67-539 20.0mm Dia. x 80.0mm 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
- 20 mm
- EFL
- 50 mm
- BFL
- 47.87 mm
- R1
- 25.84 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
67-539 20.0mm Dia. x 80.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
This is a 67-539 Plano-Convex Lens, a high-quality optical component sourced from Edmund Optics. The lens boasts a diameter of 20.0mm and a focal length of 80.0mm, 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 radius of curvature for the curved side is 25.84mm, and the lens has an edge thickness of 1.22mm and a center thickness of 3.23mm. The effective focal length (EFL) is 50mm, and the back focal length (BFL) is 47.87mm.
The lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is designed for the near-infrared (NIR) spectrum, specifically for wavelengths between 750nm and 1550nm. This coating enhances the lens's performance in the NIR spectrum, making it ideal for applications such as night vision, thermal imaging, and spectral analysis.
