38-469 18.0mm Dia. x 25.0mm 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
- 25 mm
- BFL
- 21.51 mm
- R1
- 12.92 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
38-469 18.0mm Dia. x 25.0mm FL; VIS-EXT Coated; Plano-Convex Lens VIS-EXT 350-700nm
The 38-469 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. It boasts an 18.0mm diameter and a 25.0mm focal length (FL), making it suitable for a wide range of optical applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.
The lens features a front and back coating of EDM VIS EXT, a broadband anti-reflection coating designed for use in the visible spectrum, specifically between 350-700nm. This coating significantly reduces surface reflections, enhancing the lens's overall transmission and improving its performance in various lighting conditions.
The geometry of the lens includes a 1.65mm edge thickness and a 5.3mm center thickness. The inner and outer radii are 0, and the lens's effective focal length (EFL) is 25mm. The front surface has a radius of curvature of 12.92mm, and the back focal length (BFL) is 21.51mm.
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