back surfaces, specifically the EDM VIS-0 STD CURVE coating, designed to enhance transmission and reduce surface reflections in the visible spectrum.
This double-convex lens is a spherical lens, meaning it has a spherical surface, which is the simplest type of lens. It is in stock and available for immediate purchase through the provided weblink.
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