38-503 12.5mm Dia. x 20mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 20 mm
- BFL
- 17.69 mm
- R1
- 10.34 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
38-503 12.5mm Dia. x 20mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm
The 38-503 is a Plano-Convex Lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 12.5mm and a focal length of 20mm, making it suitable for a wide range of applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence.
The lens features a plano-convex geometry, meaning one side is flat (plano) and the other side is curved (convex). The radius of curvature for the curved side is 10.34mm, and the lens has a central thickness of 3.5mm and an edge thickness of 1.4mm. The back focal length (BFL) is 17.69mm, and the effective focal length (EFL) is 20mm.
The 38-503 lens is coated with edm visnir0sp2002000 on both the front and back surfaces. This coating enhances its performance in the visible (VIS) and near-infrared (NIR) spectrum, specifically between 400 and 1000nm. The coating reduces reflection and increases transmission, making the lens ideal for use in systems where high transmission and low loss are critical.