12-926 12.5 mm Dia. N-SK11/N-SF5 Mounted Achromatic Doublet; EFL=35mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.5 mm
- EFL
- 35 mm
- R1
- 22.94 mm
- R2
- -15.54 mm
Material 1
- Name
- N-SK11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5658215515592446
- λ
- 550 nm
- B1
- 1.17963631
- C1
- 0.00680282081 μm2
- B2
- 0.229817295
- C2
- 0.0219737205 μm2
- B3
- 0.935789652
- C3
- 101.513232 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
12-926 12.5 mm Dia. N-SK11/N-SF5 Mounted Achromatic Doublet; EFL=35mm MgF2 400-700nm
This is a 12.5 mm diameter achromatic doublet lens, manufactured by Edmund Optics, with a catalog number 12-926. The lens is mounted and features an effective focal length (EFL) of 35mm. It is designed for use in the spectral range of 400-700nm, making it suitable for a wide range of optical applications.
The lens is composed of two elements, made from N-SK11 and N-SF5 Schott glass. These elements are arranged in a doublet configuration, which is a common design used to reduce chromatic aberration. The lens features a standard MgF2 coating on both the front and back surfaces, which provides anti-reflection properties and enhances transmission in the specified spectral range.
The lens geometry includes a central thickness of 3.68mm, with an edge thickness of 3.98mm. The first and second radii of curvature are 22.94mm and -15.54mm respectively, while the third radius of curvature is -58.84mm. The lens has an inner radius of 0mm and an outer radius of 0mm.
The lens is available for purchase directly from the Edmund Optics website, where it is currently in stock. The provided weblink provides direct access to the product page for easy ordering and further information.
