KBC019 12.7 mm Dia. x -75 mm FL; Uncoated; Double-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -75 mm
- BFL
- -75.82 mm
- R1
- -77.94 mm
- R2
- 77.94 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
KBC019 12.7 mm Dia. x -75 mm FL; Uncoated; Double-Concave Lens
The KBC019 is a high-quality double-concave lens, sourced from the reputable vendor MKS/Newport. This lens boasts a 12.7 mm diameter and a focal length of -75 mm, making it ideal for a wide range of optical applications.
The lens is made from N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties and high damage threshold. The base shape of the lens is circular, and it features a spherical geometry, with a center thickness of 2.5 mm and an edge thickness of 2.92 mm. The inner and outer radii are 0 mm, and the lens has a double-concave shape, with radii of curvature R1 and R2 being -77.943 mm and 77.943 mm respectively.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this also means that it is more cost-effective and suitable for applications where coating is not necessary. The lens is designed to work at a wavelength of 589 nm.
