KBC040AR.33 25.4 mm Dia. x -75 mm FL; Double-Concave Lens Laser V-Coat 1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- MKS/Newport
Properties
- Shape
- Circular
- Diameter
- 25.4 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
KBC040AR.33 25.4 mm Dia. x -75 mm FL; Double-Concave Lens Laser V-Coat 1064nm
This KBC040AR.33 optical lens, sourced from MKS/Newport, is a double-concave spherical lens with a diameter of 25.4 mm and a focal length of -75 mm. The lens is made of n-BK7 Schott material, a popular choice for its high refractive index and low dispersion. The lens's geometry includes an edge thickness of 4.19 mm and a center thickness of 2.5 mm, contributing to its robust construction.
The lens features a double-concave design, with radii of curvature of -77.943 mm for the first surface and 77.943 mm for the second. This design is ideal for applications requiring a high degree of light convergence or divergence. The lens's effective focal length (EFL) is -75.82 mm, and its back focal length (BFL) is -75 mm.
The lens is coated with New AR-33 fromfigure on both the front and back surfaces, enhancing its performance in laser applications, particularly at a wavelength of 1064 nm. This anti-reflective coating reduces surface reflections, improving transmission and ensuring optimal light propagation.
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