38-470 18.0mm Dia. x 30.0mm FL; VIS-EXT Coated; Plano-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 30 mm
- BFL
- 27.1 mm
- R1
- 15.51 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
38-470 18.0mm Dia. x 30.0mm FL; VIS-EXT Coated; Plano-Convex Lens VIS-EXT 350-700nm
The 38-470 is a Plano-Convex Spherical Lens, sourced from the renowned optical components vendor, Edmund Optics. This lens boasts an 18.0mm diameter and a 30.0mm focal length, making it suitable for a wide range of optical applications.
The lens is crafted from the high-quality material, n-BK7 Schott, a borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This material is particularly suitable for use in the visible spectrum, as indicated by its wavelength of 587.6nm.
The lens features a plano-convex geometry, with a 1.52mm edge thickness and a 4.4mm center thickness. The radius of curvature of the convex surface is 15.51mm, and the back focal length is 27.1mm. The lens does not have any inner or outer radius, indicating a uniform thickness across the lens.
The lens is coated with EDM VIS-EXT, a broadband anti-reflection coating designed for use in the visible spectrum, specifically for wavelengths ranging from 350nm to 700nm. This coating reduces surface reflections, thereby increasing the amount of light transmitted through the lens.