45-931 25mm Dia. x -50mm FL; VIS-NIR Coated; Double-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -50 mm
- BFL
- -50.82 mm
- R1
- -52.1 mm
- R2
- 52.1 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
45-931 25mm Dia. x -50mm FL; VIS-NIR Coated; Double-Concave Lens 400-1000nm
The 45-931 is a double-concave spherical lens, characterized by its circular base shape and a diameter of 25mm. This lens is designed with a negative focal length of -50mm, making it a converging lens that brings light rays to a focus. The lens has a center thickness of 2.5mm and an edge thickness of 5.4mm, contributing to its robust construction.
The lens is fabricated from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. It is particularly suitable for applications in the visible and near-infrared spectrum, with a wavelength of 587.6nm.
The 45-931 lens features a VIS-NIR coating, denoted as 'edm visnir0sp2002000' on both the front and back surfaces. This anti-reflection coating is designed to minimize surface reflections and optimize transmission within the visible and near-infrared ranges, enhancing the lens's performance in these spectral regions.
This lens is sourced from Edmund Optics and is currently in stock, as indicated by its weblink status. For more information, users are encouraged to visit the provided weblink.
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