KBC046AR.16 25.4 mm Dia. x -25 mm FL; NIR coated; Double-Concave Lens 650-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -25 mm
- BFL
- -25.81 mm
- R1
- -26.26 mm
- R2
- 26.26 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
KBC046AR.16 25.4 mm Dia. x -25 mm FL; NIR coated; Double-Concave Lens 650-1000nm
The KBC046AR.16 is a high-quality double-concave lens, designed with a base shape of a circle and a diameter of 25.4 mm. This lens is sourced from the reputable vendor MKS/Newport, ensuring reliability and precision. The lens features a significant double-concave geometry, with a center thickness of 2.5 mm and an edge thickness of 7.74 mm, providing a focal length of -25 mm. The back focal length is measured at -25.81 mm, offering a well-balanced optical design.
The lens is constructed from N-BK7 Schott material, a popular choice for its excellent optical properties and versatility. The material's index of refraction is optimized for a wavelength of 589 nm. The KBC046AR.16 is coated with a new AR-16 coating on both the front and back surfaces, enhancing its performance in the near-infrared region (650-1000 nm). This coating reduces surface reflections, improving transmission and overall system efficiency.