KBC085 50.8 mm Dia. x -75 mm FL; Uncoated; Double-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 50.8 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
KBC085 50.8 mm Dia. x -75 mm FL; Uncoated; Double-Concave Lens
The KBC085 is a high-quality double-concave lens, sourced from the reputable vendor MKS/Newport. This lens boasts a base shape of a circle and is designed for use in spherical optical systems. The lens has a diameter of 50.8 mm and a thickness at the edge of 9.36 mm, ensuring durability and robustness. The center thickness is a mere 2.5 mm, contributing to its overall sleek design.
The lens has an effective focal length (EFL) of -75 mm, making it suitable for applications that require a negative focal length. The first radius of curvature (R1) is -77.943 mm, while the second radius (R2) is 77.943 mm, both contributing to the double-concave nature of the lens. The back focal length (BFL) is -75.82 mm, and the lens does not have any inner or outer radius, further emphasizing its concave design.
The KBC085 lens is made from N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties. The lens is designed to work with a wavelength of 589 nm. It is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements.
