47-651-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 500 mm
- R1
- 290.71 mm
- R2
- -232.07 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
47-651-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm
The 47-651-INK is a high-quality achromatic doublet lens, boasting a 25 mm diameter and an effective focal length (EFL) of 500mm, 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 directly from their website.
This achromatic doublet lens is meticulously crafted from two types of Schott glass, N-BK7 and N-SF5, which are renowned for their exceptional optical properties. The lens features a sophisticated geometry, with an inner radius of 0mm, an outer radius of 0mm, and a thickness edge of 5.13mm. The center thickness is 3mm, while the center a thickness is 2.5mm, ensuring optimal light transmission and minimal distortion.
The lens is coated with Edmund Optics' standard VIS-0 curve on both the front and back surfaces, enhancing its light transmission capabilities and durability. The 47-651-INK is a multiplet lens, meaning it is composed of multiple elements to achieve superior optical performance.
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