12-927 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=40mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 40 mm
- R1
- 24.77 mm
- R2
- -18.01 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
12-927 12.5 mm Dia. N-BK7/N-SF5 Mounted Achromatic Doublet; EFL=40mm MgF2 400-700nm
This is a 12.5 mm diameter achromatic doublet lens, manufactured by Edmund Optics, with a catalog number 12-927. The lens is mounted and features a focal length of 40mm, designed for use within the spectral range of 400-700nm. The lens is multicoated with a standard MgF2 coating on both the front and back surfaces, ensuring high transmission and durability.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. The first element has a radius of curvature of 24.77mm, while the second element has a radius of -18.01mm. The third surface, which is the interface between the two elements, has a radius of -51.17mm. The center thickness of the lens is 3.73mm, with an edge thickness of 3.88mm. The inner radius is 0mm, and the outer radius is also 0mm.
This achromatic doublet lens is designed in a circular shape, with a Sub Type of Multiplets and a Base Shape of Circular. The lens is supplied with standard MgF2 coating on both the front and back surfaces, providing high transmission and durability. The lens is in stock and available for immediate shipping.
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