49-382 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=160mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 160 mm
- R1
- 98.66 mm
- R2
- -70.73 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
49-382 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=160mm VIS-NIR 400-1000nm
The 49-382 is a high-quality achromatic doublet lens, boasting a 40 mm diameter and a focal length of 160mm, specifically designed for the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for immediate purchase 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 and an outer radius of 0, a thickness edge of 9.48mm, and a center thickness of 8.5mm. The r1, r2, and r3 radii are 98.66mm, -70.73mm, and -205.72mm, respectively, contributing to the lens's superior optical properties.
The 49-382 lens is coated with the EDM VIS-NIR 0SP2002000 coating on both the front and back surfaces, enhancing its performance in the VIS-NIR spectrum. This coating reduces surface reflections and increases transmission, making it ideal for a wide range of applications, including but not limited to, imaging, spectroscopy, and beam shaping.
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