45-499-INK 20.0mm Dia. x 20.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 20 mm
- BFL
- 17.42 mm
- R1
- 15.7 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
45-499-INK 20.0mm Dia. x 20.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
The 45-499-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 20.0mm, is designed for use in the visible to near-infrared (VIS-NIR) spectrum, specifically at a wavelength of 587.6nm.
The lens's geometry is characterized by its edge thickness of 1.0mm and center thickness of 4.6mm. It has an effective focal length (EFL) of 20.0mm, a front radius (R1) of 15.7mm, and a back focal length (BFL) of 17.42mm. The lens's inner and outer radii are 0mm, indicating a flat inner surface and a curved outer surface.
The lens is made from N-SF11 Schott, a popular material for optical elements due to its high refractive index and low dispersion. This makes it suitable for a wide range of applications, including imaging, beam shaping, and laser systems.
The lens features a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating is designed to enhance the lens's performance in the VIS-NIR spectrum, improving transmission and reducing reflection.
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