67-518 15.0mm Dia. x 22.5mm 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
- 15 mm
- EFL
- 18 mm
- BFL
- 15.61 mm
- R1
- 12.11 mm
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6727030184452947
- λ
- 587.6 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
67-518 15.0mm Dia. x 22.5mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
This is a 15.0mm diameter by 22.5mm focal length plano-convex lens, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.
The lens is made from n-SF5 Schott, a material well-suited for NIR applications due to its low absorption and dispersion characteristics. The lens geometry includes a 1.4mm edge thickness and a 4mm center thickness, with a 12.11mm radius of curvature on the convex side. The effective focal length (EFL) is 18mm, and the back focal length (BFL) is 15.61mm.
The lens features a standard NIR-II coating on both the front and back surfaces, which is designed to enhance transmission in the 750-1550nm range. This coating helps to minimize reflection and absorption losses, thereby improving the overall efficiency and performance of the lens in NIR applications.