47-669-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 75 mm
- R1
- 46.44 mm
- R2
- -33.77 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
47-669-INK 12.5 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=75mm VIS 0° 425-675nm
The 47-669-INK is a high-quality achromatic doublet lens, boasting a 12.5 mm diameter and an effective focal length (EFL) of 75mm, 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 through their website.
The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring superior optical performance. The front and back surfaces of the lens are coated with EDM VIS-0 STD CURVE, a broadband anti-reflection coating that enhances transmission and reduces surface reflections.
The lens geometry is meticulously designed, with a thickness of 3.97mm at the edge and 3mm at the center. The first and second radii of curvature are 46.44mm and -33.77mm, respectively, while the third radius of curvature is -95.94mm. The lens also features an inner radius of 0mm and an outer radius of 0mm.
This achromatic doublet lens is a multiplet, meaning it is composed of multiple optical elements. It is available in a circular shape, making it suitable for a wide range of optical applications. The lens is currently in stock, ready for immediate purchase and use in your optical system designs.
