45-895 25mm Dia. x 175mm 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
- 25 mm
- EFL
- 175 mm
- BFL
- 173.94 mm
- R1
- 180.4 mm
- R2
- -180.4 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
45-895 25mm Dia. x 175mm FL; VIS-NIR Coated; Double-Convex Lens VIS-NIR 400-1000nm
The 45-895 is a high-quality double-convex lens, sourced from the renowned optical vendor, Edmund Optics. This lens boasts a 25mm diameter and a focal length of 175mm, making it suitable for a wide range of applications.
The lens is constructed from Schott's n-BK7 glass, a popular material in the optical industry due to its excellent optical properties and versatility. The base shape of the lens is circular, and it features a spherical geometry, with an inner radius of 0 and an outer radius of 0. The lens has a thickness of 2.33mm at the edge and 3.2mm at the center. The effective focal length (EFL) is 175mm, and the back focal length (BFL) is 173.94mm.
The 45-895 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 in the visible and near-infrared spectrum, between 400 and 1000nm. The coating reduces surface reflections, thereby increasing transmission and improving overall image quality.
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