LF1547-B 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -150 mm
- BFL
- -148 mm
- R1
- 100 mm
- R2
- 43.1 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LF1547-B 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm 650-1050nm
The LF1547-B is a spherical lens with a concave-convex base shape and a circular geometry. It has a diameter of 25.4 mm and a thickness of 4.1 mm at the edge, reducing to 3 mm at the center. The effective focal length (EFL) of this lens is -150 mm, making it a negative meniscus lens. The back focal length (BFL) is -148 mm.
This lens is made from n-BK7 Schott, a high-quality borosilicate glass known for its excellent optical properties. It is designed to work within the wavelength range of 650-1050 nm, making it suitable for a wide range of optical applications.
The lens features broadband anti-reflection coatings on both the front and back surfaces. These coatings, identified as THo BBAR, are designed to reduce surface reflections and increase transmission across the specified wavelength range.
Please note that the inner and outer radii of this lens are not specified, indicating that they are not critical factors in its use. The LF1547-B is available from Thorlabs, a leading vendor in the field of optical components.
