45-932 25mm Dia. x -100mm 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
- -100 mm
- BFL
- -101.64 mm
- R1
- -104.2 mm
- R2
- 104.2 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
45-932 25mm Dia. x -100mm FL; VIS-NIR Coated; Double-Concave Lens 400-1000nm
The 45-932 is a double-concave spherical lens, characterized by its 25mm diameter and -100mm focal length. This lens is sourced from Edmund Optics, a reputable vendor in the optical industry. It is designed for use within the visible to near-infrared spectrum, specifically between 400 and 1000nm, making it suitable for a wide range of optical applications.
The lens geometry features a center thickness of 5mm and an edge thickness of 6.43mm, with a clear aperture that allows for efficient light transmission. The radii of curvature for the front and back surfaces are -104.2mm and 104.2mm, respectively, contributing to its double-concave shape. The back focal length is -101.64mm, and the lens has no inner or outer radius, indicating a uniform thickness across the lens.
The lens is constructed from n-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility. The lens is coated with edm visnir0sp2002000 on both the front and back surfaces, enhancing its performance within the specified wavelength range.
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