32-492 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 125 mm
- R1
- 76.28 mm
- R2
- -54.55 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
32-492 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm MgF2 400-700nm
The 32-492 is a high-quality achromatic doublet lens, sourced from the renowned optical 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 125mm, providing a high level of optical performance. The doublet design is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. This combination helps to minimize chromatic aberration, a common issue in optical systems, ensuring sharp and clear images.
The lens surfaces are coated with EDM MgF2 standard curve coatings, which are applied to both the front and back surfaces. These coatings help to reduce reflection, increase transmission, and protect the lens surfaces from environmental damage.
The lens geometry includes a thickness of 6.89mm at the edge, with a central thickness of 6mm and a central thickness 'a' of 2.4mm. The lens does not have an inner or outer radius, indicating a simple, circular shape.
