45-898 30mm Dia. x 50mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 30 mm
- EFL
- 50 mm
- BFL
- 47.82 mm
- R1
- 50.56 mm
- R2
- -50.56 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
45-898 30mm Dia. x 50mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-898 is a double-convex lens with a diameter of 30mm and a focal length of 50mm, sourced from Edmund Optics. This lens is designed for use within the visible to near-infrared spectrum, specifically catering to wavelengths between 400 and 1000nm.
The lens is constructed from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a spherical geometry, with radii of curvature R1 and R2 at 50.56mm and -50.56mm respectively. The lens has an edge thickness of 2mm and a center thickness of 6.55mm, while the back focal length (BFL) measures 47.82mm.
The 45-898 lens is coated with a VIS-NIR coating, specifically the EDM VISNIR0SP2002000 coating, on both the front and back surfaces. This coating enhances the lens's performance within the specified wavelength range, improving transmission and reducing reflection.
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