12-930 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=60mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 60 mm
- R1
- 36.51 mm
- R2
- -26.33 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
12-930 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=60mm MgF2 400-700nm
This is a 12.5 mm diameter achromatic doublet lens, manufactured by Edmund Optics, with a catalog number 12-930. The lens is mounted and features a standard MgF2 coating on both the front and back surfaces, designed for use within the 400-700nm wavelength range.
The lens's geometry includes an effective focal length (EFL) of 60mm, with a center thickness of 3.5mm and an edge thickness of 4.21mm. The lens features three radii of curvature: r1 at 36.51mm, r2 at -26.33mm, and r3 at -78.35mm. The lens material consists of a combination of N-BK7 and N-SF5 Schott glasses.
The lens is available for purchase directly from the Edmund Optics website, and the link provided indicates that it is currently in stock. This lens is a multiplet, designed to minimize chromatic aberration, making it suitable for a wide range of imaging and optical applications.
