KBC031 25.4 mm Dia. x -200 mm FL; Uncoated; Double-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -200 mm
- BFL
- -200.82 mm
- R1
- -207.15 mm
- R2
- 207.15 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
KBC031 25.4 mm Dia. x -200 mm FL; Uncoated; Double-Concave Lens
The KBC031 is a high-quality spherical lens, specifically designed for use in optical systems that require concave-concave lenses. This lens, sourced from the reputable vendor MKS/Newport, boasts a diameter of 25.4 mm and a focal length of -200 mm, making it ideal for a wide range of 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 double-concave geometry, with radii of curvature R1 and R2 at -207.148 mm and 207.148 mm respectively. This geometry results in a back focal length of -200.82 mm.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this does not affect its performance in many applications, and it can be advantageous in situations where cost or simplicity are considerations.
The lens has a thickness of 3.13 mm at the edge and 2.5 mm at the center. The inner and outer radii are both 0, indicating a uniform curvature throughout the lens. The lens is designed to operate at a wavelength of 589 nm.
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