MNN202 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- WTS Photonics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -150 mm
- BFL
- -148.06 mm
- R1
- 89.95 mm
- R2
- 41.21 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
MNN202 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm Uncoated
The MNN202 is a 25.4 mm diameter Negative Meniscus Lens, sourced from the reputable vendor WTS Photonics. This lens is a Spherical Lens of the Concave-Convex variety, featuring a Base Shape of Circular.
The lens's geometry is meticulously designed, with a diameter of 25.4 mm, a thickness at the edge of 4.11 mm, and a thickness at the center of 3 mm. The Effective Focal Length (EFL) is -150 mm, indicating a concave lens. The first radius of curvature (r1) is 89.95 mm, while the second radius (r2) is 41.21 mm. The Back Focal Length (BFL) is -148.06 mm. The Inner and Outer Radius are both 0, suggesting a uniform curvature.
The lens is crafted from N-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. The wavelength for this lens is 588 nm. The lens is uncoated, offering a clear, unaltered optical path, although this may result in increased reflection and reduced transmission.
This lens is a robust and versatile optical component, suitable for a wide range of applications. Its detailed specifications make it an ideal choice for users seeking a high-performance concave lens.