45-710-INK 20.0mm Dia. x 75.0mm 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
- 30 mm
- EFL
- 75 mm
- BFL
- 70.95 mm
- R1
- 38.76 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
45-710-INK 20.0mm Dia. x 75.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
The 45-710-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 between 400-1000nm. The lens has a front ( convex ) radius of curvature of 38.76mm and a back ( planar ) radius of curvature of 0mm.
The lens has an effective focal length (EFL) of 75.0mm, which is the distance from the lens's center to the focal point when the lens is imaging an object at infinity. The lens's thickness at the edge is 3.08mm, while its center thickness is 6.1mm. The back focal length (BFL), which is the distance from the lens's rear nodal point to its rear principal plane, is 70.95mm.
The lens is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion. The lens is coated with edm visnir0sp2002000 on both the front and back surfaces, which is a broadband anti-reflection coating designed for the VIS-NIR region. This coating helps to reduce surface reflections and increase transmission, making the lens more efficient in its intended application.
