38-457-INK 12.5mm Dia. x 40.0mm 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
- 12.5 mm
- EFL
- 40 mm
- BFL
- 38.55 mm
- R1
- 20.67 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
38-457-INK 12.5mm Dia. x 40.0mm FL; VIS-EXT; Inked; Plano-Convex Lens VIS-EXT 350-700nm
The 38-457-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 12.5mm, is designed for use within the visible light spectrum, specifically between 350-700nm. The lens features a front and back coating of EDM VIS EXT, which is a broadband anti-reflection coating optimized for the visible spectrum.
The lens has a thickness of 1.23mm at the edge and 2.2mm at the center, with a focal length (EFL) of 40mm. The radius of curvature for the first surface (R1) is 20.67mm, and the back focal length (BFL) is 38.55mm. The lens is made of N-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility.
This lens is inked, which is a process where a dye is applied to the edge of the lens to indicate its orientation. The dye does not affect the optical properties of the lens but serves as a visual aid during assembly.
Please note that the lens is spherical, meaning it has a curved surface, which can cause spherical aberration in some applications. However, this type of lens is widely used due to its simplicity and cost-effectiveness.
For more information, including pricing and availability, please refer to the provided web link.