38-480-INK 35.0mm Dia. x 70.0mm 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
- 35 mm
- EFL
- 70 mm
- BFL
- 66.04 mm
- R1
- 36.18 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
38-480-INK 35.0mm Dia. x 70.0mm FL; VIS-EXT; Inked; Plano-Convex Lens VIS-EXT 350-700nm
The 38-480-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a base shape of a circle, has a diameter of 35.0mm and a thickness at the edge of 1.49mm. The thickness at the center is 6.0mm, and it has an effective focal length (EFL) of 70.0mm. The lens's front radius of curvature (R1) is 36.18mm, and the back focal length (BFL) is 66.04mm.
This lens is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The lens is coated with EDM VIS EXT on both the front and back surfaces, a coating designed for use in the visible spectrum, specifically between 350-700nm. This coating enhances the lens's performance by reducing surface reflections and increasing transmission.
The lens's geometry, including its inner and outer radii, is not specified, indicating that these dimensions are either not applicable or not provided. The wavelength of 587.6nm suggests that this lens is designed for use with the sodium D-line, a common reference wavelength in optical systems.
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