32-919 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 250 mm
- R1
- 160.73 mm
- R2
- -105.64 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
32-919 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm
The 32-919 is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens is specifically designed for use in the 400-700nm spectral range, making it suitable for a wide range of applications in the visible light spectrum.
The lens features a 25mm diameter and a focal length of 250mm, providing a high level of optical performance and versatility. The doublet design is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. This combination helps to correct chromatic aberrations, ensuring sharp and clear images.
The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating enhances the lens's transmission in the visible spectrum, reduces surface reflections, and provides protection against environmental hazards.
The geometry of the lens includes a thickness of 6.75mm at the edge, with a central thickness of 5mm and a 2.5mm thickness at the edge of the first surface. The lens's first and second radii are 160.73mm and -105.64mm, respectively, while the third radius is -295.75mm.
