38-471-INK 18.0mm Dia. x 50.0mm FL; VIS-EXT; Inked; Plano-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 50 mm
- BFL
- 48.09 mm
- R1
- 25.84 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
38-471-INK 18.0mm Dia. x 50.0mm FL; VIS-EXT; Inked; Plano-Convex Lens VIS-EXT 350-700nm
The 38-471-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 18.0mm, is designed for use in the visible light spectrum, specifically between 350-700nm, making it suitable for a wide range of optical applications.
The lens features a front and back coating of EDM VIS EXT, which is a broadband anti-reflection coating designed for use in the visible spectrum. This coating helps to reduce surface reflections, thereby increasing the amount of light transmitted through the lens.
The lens has a thickness of 1.28mm at the edge and 2.9mm at the center. The effective focal length (EFL) of the lens is 50.0mm, and the back focal length (BFL) is 48.09mm. The radius of curvature for the first surface (R1) is 25.84mm.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The lens is 'inked', which is a process where a dye is applied to the edge of the lens to indicate that it has been centered and edged.
