47-672 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 100 mm
- R1
- 61.54 mm
- R2
- -44.39 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
47-672 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm
The 47-672 is a high-quality achromatic doublet lens, boasting a 12.5 mm diameter and an effective focal length (EFL) of 100mm, specifically designed for the visible light spectrum ranging from 425 to 675nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase on their official website.
The lens is meticulously crafted from two types of Schott glass: N-BK7 and N-SF5. This combination ensures superior optical performance, minimizing chromatic aberration and delivering sharp, clear images. The lens features a multilayer coating, both on the front and back surfaces, specifically the "edm vis-0 std curve" coating. This coating enhances light transmission, reduces surface reflections, and protects the lens from environmental hazards.
The lens geometry is intricately designed, with a central thickness of 3mm and edge thickness of 4.03mm. The lens curvature includes three radii: r1 at 61.54mm, r2 at -44.39mm, and r3 at -130.26mm. These parameters contribute to the lens's excellent optical properties, making it suitable for a wide range of applications.
