89-119 3mm Dia. x 4.5mm 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
- 3 mm
- EFL
- 4.5 mm
- BFL
- 3.78 mm
- R1
- 4.29 mm
- R2
- -4.29 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-119 3mm Dia. x 4.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm
This is a 3mm diameter, double-convex lens with a focal length of 4.5mm, sourced from Edmund Optics. The lens is made from n-BK7 Schott material, a popular choice for its high refractive index and low dispersion. The base shape of the lens is circular, and it features a spherical geometry with specific radii and thicknesses that contribute to its optical performance.
The lens has an outer radius of 0mm and an inner radius of 0mm, indicating a uniform thickness. The edge thickness is 1.47mm, while the center thickness is 2mm. The front and back surfaces of the lens are coated with EDM VIS-EXT, a broadband anti-reflection coating designed for use in the visible spectrum, specifically between 350 and 700nm. This coating enhances the lens's transmission capabilities and reduces unwanted reflections.
The lens's design and coating make it suitable for a wide range of applications within the specified wavelength range. However, it's essential to consider the lens's specific parameters and the requirements of your application to ensure a proper fit.
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