45-262 3 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=12mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 3 mm
- EFL
- 12 mm
- R1
- 7.39 mm
- R2
- -5.15 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
45-262 3 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=12mm MgF2 400-700nm
The 45-262 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 3 mm, is designed for use in the visible spectrum, specifically between 400-700 nm. The achromatic design ensures minimal chromatic aberration, making it an ideal choice for a wide range of optical applications.
The lens features a focal length of 12 mm, indicated by the EFL (Effective Focal Length) parameter. It is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, a leading manufacturer of optical glass. The use of these materials ensures high optical quality and performance.
The lens's geometry is carefully crafted, with an edge thickness of 2.45 mm and a center thickness of 1.68 mm. The radii of the lens surfaces are R1 = 7.39 mm, R2 = -5.15 mm, and R3 = -14.62 mm, providing the lens with its unique optical properties.
The lens is coated with EDM MgF2 std curve on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission in the visible spectrum.
