45-909 50mm Dia. x 250mm 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
- 50 mm
- EFL
- 250 mm
- BFL
- 248.37 mm
- R1
- 257.57 mm
- R2
- -257.57 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
45-909 50mm Dia. x 250mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-909 is a high-quality double-convex lens, boasting a 50mm diameter and a focal length of 250mm. This lens is designed for use within the visible to near-infrared spectrum, specifically catering to wavelengths between 400 and 1000nm.
Manufactured by the reputable optical vendor, Edmund Optics, this lens is constructed from the high-grade material, n-BK7 Schott, ensuring durability and longevity. The lens features a front and back coating of edm visnir0sp2002000, which enhances its performance within the specified wavelength range.
The lens's geometry is meticulously designed, with an edge thickness of 2.5mm and a center thickness of 4.93mm. The inner and outer radii are 0mm, and the lens has a base shape of a circle. The effective focal length (EFL) is 250mm, and the back focal length (BFL) is 248.37mm. The first and second radii of curvature are 257.57mm and -257.57mm, respectively.
This lens is a versatile and reliable option for various optical applications, offering superior quality and precision. Its detailed specifications make it an ideal choice for users seeking a lens tailored to the visible to near-infrared spectrum.
