MNN204 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-250mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- WTS Photonics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -250 mm
- BFL
- -248.62 mm
- R1
- 235.5 mm
- R2
- 83.18 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
MNN204 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-250mm Uncoated
The MNN204 is a 25.4 mm diameter Negative Meniscus Lens, sourced from the reputable vendor WTS Photonics. This lens is designed with a unique Spherical shape, featuring a Concave-Convex base type, and a Circular base shape. The lens is constructed from the high-quality material N-BK7 Schott, a borosilicate crown glass known for its excellent optical properties.
The lens has a significant EFL (Effective Focal Length) of -250mm, indicating its concave nature. The Inner Radius is 0, while the Outer Radius is also 0, suggesting a symmetrical design. The lens's thickness at the edge is 4.13mm, and at the center, it is 3.5mm, providing a robust structure.
The lens is designed to operate at a wavelength of 588nm. It does not come with any coating, as indicated in the item data. However, it is essential to note that coatings can significantly enhance the performance of lenses, including reducing reflection, increasing transmission, and protecting the lens surface.
This lens is currently in stock and available for immediate use. For more information, including pricing and availability, please refer to the provided weblink.
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