49-365 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=225mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 225 mm
- R1
- 139.53 mm
- R2
- -100.21 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
49-365 25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=225mm VIS-NIR 400-1000nm
The 49-365 is a high-quality achromatic doublet lens, boasting a 25 mm diameter and an effective focal length of 225mm. This lens is designed for use in the visible to near-infrared spectrum, specifically catering to the wavelength range of 400-1000nm.
The lens is composed of two elements, made from N-BK7 and N-SF5 Schott glass, respectively. These materials are renowned for their excellent optical properties, contributing to the lens's high performance. The lens features a sophisticated geometry, with an inner radius of 0, an outer radius of 0, and a center thickness of 3mm. The edge thickness is 4.67mm, and the lens has a front coating of edm visnir0sp2002000 and a back coating of the same.
This lens is sourced from Edmund Optics, a leading vendor in the optical industry. The catalog number for this lens is 49-365, and it is currently in stock. The lens's web link is https://www.edmundoptics.com/p/25mm-dia-x-225mm-fl-vis-nir-coated-achromatic-lens/9773/, providing easy access for users interested in purchasing this product.
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