49-383 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=200mm VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- 200 mm
- R1
- 124.12 mm
- R2
- -87.26 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
49-383 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=200mm VIS-NIR 400-1000nm
This is a 40 mm diameter achromatic doublet lens, catalog number 49-383, sourced from Edmund Optics. The lens is specifically designed for use in the visible to near-infrared spectrum, spanning 400 to 1000 nanometers. The lens is part of the multiplets category, featuring a complex geometry that enhances its optical performance.
The lens's geometry includes an effective focal length (EFL) of 200mm, a thickness at the edge of 10.09mm, and a center thickness of 8.5mm. The first radius of curvature (r1) is 124.12mm, the second radius (r2) is -87.26mm, and the third radius (r3) is -253.1mm. The inner and outer radii are both zero.
The lens is composed of two types of materials: N-BK7 from Schott and N-SF5 from Schott. These materials are known for their excellent optical properties, making them suitable for a wide range of applications. The lens is coated with a broadband anti-reflection coating, specifically the edm visnir0sp2002000 coating, on both the front and back surfaces. This coating enhances the lens's transmission and reduces unwanted reflections.
The lens is currently in stock and can be purchased directly from the vendor's website. For more information, please refer to the provided weblink.
