38-391 9.0mm Dia. x 25mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 18 mm
- BFL
- 16.41 mm
- R1
- 9.32 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
38-391 9.0mm Dia. x 25mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
This is a 38-391 Plano-Convex Lens, a high-quality optical component sourced from Edmund Optics. The lens boasts a 9.0mm diameter and a 25mm focal length, making it suitable for a wide range of applications.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It has a refractive index of 1.5168 at 587.6nm, which contributes to its high-performance capabilities.
The lens features a plano-convex geometry, meaning one side is flat while the other is curved. The curvature of the lens is defined by a radius of 9.32mm, which is the radius of the curvature of the curved surface. This geometry is commonly used in optical systems due to its ability to focus light efficiently.
The lens is coated with Edmund Optics' NIR-II standard curve coating on both the front and back surfaces. This coating enhances the lens's performance in the near-infrared spectrum, specifically between 750nm and 1550nm. It ensures high transmission and low reflection, making it ideal for applications that require optimal performance in the NIR range.
The lens has a central thickness of 2.41mm and an edge thickness of 1.25mm. The effective focal length (EFL) is 18mm, which is the distance from the lens's principal point to the focal point. The back focal length (BFL) is 16.41mm, which is the distance from the lens's rear surface to the focal point.
