89-187 30mm Dia. x 30mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 30 mm
- BFL
- 28.12 mm
- R1
- 45.61 mm
- R2
- -45.61 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
89-187 30mm Dia. x 30mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
The 89-187 is a high-quality double-convex lens, boasting a 30mm diameter and a focal length of 30mm. This lens is sourced from the reputable vendor, Edmund Optics, and is available in stock for immediate use. The lens is constructed from n-SF11 Schott material, a popular choice for its excellent optical properties.
The lens features a front and back coating of EDM VIS-EXT, a specialized coating that enhances the lens's performance in the visible light spectrum, specifically between 350-700nm. This coating aids in reducing surface reflections and increasing transmission, making it an ideal choice for applications that require high light transmission and clarity.
The lens's geometry is meticulously designed, with an edge thickness of 1.43mm and a center thickness of 6.5mm. The inner and outer radii are 0mm, and the back focal length is 28.12mm. The lens's EFL (Effective Focal Length) is 30mm, which is the same as its physical focal length due to the lens's symmetrical design.