45-914 9mm Dia. x -18 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- -18 mm
- BFL
- -19.26 mm
- R1
- -14.12 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
45-914 9mm Dia. x -18 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
The 45-914 is a Plano-Concave Spherical Lens with a 9mm diameter, sourced from the renowned optical components vendor, Edmund Optics. This lens is designed for use within the visible to near-infrared (VIS-NIR) spectrum, spanning from 400 to 1000nm.
The lens's geometry showcases a thickness of 2.89mm at the edge, tapering down to 2.25mm at the center, with an effective focal length (EFL) of -18mm. The front surface radius (R1) is -14.12mm, and the back focal length (BFL) measures -19.26mm. The lens's inner and outer radii are both zero, indicating a plano surface on one side and a concave surface on the other.
The lens is crafted from the high-quality material n-SF11 from Schott, a leading manufacturer of optical glass. This material is known for its excellent optical properties, making it suitable for a wide range of applications.
The lens features a VIS-NIR coating, denoted as 'edm visnir0sp2002000' on both the front and back surfaces. This coating is designed to enhance the lens's performance within the VIS-NIR spectrum, providing improved transmission and reduced reflection.
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