45-920 20mm Dia. x -40 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- -40 mm
- BFL
- -42.31 mm
- R1
- -20.67 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
45-920 20mm Dia. x -40 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
The 45-920 is a Plano-Concave Lens with a 20mm diameter and a -40 FL (focal length) from Edmund Optics. This lens is designed for use in the visible to near-infrared spectrum, specifically between 400-1000nm.
The lens is made from n-BK7 Schott, a popular optical glass known for its excellent optical properties and high transmittance in the visible and near-infrared regions. The lens features a spherical shape, with a center thickness of 3.5mm and an edge thickness of 5.39mm, providing a robust and compact design.
The lens is coated with edm visnir0sp2002000 on both the front and back surfaces. This coating is designed to enhance the lens's performance in the visible to near-infrared spectrum, reducing reflection and increasing transmission.
The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm, indicating a simple, straightforward design. The base shape is circular, adding to the lens's versatility and applicability in various optical systems.
According to the vendor's website, the lens is currently in stock, making it readily available for immediate use. The detailed specifications and the validated weblink provided offer a comprehensive understanding of the lens, aiding users in their selection process.