32-305 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=25mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6.25 mm
- EFL
- 25 mm
- R1
- 15.37 mm
- R2
- -11.16 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
32-305 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=25mm MgF2 400-700nm
The 32-305 is a high-quality achromatic doublet lens from Edmund Optics, designed with a 6.25 mm diameter and a focal length of 25mm. This lens is a multiplet, meaning it is composed of multiple optical elements to achieve superior performance.
The lens is made from two types of glass: N-BK7 and N-SF5, both from Schott. N-BK7, also known as BK7, is a borosilicate crown glass known for its excellent optical properties and high damage threshold. N-SF5, on the other hand, is a high-index, low-dispersion glass that offers excellent optical performance.
The lens features a standard MgF2 coating on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, particularly in the 400-700nm range. The center thickness of the lens is 2.3mm, with a reduced thickness of 0.9mm at the edge.
The 32-305 is a versatile lens, suitable for a wide range of applications. Its achromatic design ensures minimal chromatic aberration, making it ideal for imaging and other applications where color accuracy is crucial. The lens is currently in stock and available for purchase through the Edmund Optics website.
