49-319-INK 9 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 9 mm
- EFL
- 60 mm
- R1
- 36.51 mm
- R2
- -26.33 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
49-319-INK 9 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm
The 49-319-INK is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm.
The lens features a 9mm diameter and an effective focal length (EFL) of 60mm, making it suitable for a wide range of optical applications. The doublet is composed of two materials, N-BK7 and N-SF5, both from Schott, which are renowned for their excellent optical properties.
The lens is coated with EDm VISNIR0SP2002000, a proprietary coating from Edmund Optics, on both the front and back surfaces. This coating enhances the lens's performance in the VIS-NIR spectrum, reducing surface reflections and improving transmission.
The lens geometry is intricately designed, with a center thickness of 3.5mm and edge thickness of 4.59mm. The lens's radii are R1=36.51mm, R2=-26.33mm, and R3=-78.35mm, which contribute to its excellent optical performance. The lens also features a small inner radius and outer radius, both of which are zero.
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