47-693-INK 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=25mm VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6.25 mm
- EFL
- 25 mm
- R1
- 15.37 mm
- R2
- -11.16 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
47-693-INK 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=25mm VIS 0° 425-675nm
The 47-693-INK is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and an effective focal length (EFL) of 25 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for purchase directly from their website.
The lens is constructed from two types of glass: N-BK7 and N-SF5, both from Schott, ensuring excellent optical performance. The lens features a sophisticated geometry, with an inner radius of 0 mm, an outer radius of 0 mm, and a thickness edge of 2.73 mm. The center thickness is 2.3 mm, while the center a thickness is 0.9 mm, providing robust structural integrity.
The 47-693-INK lens comes with standard EDM VIS-0 curves on both the front and back surfaces, ensuring optimal light transmission and minimal distortion within the specified wavelength range. The lens is designed in a multiplet shape, enhancing its optical capabilities and making it suitable for a wide range of applications.
