47-666-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=45mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 45 mm
- R1
- 26.82 mm
- R2
- -20.12 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
47-666-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=45mm VIS 0° 425-675nm
The 47-666-INK is a high-quality achromatic doublet lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens, with a diameter of 12.5 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of 45mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. These materials are chosen for their excellent optical properties, including low dispersion and high transmission in the visible spectrum. The first element has a radius of curvature (R1) of 26.82mm, while the second element has an R2 of -20.12mm. The third radius (R3) is -61.38mm, contributing to the lens's overall optical performance.
The lens features a center thickness of 3.5mm, with a reduced thickness of 1.5mm at the edge. This design helps to minimize optical aberrations and distortions, ensuring sharp, clear images. The lens is coated with the EDM VIS-0 standard curve on both the front and back surfaces, further enhancing its performance by reducing reflection and increasing transmission.
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