45-919 20mm Dia. x -30 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
- -30 mm
- BFL
- -31.96 mm
- R1
- -23.54 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
45-919 20mm Dia. x -30 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
The 45-919 is a Plano-Concave Lens with a 20mm diameter, offering a focal length of -30 and a central thickness of 3.5mm, with an edge thickness of 5.39mm. This lens is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components.
The lens is made from n-sf11 Schott, a high-index glass with excellent transmittance across the visible and near-infrared spectrum, making it suitable for a wide range of applications. The lens's geometry, including its inner and outer radii, is optimized for precision and clarity, ensuring accurate light transmission and minimal distortion.
The lens features 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 regions, reducing surface reflections and increasing transmission. The coating is designed to be durable and resistant to environmental factors, ensuring the lens maintains its performance over time.
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