KPC025AR.18 12.7 mm Dia. x -25 mm FL; IR coated; Plano-Concave Lens 1000-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -25 mm
- BFL
- -26.64 mm
- R1
- -12.92 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167401204613524
- λ
- 589 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
KPC025AR.18 12.7 mm Dia. x -25 mm FL; IR coated; Plano-Concave Lens 1000-1550nm
The KPC025AR.18 is a plano-concave lens with a diameter of 12.7 mm and a focal length of -25 mm, sourced from MKS/Newport. This lens is designed for use within the infrared spectrum, specifically between 1000 and 1550 nanometers.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The plano-concave geometry, where one surface is flat and the other is curved, is often used in optical systems to diverge or focus light.
The KPC025AR.18 features a new AR-18 coating on both the front and back surfaces. This anti-reflective coating is designed to reduce surface reflections, thereby improving transmission and minimizing back reflections. The coating is particularly effective within the infrared spectrum, making it ideal for this lens.
The lens has a thickness of 3.83 mm at the edge and 2.5 mm at the center. The inner and outer radii are both 0 mm, indicating a simple, two-surface design. The back focal length (BFL) is -26.64 mm.
This lens is currently in stock and available for immediate purchase. For more detailed information, please refer to the vendor's website at https://www.newport.com/f/ar18-n-bk7-plano-concave-lenses.