32-935 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 250 mm
- R1
- 156 mm
- R2
- -108.7 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
32-935 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=250mm MgF2 400-700nm
This is a 40 mm diameter achromatic doublet lens, catalog number 32-935, sourced from Edmund Optics. The lens is designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications. The lens is coated with MgF2, which is known for its standard curve and high transmission in the visible spectrum.
The lens is a multiplet, meaning it is composed of multiple elements. The first and second elements are made of N-BK7 and N-SF5 Schott glass respectively. These materials were chosen for their excellent optical properties, contributing to the lens's high performance. The first element has a radius of curvature (R1) of 156, while the second element has an R1 of -108.7 and an R2 of -313.64. The lens's effective focal length (EFL) is 250mm, making it a moderate telephoto lens.
The lens has a thickness of 10.57mm at the edge and 8mm at the center. The center thickness can be further reduced to 4.5mm if necessary. The lens's inner and outer radii are both 0, indicating a simple, circular geometry.
The lens is currently in stock and can be purchased directly from the Edmund Optics website. The provided weblink leads directly to the product page for easy access.
More Lens
