47-642-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 125 mm
- R1
- 76.28 mm
- R2
- -54.55 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
47-642-INK 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=125mm VIS 0° 425-675nm
The 47-642-INK is a high-quality Achromatic Doublet Lens, boasting a 25 mm diameter and an effective focal length (EFL) of 125mm, 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 immediate use.
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, providing excellent light transmission and protection against environmental factors.
The lens geometry is meticulously designed, with an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 6.89mm. The center thickness is 6mm, while the center 'a' thickness is 2.4mm. The lens's base shape is circular, and it is classified as a Multiplet due to its complex construction.
This lens is a versatile choice for various applications, thanks to its high-quality materials, precise geometry, and wide spectral range. For more information, including pricing and availability, please refer to the provided weblink.
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