49-918-INK 15.0mm Dia. x 18.0mm 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
- 15 mm
- EFL
- 18 mm
- BFL
- 15.61 mm
- R1
- 12.11 mm
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6727030184452947
- λ
- 587.6 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
49-918-INK 15.0mm Dia. x 18.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
The 49-918-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 15.0mm, is designed for use in the visible to near-infrared spectrum, specifically between 400-1000nm. The lens has a front (planar) thickness of 1.4mm and a center thickness of 4mm, providing a base shape that is circular.
The lens's effective focal length (EFL) is 18mm, and its radius of curvature (R1) is 12.11mm. The back focal length (BFL) is 15.61mm, and both the inner and outer radii are 0mm. The lens is made from N-SF5 Schott, a high-quality optical glass known for its excellent transmission properties in the visible and near-infrared regions.
The lens is coated with edm visnir0sp2002000 on both the front and back surfaces. This coating is designed to enhance the lens's performance in the visible to near-infrared spectrum, providing improved transmission and reduced reflection. The coating also helps to protect the lens from environmental factors, such as dust and moisture.