49-290-INK 50 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
- 50 mm
- EFL
- 500 mm
- R1
- 305.74 mm
- R2
- -223.2 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
49-290-INK 50 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=500mm VIS 0° 425-675nm
The 49-290-INK is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens, with a diameter of 50 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nm. The lens boasts an effective focal length (EFL) of 500 mm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. These materials are chosen for their excellent optical properties, contributing to the lens's high performance. The lens features a standard curve coating on both the front and back surfaces, further enhancing its capabilities.
The geometry of the lens is carefully designed, with a thickness at the edge of 10.51 mm and a center thickness of 8 mm. The lens also features a central thickness 'a' of 4 mm. The radii of the lens surfaces are also precisely engineered, with r1 at 305.74 mm, r2 at -223.2 mm, and r3 at -663.82 mm.
According to the provided data, the lens is currently in stock and available for immediate use. For more detailed information, including pricing and additional specifications, please refer to the vendor's website using the provided weblink.
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