32-927 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=400mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 400 mm
- R1
- 257.16 mm
- R2
- -169.03 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
32-927 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=400mm MgF2 400-700nm
The 32-927 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 wavelength range, making it suitable for a wide range of optical applications.
The lens features a 40mm diameter and an effective focal length (EFL) of 400mm, providing a strong optical performance. The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring high-quality optical properties. The use of these materials helps to minimize chromatic aberration, a common issue in optical systems.
The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces. This coating is designed to enhance the lens's performance by reducing reflection and increasing transmission in the 400-700nm range. The coating is applied in a standard curve, ensuring consistent performance across the lens's surface.
The lens's geometry is carefully designed to optimize its performance. The edge thickness is 11.3mm, while the center thickness is 8.5mm with an additional 4mm thickness at the center a. The inner and outer radii are 0mm, and the curvature radii are r1=257.16mm, r2=-169.03mm, and r3=-473.08mm.
