MNN205 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- WTS Photonics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -300 mm
- BFL
- -299.04 mm
- R1
- 235.5 mm
- R2
- 93.33 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
MNN205 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-300mm Uncoated
The MNN205 is a 25.4 mm diameter Negative Meniscus Lens, featuring a concave-convex base shape and a circular geometry. This lens is sourced from WTS Photonics, a reputable vendor in the optical industry. The lens's design includes a 4.03 mm thickness at the edge and a 3.5 mm thickness at the center, providing a robust structure while maintaining a sleek profile.
The lens's effective focal length (EFL) is -300mm, indicating its diverging nature, which is further emphasized by its back focal length (BFL) of -299.04mm. The radii of curvature for the first and second surfaces are 235.5mm and 93.33mm, respectively, contributing to the lens's unique optical properties.
The lens is crafted from N-BK7 Schott, a popular material in the optical industry due to its excellent optical properties and versatility. The wavelength of operation for this lens is 588nm, making it suitable for various applications within this spectral range.
Notably, this lens is uncoated, which may impact its performance in certain applications. Users are encouraged to consider the implications of an uncoated lens, such as increased susceptibility to environmental factors and potential reduction in transmission efficiency, when incorporating this component into their optical systems.
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