KBX178 50.8 mm Dia. x 500 mm FL; Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 500 mm
- BFL
- 498.59 mm
- R1
- 516.1 mm
- R2
- -516.1 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
KBX178 50.8 mm Dia. x 500 mm FL; Uncoated; Double-Convex Lens
The KBX178 is a high-quality double-convex lens, sourced from the reputable vendor MKS/Newport. This lens boasts a diameter of 50.8 mm and a focal length of 500 mm, making it suitable for a wide range of optical applications. The lens is crafted from the renowned N-BK7 material, produced by Schott, ensuring excellent optical performance.
The KBX178 features a base shape of a circle, with a thickness of 3 mm at the edge and 4.251 mm at the center. The lens's effective focal length (EFL) is 500 mm, and the radii of curvature are 516.098 mm for the first surface and -516.098 mm for the second surface. The back focal length (BFL) is 498.59 mm.
This lens is uncoated, providing a cost-effective solution for applications where coating is not required or preferred. The lack of coating does not compromise the lens's optical quality, as it is made from high-quality N-BK7 material. However, it may be more susceptible to environmental factors such as dust and moisture.
The KBX178 is available directly from the vendor's website, where you can find more detailed specifications and purchase information. Please note that the link provided is valid and indicates that the lens is currently in stock.
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